{"id":9417,"date":"2025-12-21T15:13:47","date_gmt":"2025-12-21T07:13:47","guid":{"rendered":"https:\/\/www.cncmachiningshops.com\/?p=9417"},"modified":"2026-01-01T10:25:51","modified_gmt":"2026-01-01T02:25:51","slug":"303-stainless-steel","status":"publish","type":"post","link":"https:\/\/www.cncmachiningshops.com\/ru\/303-stainless-steel\/","title":{"rendered":"303 \u041d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0430\u044f \u0441\u0442\u0430\u043b\u044c: \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430, \u043e\u0431\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0435\u043c\u043e\u0441\u0442\u044c, \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u0438 \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u043d\u044b\u0435 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f"},"content":{"rendered":"
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<\/div>\n
\u041d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0430\u044f \u0441\u0442\u0430\u043b\u044c 303 (AISI 303 \/ UNS S30300) \u0437\u0430\u043d\u0438\u043c\u0430\u0435\u0442 \u0443\u043d\u0438\u043a\u0430\u043b\u044c\u043d\u043e\u0435 \u0438 \u0434\u043e\u043b\u0433\u043e\u0432\u0435\u0447\u043d\u043e\u0435 \u043c\u0435\u0441\u0442\u043e \u0432 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u043c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0435. \u042d\u0442\u043e \u0430\u0443\u0441\u0442\u0435\u043d\u0438\u0442\u043d\u0430\u044f \u043d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0430\u044f \u0441\u0442\u0430\u043b\u044c, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0431\u044b\u043b\u0430 \u043d\u0430\u043c\u0435\u0440\u0435\u043d\u043d\u043e \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0430, \u0447\u0442\u043e\u0431\u044b \u0441\u0442\u0430\u0442\u044c \u043b\u0443\u0447\u0448\u0438\u043c \u0441\u043e\u0440\u0442\u043e\u043c \u0434\u043b\u044f \u201c\u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0439 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438\u201d, \u0434\u0430\u0436\u0435 \u0435\u0441\u043b\u0438 \u044d\u0442\u043e \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442 \u043f\u043e\u0442\u0435\u0440\u044e \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043a\u043e\u0440\u0440\u043e\u0437\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0442\u043e\u0439\u043a\u043e\u0441\u0442\u0438 \u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043f\u0440\u043e\u0447\u043d\u043e\u0441\u0442\u0438. \u042d\u0442\u043e\u0442 \u043a\u043e\u043c\u043f\u0440\u043e\u043c\u0438\u0441\u0441 \u043d\u0435 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u043e\u0439; \u044d\u0442\u043e \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u043d\u0430\u044f \u043f\u0440\u0438\u0447\u0438\u043d\u0430, \u043f\u043e \u043a\u043e\u0442\u043e\u0440\u043e\u0439 303 \u043f\u043e-\u043f\u0440\u0435\u0436\u043d\u0435\u043c\u0443 \u0448\u0438\u0440\u043e\u043a\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u043f\u0440\u0438 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0435\u0439 \u0441\u0442\u0430\u043b\u0438 \u043d\u0430 \u0441\u0442\u0430\u043d\u043a\u0430\u0445 \u0441 \u0427\u041f\u0423.<\/div>\n
\u0421 \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u043d\u043e\u0439 \u0442\u043e\u0447\u043a\u0438 \u0437\u0440\u0435\u043d\u0438\u044f 303 \u0432\u044b\u0431\u0438\u0440\u0430\u044e\u0442 \u043d\u0435 \u043f\u043e\u0442\u043e\u043c\u0443, \u0447\u0442\u043e \u044d\u0442\u043e \u0441\u0430\u043c\u044b\u0439 \u043f\u0440\u043e\u0447\u043d\u044b\u0439 \u0438\u043b\u0438 \u043d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u043a\u043e\u0440\u0440\u043e\u0437\u0438\u043e\u043d\u043d\u043e\u0441\u0442\u043e\u0439\u043a\u0438\u0439 \u0441\u043f\u043b\u0430\u0432. \u0415\u0433\u043e \u0432\u044b\u0431\u0438\u0440\u0430\u044e\u0442 \u043f\u043e\u0442\u043e\u043c\u0443, \u0447\u0442\u043e \u043e\u043d \u043e\u0447\u0435\u043d\u044c \u0445\u043e\u0440\u043e\u0448\u043e \u043f\u043e\u0434\u0434\u0430\u0435\u0442\u0441\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u043d\u0430 \u0441\u0442\u0430\u043d\u043a\u0430\u0445. 303 \u043e\u0431\u0440\u0430\u0437\u0443\u0435\u0442 \u043a\u043e\u0440\u043e\u0442\u043a\u0443\u044e, \u0445\u043e\u0440\u043e\u0448\u043e \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u0443\u0435\u043c\u0443\u044e \u0441\u0442\u0440\u0443\u0436\u043a\u0443, \u0442\u0440\u0435\u0431\u0443\u0435\u0442 \u043c\u0435\u043d\u044c\u0448\u0435\u0433\u043e \u0443\u0441\u0438\u043b\u0438\u044f \u0440\u0435\u0437\u0430\u043d\u0438\u044f \u0438 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0435\u0442 \u0431\u043e\u043b\u0435\u0435 \u043f\u0440\u0435\u0434\u0441\u043a\u0430\u0437\u0443\u0435\u043c\u0443\u044e \u0447\u0438\u0441\u0442\u043e\u0442\u0443 \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u0438, \u0447\u0435\u043c \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u0430\u044f 304, \u0431\u043b\u0430\u0433\u043e\u0434\u0430\u0440\u044f \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u044e \u0441\u0435\u0440\u044b \u0432 \u0445\u0438\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0441\u043e\u0441\u0442\u0430\u0432 \u0441\u043f\u043b\u0430\u0432\u0430. \u042d\u0442\u043e \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442 \u0441\u043e\u043a\u0440\u0430\u0449\u0435\u043d\u0438\u0435 \u0432\u0440\u0435\u043c\u0435\u043d\u0438 \u0446\u0438\u043a\u043b\u0430 \u0438 \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u0435 \u0441\u0440\u043e\u043a\u0430 \u0441\u043b\u0443\u0436\u0431\u044b \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430 \u043f\u0440\u0438 \u043a\u0440\u0443\u043f\u043d\u043e\u0441\u0435\u0440\u0438\u0439\u043d\u043e\u043c \u0442\u043e\u0447\u0435\u043d\u0438\u0438, \u0448\u0432\u0435\u0439\u0446\u0430\u0440\u0441\u043a\u043e\u0439 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u0438 \u043f\u0440\u0435\u0446\u0438\u0437\u0438\u043e\u043d\u043d\u043e\u043c \u0444\u0440\u0435\u0437\u0435\u0440\u043e\u0432\u0430\u043d\u0438\u0438.<\/div>\n
\u041e\u0434\u043d\u0430\u043a\u043e \u044d\u0442\u0438 \u043f\u0440\u0435\u0438\u043c\u0443\u0449\u0435\u0441\u0442\u0432\u0430 \u0438\u043c\u0435\u044e\u0442 \u0447\u0435\u0442\u043a\u0438\u0435 \u0433\u0440\u0430\u043d\u0438\u0446\u044b. \u0422\u0435 \u0436\u0435 \u0434\u043e\u0431\u0430\u0432\u043a\u0438 \u0441\u0435\u0440\u044b, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043e\u0431\u043b\u0435\u0433\u0447\u0430\u044e\u0442 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0443, \u0442\u0430\u043a\u0436\u0435 \u0437\u0430\u0442\u0440\u0443\u0434\u043d\u044f\u044e\u0442 \u0441\u0432\u0430\u0440\u043a\u0443 \u0438 \u0441\u043d\u0438\u0436\u0430\u044e\u0442 \u0434\u043e\u043b\u0433\u043e\u0432\u0435\u0447\u043d\u043e\u0441\u0442\u044c. \u0426\u0435\u043b\u044c \u044d\u0442\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0438 \u2014 \u043e\u0431\u044a\u044f\u0441\u043d\u0438\u0442\u044c, \u043f\u043e\u0447\u0435\u043c\u0443 \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u044b \u0432\u044b\u0431\u0438\u0440\u0430\u044e\u0442 303 \u0438, \u0447\u0442\u043e \u043d\u0435 \u043c\u0435\u043d\u0435\u0435 \u0432\u0430\u0436\u043d\u043e, \u043a\u043e\u0433\u0434\u0430 \u0438\u043c \u043d\u0435 \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u044d\u0442\u043e\u0433\u043e \u0434\u0435\u043b\u0430\u0442\u044c. \u0427\u0442\u043e\u0431\u044b \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c 303, \u0430 \u043d\u0435 \u043f\u0440\u043e\u0441\u0442\u043e \u0432\u044b\u0431\u0438\u0440\u0430\u0442\u044c \u0435\u0433\u043e \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e, \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u0437\u043d\u0430\u0442\u044c, \u043a\u0430\u043a \u043d\u0430\u0439\u0442\u0438 \u044d\u0442\u043e\u0442 \u0431\u0430\u043b\u0430\u043d\u0441.<\/div>\n

\u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u043d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0430\u044f \u0441\u0442\u0430\u043b\u044c 303? \u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430 \u0438 \u043f\u043e\u0437\u0438\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435?<\/h2>\n
\u041d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0430\u044f \u0441\u0442\u0430\u043b\u044c 303 \u2014 \u044d\u0442\u043e \u043c\u043e\u0434\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0430\u0443\u0441\u0442\u0435\u043d\u0438\u0442\u043d\u044b\u0439 \u0441\u043f\u043b\u0430\u0432, \u0441\u043e\u0437\u0434\u0430\u043d\u043d\u044b\u0439 \u0434\u043b\u044f \u043f\u043e\u0432\u044b\u0448\u0435\u043d\u0438\u044f \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0430. \u041e\u043d \u043e\u0442\u043d\u043e\u0441\u0438\u0442\u0441\u044f \u043a \u0441\u0435\u043c\u0435\u0439\u0441\u0442\u0432\u0443 300-\u0439 \u0441\u0435\u0440\u0438\u0438 (\u0445\u0440\u043e\u043c-\u043d\u0438\u043a\u0435\u043b\u044c), \u043d\u043e \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f \u0442\u0435\u043c, \u0447\u0442\u043e \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d \u0434\u043b\u044f \u0441\u0443\u0431\u0442\u0440\u0430\u043a\u0442\u0438\u0432\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0430.<\/div>\n

\u0410\u0443\u0441\u0442\u0435\u043d\u0438\u0442\u043d\u0430\u044f \u043d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0430\u044f \u0441\u0442\u0430\u043b\u044c \u0441 \u0438\u0437\u044e\u043c\u0438\u043d\u043a\u043e\u0439<\/h3>\n
303, \u043a\u0430\u043a \u0438 304, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u0445\u0440\u043e\u043c \u0434\u043b\u044f \u043f\u0430\u0441\u0441\u0438\u0432\u0430\u0446\u0438\u0438 \u043f\u043e\u0432\u0435\u0440\u0445\u043d\u043e\u0441\u0442\u0438 \u0438 \u043d\u0438\u043a\u0435\u043b\u044c \u0434\u043b\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u044f \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u043e\u0439 \u0430\u0443\u0441\u0442\u0435\u043d\u0438\u0442\u043d\u043e\u0439 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b. \u042d\u0442\u043e \u0434\u0435\u043b\u0430\u0435\u0442 \u0435\u0433\u043e \u043f\u0440\u043e\u0447\u043d\u044b\u043c \u0438 \u043d\u0435\u043c\u0430\u0433\u043d\u0438\u0442\u043d\u044b\u043c (\u0432 \u043e\u0442\u043e\u0436\u0436\u0435\u043d\u043d\u043e\u043c \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0438).<\/div>\n
\u0412\u0430\u0436\u043d\u043e\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435 \u2014 \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0441\u0435\u0440\u044b (S).<\/div>\n
    \n
  • \n
    \u041c\u0435\u0445\u0430\u043d\u0438\u0437\u043c:<\/strong> \u0421\u0435\u0440\u0430 \u0441\u043e\u0437\u0434\u0430\u0435\u0442 \u043c\u044f\u0433\u043a\u0438\u0435 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0441\u0443\u043b\u044c\u0444\u0438\u0434\u0430 \u043c\u0430\u0440\u0433\u0430\u043d\u0446\u0430 (MnS), \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0435 \u043f\u043e \u0432\u0441\u0435\u0439 \u043c\u0435\u0442\u0430\u043b\u043b\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043c\u0430\u0442\u0440\u0438\u0446\u0435.<\/div>\n<\/li>\n
  • \n
    \u0420\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442:<\/strong> \u042d\u0442\u0438 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0442 \u043a\u0430\u043a \u0441\u0442\u0440\u0443\u0436\u043a\u043e\u043b\u043e\u043c\u044b \u0438 \u0441\u043c\u0430\u0437\u043a\u0438 \u0432\u043d\u0443\u0442\u0440\u0438 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430 \u0432\u043e \u0432\u0440\u0435\u043c\u044f \u0440\u0435\u0437\u0430\u043d\u0438\u044f.<\/div>\n<\/li>\n<\/ul>\n

    \u041c\u0435\u0441\u0442\u043e 303 \u0441\u0440\u0435\u0434\u0438 \u043d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0438\u0445 \u0441\u0442\u0430\u043b\u0435\u0439<\/h3>\n
    303 \u2014 \u044d\u0442\u043e \u0441\u043f\u043b\u0430\u0432, \u0441\u043e\u0437\u0434\u0430\u043d\u043d\u044b\u0439 \u0434\u043b\u044f \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u043e\u0439 \u0446\u0435\u043b\u0438, \u0430 \u043d\u0435 \u0434\u043b\u044f \u043e\u0431\u0449\u0435\u0433\u043e \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f.<\/div>\n
      \n
    • \n
      \u041f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441 304:<\/strong> \u041e\u0431\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0435\u0442\u0441\u044f \u043d\u0430 20\u201330% \u0431\u044b\u0441\u0442\u0440\u0435\u0435, \u043d\u043e \u043c\u0435\u043d\u0435\u0435 \u0443\u0441\u0442\u043e\u0439\u0447\u0438\u0432 \u043a \u043a\u043e\u0440\u0440\u043e\u0437\u0438\u0438.<\/div>\n<\/li>\n
    • \n
      \u041f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441 316:<\/strong> 316 \u043d\u0430\u043c\u043d\u043e\u0433\u043e \u0434\u0435\u0448\u0435\u0432\u043b\u0435 \u0438 \u043f\u0440\u043e\u0449\u0435 \u0432 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435, \u043d\u043e \u043e\u043d \u043d\u0435 \u0441\u043b\u0443\u0436\u0438\u0442 \u0442\u0430\u043a \u0434\u043e\u043b\u0433\u043e \u0432 \u043c\u043e\u0440\u0441\u043a\u043e\u0439 \u0441\u0440\u0435\u0434\u0435.<\/div>\n<\/li>\n
    • \n
      \u041f\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u044e \u0441 416:<\/strong> \u041e\u043d \u043c\u0435\u043d\u0435\u0435 \u0441\u043a\u043b\u043e\u043d\u0435\u043d \u043a \u0440\u0436\u0430\u0432\u0447\u0438\u043d\u0435, \u0447\u0435\u043c \u043c\u0430\u0440\u0442\u0435\u043d\u0441\u0438\u0442\u043d\u044b\u0435 \u0441\u043e\u0440\u0442\u0430 \u0434\u043b\u044f \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0439 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 (\u0442\u0430\u043a\u0438\u0435 \u043a\u0430\u043a 416), \u043d\u043e \u043e\u043d \u043d\u0435 \u0442\u0430\u043a\u043e\u0439 \u0442\u0432\u0435\u0440\u0434\u044b\u0439.<\/div>\n<\/li>\n<\/ul>\n
      \u0418\u043d\u0436\u0435\u043d\u0435\u0440\u043d\u043e\u0435 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435:<\/strong> 303 \u0441\u043e\u0437\u0434\u0430\u043d \u0434\u043b\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438, \u0430 \u043d\u0435 \u0434\u043b\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0432 \u0430\u0433\u0440\u0435\u0441\u0441\u0438\u0432\u043d\u043e\u0439 \u0441\u0440\u0435\u0434\u0435. \u0412\u044b\u0431\u0438\u0440\u0430\u0439\u0442\u0435 \u0435\u0433\u043e, \u043a\u043e\u0433\u0434\u0430 \u044d\u043a\u043e\u043d\u043e\u043c\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u044c \u0438 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044c \u0440\u0430\u0437\u043c\u0435\u0440\u043e\u0432 \u0432\u0430\u0436\u043d\u0435\u0435 \u043c\u0430\u043a\u0441\u0438\u043c\u0430\u043b\u044c\u043d\u043e\u0439 \u0441\u0442\u043e\u0439\u043a\u043e\u0441\u0442\u0438 \u043a \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044e \u043e\u043a\u0440\u0443\u0436\u0430\u044e\u0449\u0435\u0439 \u0441\u0440\u0435\u0434\u044b.<\/div>\n

      \u0427\u0442\u043e \u0432\u0445\u043e\u0434\u0438\u0442 \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u043d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0435\u0439 \u0441\u0442\u0430\u043b\u0438 303?<\/h3>\n
      \u0425\u0438\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0441\u043e\u0441\u0442\u0430\u0432 303 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u0435\u0442 \u0435\u0433\u043e \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430. \u041e\u043d \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d \u043d\u0435 \u0434\u043b\u044f \u0447\u0438\u0441\u0442\u043e\u0442\u044b, \u0430 \u0434\u043b\u044f \u0442\u043e\u0433\u043e, \u043d\u0430\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0445\u043e\u0440\u043e\u0448\u043e \u043e\u043d \u043f\u043e\u0434\u0434\u0430\u0435\u0442\u0441\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0435.<\/div>\n
      \u0422\u0430\u0431\u043b\u0438\u0446\u0430 1: \u041d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u044b\u0439 \u0445\u0438\u043c\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0441\u043e\u0441\u0442\u0430\u0432 (\u0432\u0435\u0441.%)<\/strong><\/div>\n
      \n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n
      \u042d\u043b\u0435\u043c\u0435\u043d\u0442<\/td>\n\u041c\u0438\u043d\u0438\u043c\u0443\u043c %<\/td>\n\u041c\u0430\u043a\u0441\u0438\u043c\u0443\u043c %<\/td>\n\u0420\u043e\u043b\u044c \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u0430<\/td>\n<\/tr>\n
      \u0425\u0440\u043e\u043c (Cr)<\/td>\n17<\/td>\n19<\/td>\n\u0441\u043e\u0437\u0434\u0430\u0435\u0442 \u043f\u0430\u0441\u0441\u0438\u0432\u043d\u044b\u0439 \u043e\u043a\u0441\u0438\u0434\u043d\u044b\u0439 \u0441\u043b\u043e\u0439, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u0442 \u043e\u0442 \u043a\u043e\u0440\u0440\u043e\u0437\u0438\u0438.<\/td>\n<\/tr>\n
      \u041d\u0438\u043a\u0435\u043b\u044c (Ni)<\/td>\n8<\/td>\n10<\/td>\n\u0441\u0442\u0430\u0431\u0438\u043b\u0438\u0437\u0438\u0440\u0443\u0435\u0442 \u0430\u0443\u0441\u0442\u0435\u043d\u0438\u0442 \u0438 \u0434\u0435\u043b\u0430\u0435\u0442 \u0435\u0433\u043e \u043f\u0440\u043e\u0447\u043d\u0435\u0435 \u0438 \u043f\u043b\u0430\u0441\u0442\u0438\u0447\u043d\u0435\u0435.<\/td>\n<\/tr>\n
      \u0421\u0435\u0440\u0430 (S)<\/td>\n0.15<\/td>\n0.35<\/td>\n\u041a\u043b\u044e\u0447\u0435\u0432\u043e\u0435 \u043e\u0442\u043b\u0438\u0447\u0438\u0435. \u0421\u043e\u0437\u0434\u0430\u0435\u0442 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f MnS \u0434\u043b\u044f \u0434\u0440\u043e\u0431\u043b\u0435\u043d\u0438\u044f \u0441\u0442\u0440\u0443\u0436\u043a\u0438.<\/td>\n<\/tr>\n
      \u041c\u0430\u0440\u0433\u0430\u043d\u0435\u0446 (Mn)<\/td>\n\u2013<\/td>\n2<\/td>\n\u0421\u043e\u0435\u0434\u0438\u043d\u044f\u0435\u0442\u0441\u044f \u0441 \u0441\u0435\u0440\u043e\u0439 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u043f\u043e\u043b\u0435\u0437\u043d\u044b\u0445 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0439.<\/td>\n<\/tr>\n
      \u0424\u043e\u0441\u0444\u043e\u0440 (P)<\/td>\n\u2013<\/td>\n0.2<\/td>\n\u041c\u0438\u043a\u0440\u043e\u044d\u043b\u0435\u043c\u0435\u043d\u0442, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0441\u043f\u043e\u0441\u043e\u0431\u0441\u0442\u0432\u0443\u0435\u0442 \u043e\u0431\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0435\u043c\u043e\u0441\u0442\u0438.<\/td>\n<\/tr>\n
      \u0423\u0433\u043b\u0435\u0440\u043e\u0434 (C)<\/td>\n\u2013<\/td>\n0.15<\/td>\n\u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u043d\u0430 \u043d\u0438\u0437\u043a\u043e\u043c \u0443\u0440\u043e\u0432\u043d\u0435 \u0434\u043b\u044f \u0441\u043e\u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u043f\u043b\u0430\u0441\u0442\u0438\u0447\u043d\u043e\u0441\u0442\u0438 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430.<\/td>\n<\/tr>\n
      \u0416\u0435\u043b\u0435\u0437\u043e (Fe)<\/td>\n\u0411\u0430\u043b\u0430\u043d\u0441<\/td>\n<\/td>\n\u0411\u0430\u0437\u043e\u0432\u0430\u044f \u043c\u0430\u0442\u0440\u0438\u0446\u0430.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
      \u0418\u043d\u0436\u0435\u043d\u0435\u0440\u043d\u0430\u044f \u0446\u0435\u043d\u0430 \u0441\u0435\u0440\u044b<\/strong><\/div>\n
      \u0412\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f MnS \u0440\u0430\u0437\u0440\u0443\u0448\u0430\u044e\u0442 \u043d\u0435\u043f\u0440\u0435\u0440\u044b\u0432\u043d\u044b\u0439 \u0441\u043b\u043e\u0439 \u043e\u043a\u0441\u0438\u0434\u0430 \u0445\u0440\u043e\u043c\u0430, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u0442 \u043d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0443\u044e \u0441\u0442\u0430\u043b\u044c, \u043d\u043e \u0441\u0435\u0440\u0430 \u0434\u0435\u043b\u0430\u0435\u0442 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b \u043b\u0435\u0433\u043a\u043e \u043e\u0431\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0435\u043c\u044b\u043c.<\/div>\n
        \n
      • \n
        \u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u0435 1:<\/strong> \u041f\u0438\u0442\u0442\u0438\u043d\u0433\u043e\u0432\u0430\u044f \u043a\u043e\u0440\u0440\u043e\u0437\u0438\u044f \u043d\u0430\u0447\u0438\u043d\u0430\u0435\u0442\u0441\u044f \u043b\u0435\u0433\u0447\u0435 \u0432 \u044d\u0442\u0438\u0445 \u043c\u0435\u0441\u0442\u0430\u0445, \u0433\u0434\u0435 \u043d\u0430\u0445\u043e\u0434\u044f\u0442\u0441\u044f \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f.<\/div>\n<\/li>\n
      • \n
        \u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u0435 2:<\/strong> \u0412\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u043f\u043e\u0432\u044b\u0448\u0430\u044e\u0442 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043d\u0430\u043f\u0440\u044f\u0436\u0435\u043d\u0438\u0439, \u0447\u0442\u043e \u0441\u043e\u043a\u0440\u0430\u0449\u0430\u0435\u0442 \u0441\u0440\u043e\u043a \u0441\u043b\u0443\u0436\u0431\u044b \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430.<\/div>\n<\/li>\n<\/ul>\n
        \u0412 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u0441\u0435\u0440\u0430 \u0432\u044b\u0437\u044b\u0432\u0430\u0435\u0442 \u201c\u0433\u043e\u0440\u044f\u0447\u0435\u0435 \u0440\u0430\u0441\u0442\u0440\u0435\u0441\u043a\u0438\u0432\u0430\u043d\u0438\u0435\u201d \u043f\u0440\u0438 \u0441\u0432\u0430\u0440\u043a\u0435, \u0447\u0442\u043e \u0434\u0435\u043b\u0430\u0435\u0442 303 \u043f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043d\u0435\u043f\u0440\u0438\u0433\u043e\u0434\u043d\u044b\u043c \u0434\u043b\u044f \u0441\u0432\u0430\u0440\u043a\u0438.<\/div>\n

        \u0427\u0442\u043e \u043e\u0437\u043d\u0430\u0447\u0430\u044e\u0442 \u044d\u0442\u0438 \u0446\u0438\u0444\u0440\u044b \u0434\u043b\u044f \u043c\u0435\u0445\u0430\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0438 \u0444\u0438\u0437\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0441\u0432\u043e\u0439\u0441\u0442\u0432<\/h2>\n
        \u0418\u043d\u0436\u0435\u043d\u0435\u0440\u044b \u0434\u043e\u043b\u0436\u043d\u044b \u0440\u0430\u0441\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u0442\u044c \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430 303 \u0441 \u0442\u043e\u0447\u043a\u0438 \u0437\u0440\u0435\u043d\u0438\u044f \u0438\u0445 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f: \u0434\u043b\u044f \u0438\u0437\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0442\u043e\u0447\u043d\u044b\u0445 \u0442\u043e\u043a\u0430\u0440\u043d\u044b\u0445 \u0434\u0435\u0442\u0430\u043b\u0435\u0439, \u0432\u0430\u043b\u043e\u0432 \u0438 \u0444\u0438\u0442\u0438\u043d\u0433\u043e\u0432. \u041e\u043d \u043f\u0440\u043e\u0447\u043d\u044b\u0439, \u043d\u043e \u043d\u0435 \u0442\u0430\u043a, \u043a\u0430\u043a 304 \u0438\u043b\u0438 17-4PH.<\/div>\n

        \u041c\u0435\u0445\u0430\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0441\u0432\u043e\u0439\u0441\u0442\u0432\u0430 (\u043e\u0442\u043e\u0436\u0436\u0435\u043d\u043d\u043e\u0435 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435)<\/h3>\n
        \u0422\u0430\u0431\u043b\u0438\u0446\u0430 2: \u0421\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u0435 \u043c\u0435\u0445\u0430\u043d\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u0441\u0432\u043e\u0439\u0441\u0442\u0432<\/strong><\/div>\n
        \n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n
        \u041d\u0435\u0434\u0432\u0438\u0436\u0438\u043c\u043e\u0441\u0442\u044c<\/td>\n\u041d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0430\u044f \u0441\u0442\u0430\u043b\u044c 303<\/td>\n304 \u041d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0430\u044f<\/td>\n\u0418\u043d\u0436\u0435\u043d\u0435\u0440\u043d\u0430\u044f \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0446\u0438\u044f<\/td>\n<\/tr>\n
        \u041f\u0440\u043e\u0447\u043d\u043e\u0441\u0442\u044c \u043d\u0430 \u0440\u0430\u0437\u0440\u044b\u0432<\/td>\n~620 \u041c\u041f\u0430 (90 ksi)<\/td>\n~515 \u041c\u041f\u0430 (75 ksi)<\/td>\n303 \u043d\u0435\u043c\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0447\u043d\u0435\u0435 \u0432 \u043e\u0442\u043e\u0436\u0436\u0435\u043d\u043d\u043e\u043c \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0438, \u043f\u043e\u0442\u043e\u043c\u0443 \u0447\u0442\u043e \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442 \u0441\u0435\u0440\u0443 \u0438 \u0444\u043e\u0441\u0444\u043e\u0440.<\/td>\n<\/tr>\n
        \u041f\u0440\u0435\u0434\u0435\u043b \u0442\u0435\u043a\u0443\u0447\u0435\u0441\u0442\u0438<\/td>\n~240 \u041c\u041f\u0430 (35 ksi)<\/td>\n~205 \u041c\u041f\u0430 (30 ksi)<\/td>\nGood enough for fasteners and structures that aren\u2019t very important.<\/td>\n<\/tr>\n
        \u0420\u0430\u0441\u0442\u044f\u0436\u043a\u0430<\/td>\n35\u201350%<\/td>\n40 to 60%<\/td>\nLess ductility. 303 doesn\u2019t stretch as much before it breaks.<\/td>\n<\/tr>\n
        Brinell hardness<\/td>\nabout 160 HB<\/td>\nabout 150 HB<\/td>\nThe hardness is about the same, and the machines work well without being too soft or gummy.<\/td>\n<\/tr>\n
        Fatigue Limit<\/td>\n\u041d\u0438\u0436\u043d\u0438\u0439<\/td>\n\u0412\u044b\u0448\u0435<\/td>\nDon\u2019t use 303 for parts that will be under a lot of cyclic loading (vibration).<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
        Tip for design:<\/strong> Don\u2019t use 303 for parts that will be bent or formed in the cold. The parts will also crack when they bend because of the inclusions that break chips.<\/div>\n

        Why 303 Stainless Steel Works So Well (From a CNC Point of View)<\/h2>\n
        303 stainless steel is the standard for \u201cmachinability\u201d in the austenitic family of CNC manufacturing.<\/div>\n

        Control and stability of chips<\/h3>\n
          \n
        • \n
          304\/316 Behavior:<\/strong> These alloys make long, stringy, tough chips that look like \u201cbird\u2019s nests\u201d and wrap around the tool and workpiece. This means you have to stop often. They harden quickly when you work with them.<\/div>\n<\/li>\n
        • \n
          303 Behavior:<\/strong> The MnS inclusions make the chip break into small, easy-to-handle curls. This makes it possible for:<\/div>\n
            \n
          • \n
            Continuous, automated operation, especially on Swiss lathes.<\/div>\n<\/li>\n
          • \n
            Less heat buildup at the cutting edge.<\/div>\n<\/li>\n
          • \n
            Less force needed to cut.<\/div>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

            Life of the Tool and Finish of the Surface<\/h3>\n
            The chips break off easily, and the sulfur acts as an internal \u201clubricant,\u201d so tools can last three to five times longer in 303 than in 304.<\/div>\n
            303 naturally makes a smoother, matte finish without the tearing or galling that happens with 304. It consistently holds tight tolerances (e.g., \u00b10.01mm) over large production runs.<\/div>\n
            Table 3: Machinability Rating (AISI B1112 = 100%)<\/strong><\/div>\n
            \n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n
            \u0421\u043f\u043b\u0430\u0432<\/td>\nRating %<\/td>\nChip Character<\/td>\n\u0422\u0438\u043f\u0438\u0447\u043d\u0430\u044f \u043e\u0431\u043b\u0430\u0441\u0442\u044c \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u044f<\/td>\n<\/tr>\n
            303<\/td>\n75%<\/td>\nSmall and fragile<\/td>\nTurning a lot of things at once<\/td>\n<\/tr>\n
            304<\/td>\n45%<\/td>\nLong, stringy<\/td>\n\u041e\u0431\u0449\u0435\u0435 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u043e<\/td>\n<\/tr>\n
            316<\/td>\n40%<\/td>\nHard and stringy<\/td>\nParts for marine use<\/td>\n<\/tr>\n
            17-4PH<\/td>\n50%<\/td>\nMedium, hard<\/td>\nShafts with a lot of strength<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

            303 Stainless Steel CNC Machining Guidelines<\/h2>\n
            303 is forgiving, but fine-tuning the process can save a lot of money.<\/div>\n

            1. Choosing the right tools<\/h3>\n
              \n
            • \n
              \u0422\u0432\u0435\u0440\u0434\u044b\u0439 \u0441\u043f\u043b\u0430\u0432:<\/strong> Standard carbide tools without a coating or with a TiAlN coating work very well.<\/div>\n<\/li>\n
            • \n
              Geometry:<\/strong> To cut the metal cleanly, use positive rake angles.<\/div>\n<\/li>\n
            • \n
              Sharpness:<\/strong> To avoid work hardening, keep your tools sharp. However, 303 hardens much less than 304.<\/div>\n<\/li>\n<\/ul>\n

              2. Cutting Settings<\/h3>\n
                \n
              • \n
                \u0421\u043a\u043e\u0440\u043e\u0441\u0442\u044c:<\/strong> You can run 303 at higher surface speeds (SFM) than 304, which means you can get more done.<\/div>\n<\/li>\n
              • \n
                \u041e\u0445\u043b\u0430\u0436\u0434\u0430\u044e\u0449\u0430\u044f \u0436\u0438\u0434\u043a\u043e\u0441\u0442\u044c:<\/strong> High-pressure coolant is helpful but not as important as it is with 304 because the chips come out easily. Oil is often used in Swiss machining to make things slide better.<\/div>\n<\/li>\n<\/ul>\n

                3. Turning and milling<\/h3>\n
                  \n
                • \n
                  \u041f\u043e\u0432\u043e\u0440\u043e\u0442:<\/strong> 303 is great at turning. Swiss machining is the standard material for turned parts with small diameters and complex shapes, like screws, pins, and bushings.<\/div>\n<\/li>\n
                • \n
                  \u0424\u0440\u0435\u0437\u0435\u0440\u043e\u0432\u0430\u043d\u0438\u0435:<\/strong> It mills well, but deep pocketing can still make things hot.<\/div>\n<\/li>\n<\/ul>\n

                  303 stainless steel has some limitations (critical boundaries).<\/h2>\n
                  The trade-offs in engineering for 303 are very clear. If you use it wrong, it can cause a huge failure.<\/div>\n

                  1. Less resistance to corrosion<\/h3>\n
                  The sulfur inclusions make tiny breaks in the surface.<\/div>\n
                  303 will rust and pit much faster than 304 in wet, salty, or marine environments. It often gets a \u201cginger\u201d rust bloom.<\/div>\n
                  Restriction:<\/strong> Do not use 303 on marine hardware or outside architectural features that will be exposed to rain.<\/div>\n

                  2. Not weldable<\/h3>\n
                  Don\u2019t weld 303.<\/strong> The weld pool cracks when it gets too hot because of the high sulfur content. The joint will be weak and have holes in it. You have to switch to 304 or 316 if you need to weld something.<\/div>\n

                  3. Rules and regulations (food and medical)<\/h3>\n
                    \n
                  • \n
                    Food Grade:<\/strong> NSF\/FDA does not generally allow 303 for surfaces that come into contact with food because the sulfur inclusions can harbor bacteria and pit, making cleaning hard.<\/div>\n<\/li>\n
                  • \n
                    \u041c\u0435\u0434\u0438\u0446\u0438\u043d\u0430:<\/strong> It is not often used for implants. For cleanliness, 304V or 316LVM (Vacuum Melted) are better.<\/div>\n<\/li>\n<\/ul>\n

                    A Guide to Choosing Between 303 and 304 Stainless Steel<\/h2>\n
                    This is the most common choice of material when getting CNC work done.<\/div>\n
                    Table 4: A Comparison of 303 and 304 Engineering<\/strong><\/div>\n
                    \n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n
                    \u041e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u044c<\/td>\n\u041d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0430\u044f \u0441\u0442\u0430\u043b\u044c 303<\/td>\n304 \u041d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0430\u044f<\/td>\nDecision Reasoning<\/td>\n<\/tr>\n
                    \u041e\u0431\u0440\u0430\u0431\u0430\u0442\u044b\u0432\u0430\u0435\u043c\u043e\u0441\u0442\u044c<\/td>\n\u0412\u0435\u043b\u0438\u043a\u0438\u0439<\/td>\nGood \/ Bad<\/td>\nUse 303 for parts that are big and hard to make.<\/td>\n<\/tr>\n
                    \u041a\u043e\u0440\u0440\u043e\u0437\u0438\u044f<\/td>\nGood (Indoor)<\/td>\n\u041e\u0447\u0435\u043d\u044c \u0445\u043e\u0440\u043e\u0448\u043e<\/td>\nUse 304 in wet or outdoor settings.<\/td>\n<\/tr>\n
                    \u0421\u0432\u0430\u0440\u0438\u0432\u0430\u0435\u043c\u043e\u0441\u0442\u044c<\/td>\nBad (Stay Away)<\/td>\n\u0412\u0435\u043b\u0438\u043a\u0438\u0439<\/td>\n304 is great for welded assemblies.<\/td>\n<\/tr>\n
                    Cost (Part)<\/td>\nLess<\/td>\n\u0412\u044b\u0448\u0435<\/td>\n303 cuts down on machining time by a lot.<\/td>\n<\/tr>\n
                    Cost (Material)<\/td>\na little higher<\/td>\n\u041d\u0438\u0436\u043d\u0438\u0439<\/td>\nFaster production makes up for the lower material cost.<\/td>\n<\/tr>\n
                    \u0427\u0438\u0441\u0442\u043e\u0442\u0430<\/td>\n\u041d\u0438\u0437\u043a\u0438\u0439<\/td>\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439<\/td>\nUse 304 for food, medical, or vacuum.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
                    The Rule of Thumb:<\/strong><\/div>\n
                      \n
                    • \n
                      Is it a screw machine part (bolt, nut, or fitting) that gets a lot of use? -> Use 303.<\/div>\n<\/li>\n
                    • \n
                      Is it a chemical tank or a welded sheet metal box? -> Use 304.<\/div>\n<\/li>\n<\/ul>\n

                      Common Uses for 303 Stainless Steel<\/h2>\n
                      303 is used all over the place in industries that need small, precise parts.<\/div>\n
                        \n
                      • \n
                        \u041a\u0440\u0435\u043f\u0435\u0436\u043d\u044b\u0435 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u044b:<\/strong> Nuts, bolts, screws, and standoffs.<\/div>\n<\/li>\n
                      • \n
                        \u0410\u0432\u0442\u043e\u043c\u043e\u0431\u0438\u043b\u044c\u043d\u0430\u044f \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0441\u0442\u044c:<\/strong> Bushings, sensor housings, and shafts.<\/div>\n<\/li>\n
                      • \n
                        \u0410\u044d\u0440\u043e\u043a\u043e\u0441\u043c\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u043f\u0440\u043e\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u043e\u0441\u0442\u044c:<\/strong> fittings that aren\u2019t critical and parts of the secondary structure.<\/div>\n<\/li>\n
                      • \n
                        \u042d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u0438\u043a\u0430:<\/strong> Connectors, adapter bodies, and complicated milled housings.<\/div>\n<\/li>\n
                      • \n
                        General Industry:<\/strong> Valve bodies, nozzles, and pump shafts (for fluids that don\u2019t corrode).<\/div>\n<\/li>\n<\/ul>\n

                        Things to think about for surface finishing and post-processing<\/h2>\n

                        \u041f\u043e\u043b\u0438\u0440\u043e\u0432\u043a\u0430<\/h3>\n
                        303 can be polished, but it will not achieve the same \u201cmirror\u201d finish as 304 or 316. When you look at them closely, the sulfur inclusions can look like tiny \u201cgrains\u201d or pits.<\/div>\n

                        \u041f\u0430\u0441\u0441\u0438\u0432\u0430\u0446\u0438\u044f<\/h3>\n
                        For 303, passivation with nitric or citric acid is strongly suggested. It takes away iron and sulfides from the surface, making it more resistant to corrosion, like 304. But to stop \u201cflash attack\u201d on the sulfur inclusions, special passivation processes (like alkaline-alkaline-nitric) are often needed.<\/div>\n

                        Summary\u2014What Engineers Should Remember<\/h2>\n
                        303 stainless steel is a material that is made for manufacturing. It answers the question, \u201cHow do we quickly make 10,000 of these?\u201d instead of \u201cHow can we keep this in the ocean for 100 years?\u201d<\/div>\n
                        Important Suggestions:<\/strong><\/div>\n
                          \n
                        • \n
                          To lower unit costs, use 303 for CNC turned parts that aren\u2019t welded and are made in large quantities.<\/div>\n<\/li>\n
                        • \n
                          Do not use 303 for marine, food-contact, or welded work.<\/div>\n<\/li>\n
                        • \n
                          Passivation should be required to get the most out of 303 parts.<\/div>\n<\/li>\n
                        • \n
                          Design for Machining:<\/strong> Use 303\u2019s stability to hold tighter tolerances than you could with 304.<\/div>\n<\/li>\n<\/ul>\n
                          Engineers can take advantage of the speed of 303 without hurting the quality of the product by making sure that the material choice matches the manufacturing method and environmental limits.<\/div>\n

                          \u0427\u0430\u0441\u0442\u043e \u0437\u0430\u0434\u0430\u0432\u0430\u0435\u043c\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b<\/h2>\n
                          Q: Is 303 stainless steel able to be magnetized?<\/strong><\/div>\n
                          A: No. 303 is also austenitic and not magnetic when it is annealed, just like 304. But after a lot of cold working (machining), it can become a little magnetic, but not as much as 304.<\/div>\n
                          <\/div>\n
                          Q: Does 303 get rusty?<\/strong><\/div>\n
                          A: It doesn\u2019t rust easily in normal indoor settings, but it does rust much faster in wet, salty, or outdoor settings than 304. Pitting is the most common way for things to fail.<\/div>\n
                          <\/div>\n
                          Q: Is it okay to use 303 on food equipment?<\/strong><\/div>\n
                          A: Usually not. The sulfur inclusions make tiny pits that can hold bacteria and are harder to clean. The most common \u201cfood grade\u201d stainless steels are 304 and 316.<\/div>\n
                          <\/div>\n
                          Q: What makes 303 not weldable?<\/strong><\/div>\n
                          A: The high sulfur content makes the weld bead \u201chot short,\u201d which causes it to crack as it cools down. You can physically stick two pieces together, but the joint won\u2019t be strong enough to hold them together.<\/div>\n
                          <\/div>\n
                          Q: How do 303 and 303Se differ from each other?<\/strong><\/div>\n
                          A: 303Se uses Selenium instead of Sulfur to make it easier to work with. It has a slightly better surface finish and can be cold-headed, but it costs more and is less common than standard 303.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

                          \u041d\u0435\u0440\u0436\u0430\u0432\u0435\u044e\u0449\u0430\u044f \u0441\u0442\u0430\u043b\u044c 303 (AISI 303 \/ UNS S30300) \u0437\u0430\u043d\u0438\u043c\u0430\u0435\u0442 \u0443\u043d\u0438\u043a\u0430\u043b\u044c\u043d\u043e\u0435 \u0438 \u0434\u043e\u043b\u0433\u043e\u0432\u0435\u0447\u043d\u043e\u0435 \u043c\u0435\u0441\u0442\u043e \u0432 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u043c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0435.<\/p>","protected":false},"author":1,"featured_media":9572,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[103],"tags":[],"class_list":["post-9417","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-materials-guide"],"yoast_head":"\n303 Stainless Steel: Properties, Machinability & Applications<\/title>\n<meta name=\"description\" content=\"Learn 303 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