{"id":9721,"date":"2026-01-06T16:03:42","date_gmt":"2026-01-06T08:03:42","guid":{"rendered":"https:\/\/www.cncmachiningshops.com\/?p=9721"},"modified":"2026-01-05T12:08:41","modified_gmt":"2026-01-05T04:08:41","slug":"c26000-brass","status":"publish","type":"post","link":"https:\/\/www.cncmachiningshops.com\/it\/c26000-brass\/","title":{"rendered":"Che cos\u2019\u00e8 l\u2019ottone C26000? Propriet\u00e0 del materiale, formabilit\u00e0 e quando utilizzarlo"},"content":{"rendered":"<div data-page-id=\"O9L9djkOpofK3JxYWMIcLSVaneC\" data-lark-html-role=\"root\" data-docx-has-block-data=\"true\">\n<p>L'ottone C26000, noto anche come ottone per cartucce, \u00e8 una lega di rame e zinco che si distingue per la facilit\u00e0 di lavorazione a freddo, per il buon equilibrio tra resistenza meccanica e per la resistenza alla corrosione. Il C26000 non viene scelto per la lavorazione ad alta velocit\u00e0 come invece avviene per gli ottoni a taglio facile. Viene invece preferito per operazioni di formatura, piegatura e imbutitura profonda.<\/p>\n<p>Questo articolo illustra le propriet\u00e0 fisiche, la lavorabilit\u00e0 e gli impieghi ingegneristici pi\u00f9 comuni dell'ottone C26000. Aiuta ingegneri e progettisti a capire quando rappresenta la scelta migliore rispetto ad altre leghe di ottone, in base alle loro caratteristiche di fabbricazione e alle loro prestazioni.<\/p>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Che cos\u2019\u00e8 l\u2019ottone C26000? Definizione, classificazione e norme<\/span><\/h2>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Definizione dei materiali e famiglia di leghe<\/span><\/h3>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">L'ottone C26000 \u00e8 una lega di rame e zinco composta da circa 70% di rame e 30% di zinco. Dal punto di vista metallurgico, si tratta di un tipo di ottone alfa (\u03b1). Ci\u00f2 significa che la sua microstruttura \u00e8 costituita da un'unica soluzione solida duttile di zinco in rame.<\/span><\/p>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u00c8 proprio questa struttura monofasica a rendere il C26000 cos\u00ec facile da lavorare a freddo. Il C26000 pu\u00f2 subire deformazioni plastiche significative, come l\u2019imbutitura profonda e la laminazione, senza bisogno di ricotture intermedie, a differenza degli ottoni duplex (\u03b1+\u03b2).<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">I vantaggi del rapporto 70\/30:<\/span><\/strong><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Ancora rame:<\/span><\/strong><span class=\"ng-star-inserted\"> Lo rende pi\u00f9 flessibile e resistente alla corrosione.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Contenuto di zinco:<\/span><\/strong><span class=\"ng-star-inserted\"> Rafforza la soluzione solida mantenendone la forma.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Il risultato \u00e8 un materiale che rientra nella categoria degli ottoni orientati alla formatura, non in quella dei gradi per la lavorazione meccanica.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Standard e denominazioni nel mondo<\/span><\/h3>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Il C26000 \u00e8 ampiamente utilizzato, il che garantisce l'uniformit\u00e0 delle catene di approvvigionamento in tutto il mondo.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Tabella 1: Standard globali per C26000<\/span><\/strong><\/p>\n<div class=\"table-container ng-star-inserted\">\n<table>\n<tbody>\n<tr class=\"table-header ng-star-inserted\">\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Regione \/ Sistema<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Nome<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Note<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">UNS (Unificato)<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">C26000<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u00c8 l'identificatore principale per il Nord America.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">ASTM<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">B36 \/ B19<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u00c8 la norma di riferimento per barre laminate, lamiere, piastre e nastri.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">CDA<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Lega 260<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Nel settore \u00e8 noto anche come \u201cottone per cartucce\u201d.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">ISO \/ EN<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">CuZn30 \/ CW505L<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u00c8 l'equivalente europeo.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">C26000: Composizione chimica dell'ottone e ruolo metallurgico<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">La composizione chimica semplice e binaria del C26000 ne determina l'efficacia. Non contiene piombo (Pb), elemento importante per la formatura ma che complica la lavorazione meccanica.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Tabella 2: Composizione chimica tipica (wt.%)<\/span><\/strong><\/p>\n<div class=\"table-container ng-star-inserted\">\n<table>\n<tbody>\n<tr class=\"table-header ng-star-inserted\">\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Elemento<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Intervallo tipico<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Ruolo ingegneristico<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Rame (Cu)<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">68.5 \u2013 71.5%<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Garantisce duttilit\u00e0, conducibilit\u00e0 termica e resistenza alla corrosione.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Bilancio dello zinco (Zn)<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">(circa 30%)<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Il principale elemento di lega che conferisce maggiore resistenza e durezza.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Piombo (Pb)<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u2264 0,07%<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Questo livello viene mantenuto basso di proposito per rendere il materiale pi\u00f9 flessibile ed evitare che si creino crepe durante la formatura.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Ferro (Fe)<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u2264 0,05%<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Una piccola quantit\u00e0 di impurit\u00e0 che viene mantenuta sotto controllo per impedire che i bordi dei grani diventino fragili.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Perch\u00e9 \u00e8 importante un basso contenuto di piombo<\/span><\/h3>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">La differenza principale tra il C26000 e il C36000 \u00e8 la quantit\u00e0 di piombo presente a livelli tracciabili (&lt;0,07%).<\/span><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Formabilit\u00e0:<\/span><\/strong><span class=\"ng-star-inserted\"> La lega presenta una matrice duttile continua che non compromette la struttura granulare, consentendo cos\u00ec di sottoporla a una profonda trafilatura senza che si lacerino.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Conformit\u00e0:<\/span><\/strong><span class=\"ng-star-inserted\"> Grazie alla sua composizione a basso contenuto di piombo, il C26000 \u00e8 conforme a numerose normative RoHS e relative all\u2019acqua potabile che vietano l\u2019uso di ottoni contenenti piombo.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Compromessi nella lavorazione:<\/span><\/strong><span class=\"ng-star-inserted\"> L'assenza di piombo rende i trucioli lunghi e filamentosi e aumenta le forze di taglio, il che rende questo materiale meno adatto alla tornitura CNC ad alte velocit\u00e0.<\/span><\/p>\n<\/li>\n<\/ul>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Propriet\u00e0 meccaniche dell'ottone C26000 (in base al grado di tempra)<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">La resistenza del C26000 \u00e8 determinata principalmente dalla lavorazione a freddo (tempera), a differenza delle leghe trattabili termicamente come l\u2019acciaio o l\u2019alluminio. Gli ingegneri devono scegliere la giusta tempera per trovare il giusto equilibrio tra resistenza e formabilit\u00e0.<\/span><\/p>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Limite di snervamento, resistenza alla trazione e allungamento<\/span><\/h3>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Le propriet\u00e0 variano notevolmente a seconda dell'entit\u00e0 della laminazione a freddo.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Tabella 3: Propriet\u00e0 meccaniche in base al trattamento termico (ASTM B36)<\/span><\/strong><\/p>\n<div class=\"table-container ng-star-inserted\">\n<table>\n<tbody>\n<tr class=\"table-header ng-star-inserted\">\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Condizione<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Resistenza alla trazione (MPa)<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Resistenza allo snervamento (MPa)<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Allungamento (%)<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Caso d'uso ottimale<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">O60 Ricottura dolce<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">300\u2013330<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">75-100<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">45\u201355%<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Imbutitura profonda, rullatura e formatura complessa.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">H01 1\/4 Duro<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">~340\u2013380<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">~150\u2013190<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">35\u201345%<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Flessibilit\u00e0 moderata con una certa rigidit\u00e0 strutturale.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">H02 1\/2 Duro<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">~390\u2013440<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">~250\u2013310<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">20\u201330%<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Pezzi stampati che richiedono propriet\u00e0 simili a quelle delle molle.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">H04 Duro<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">~480\u2013540<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">~360\u2013410<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">5\u201310%<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Molle piatte e contatti elettrici (senza grandi deformazioni).<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Approfondimento ingegneristico:<\/span><\/strong><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Resistenza contro duttilit\u00e0:<\/span><\/strong><span class=\"ng-star-inserted\"> Con l'aumentare della lavorazione a freddo (da O60 a H04), la resistenza aumenta, mentre la duttilit\u00e0 diminuisce.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Regola per la scelta:<\/span><\/strong><span class=\"ng-star-inserted\"> Per gli stampi per imbutitura profonda, utilizzare materiale ricotto (O). Per staffe o contatti che devono mantenere la propria forma, utilizzare H02 (semi-duro).<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Rigidit\u00e0 e durezza<\/span><\/h3>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">L'intervallo di durezza va da Rockwell F 55 (ricotto) a Rockwell B 77 (duro).<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Modulo di elasticit\u00e0: ~110 GPa. (Pi\u00f9 morbido dell'acciaio, ma pi\u00f9 rigido dell'alluminio).<\/span><\/p>\n<\/li>\n<\/ul>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Propriet\u00e0 fisiche e termiche che gli ingegneri dovrebbero tenere in considerazione<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Oltre alla resistenza meccanica, le propriet\u00e0 fisiche del C26000 determinano le sue prestazioni nelle applicazioni elettriche e termiche.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Tabella 4: Caratteristiche fisiche<\/span><\/strong><\/p>\n<div class=\"table-container ng-star-inserted\">\n<table>\n<tbody>\n<tr class=\"table-header ng-star-inserted\">\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Propriet\u00e0<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Valore<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Importanza ingegneristica<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Densit\u00e0<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">8,53 g\/cm\u00b3<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u00c8 pi\u00f9 pesante dell\u2019acciaio, il che incide sul peso di spedizione e sull\u2019inerzia.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Conduttivit\u00e0 termica<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">~120 W\/m\u00b7K<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u00c8 un'ottima soluzione per dissipare il calore all'interno dei quadri elettrici.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Conducibilit\u00e0 elettrica<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">28% IACS<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u00c8 ideale per connettori e terminali perch\u00e9 garantisce un equilibrio ottimale tra resistenza e conduttivit\u00e0.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Coefficiente di espansione termica<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">~20 \u00b5m\/m\u00b7\u00b0C<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Si dilata pi\u00f9 dell\u2019acciaio, il che \u00e8 molto importante per gli assemblaggi bimetallici.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Formabilit\u00e0 e comportamento alla lavorazione a freddo<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">La formatura a freddo si basa sulla lega C26000. La sua struttura alfa monofasica le consente di piegarsi senza rompersi, cosa che invece accadrebbe con altre leghe.<\/span><\/p>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Capacit\u00e0 di imbutitura profonda<\/span><\/h3>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Il C26000 \u00e8 noto per il suo impiego nella produzione di bossoli (da cui il nome), poich\u00e9 pu\u00f2 essere trafilato in cilindri profondi e a pareti sottili in un\u2019unica fase o con un minimo ricottura.<\/span><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Meccanismo:<\/span><\/strong><span class=\"ng-star-inserted\"> La lega si indurisce abbastanza lentamente da consentire al materiale di fluire nello stampo senza strappi n\u00e9 restringimenti in un punto specifico.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Processo:<\/span><\/strong><span class=\"ng-star-inserted\"> Richiede presse molto pesanti e un tipo di lubrificazione adeguato.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Piegatura e stampaggio<\/span><\/h3>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Raggio di curvatura:<\/span><\/strong><span class=\"ng-star-inserted\"> Il C26000 pu\u00f2 essere piegato di 180\u00b0 su se stesso (raggio zero) senza rompersi quando si trova allo stato ricotto o allo stato 1\/4 Hard.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Ritorno elastico:<\/span><\/strong><span class=\"ng-star-inserted\"> L'indurimento da deformazione prevedibile garantisce che gli stampi di stampaggio tornino sempre alla forma originale nello stesso modo.<\/span><\/p>\n<\/li>\n<\/ul>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Lavorabilit\u00e0: in quali ambiti il C26000 offre buone prestazioni \u2014 e in quali no<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Il C26000 non \u00e8 un ottone facile da tagliare. Pu\u00f2 essere lavorato solo nel 30% dei casi (il C36000 pu\u00f2 essere lavorato nel 100% dei casi).<\/span><\/p>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Perch\u00e9 \u00e8 difficile da lavorare<\/span><\/h3>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Comportamento \"gommoso\":<\/span><\/strong><span class=\"ng-star-inserted\"> Il metallo si trascina e si lacera invece di cedere in modo netto, poich\u00e9 \u00e8 molto duttile.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Preparazione delle patatine:<\/span><\/strong><span class=\"ng-star-inserted\"> Produce trucioli lunghi e filamentosi che possono avvolgersi attorno all'utensile (formando una sorta di \"nido d'uccello\"), quindi \u00e8 necessario fermarsi spesso per rimuoverli.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Usura degli utensili:<\/span><\/strong><span class=\"ng-star-inserted\"> Rispetto all'ottone al piombo, forze di taglio pi\u00f9 elevate generano un maggiore accumulo di calore e una pi\u00f9 rapida usura degli utensili.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Quando lavorare il C26000<\/span><\/h3>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u00c8 indicato per:<\/span><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Operazioni secondarie:<\/span><\/strong><span class=\"ng-star-inserted\"> Foratura o maschiatura di fori in un pezzo stampato.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Volume ridotto:<\/span><\/strong><span class=\"ng-star-inserted\"> Lavori di prototipazione in cui il tempo di ciclo non \u00e8 rilevante.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Suggerimento:<\/span><\/strong><span class=\"ng-star-inserted\"> Per evitare la formazione di trucioli filamentosi, utilizzare rompitrucioli sugli inserti in carburo e cicli di foratura a picchiettamento aggressivi durante la foratura.<\/span><\/p>\n<\/li>\n<\/ul>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Resistenza alla corrosione e limitazioni ambientali<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Il C26000 \u00e8 molto resistente alla corrosione in condizioni atmosferiche normali, ma presenta comunque alcuni punti deboli.<\/span><\/p>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Prestazioni complessive<\/span><\/h3>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Non si arrugginisce facilmente in acqua dolce, nell\u2019aria secca o nella maggior parte delle sostanze chimiche organiche. Con il passare del tempo, forma una patina protettiva di ossido di colore marrone o verde.<\/span><\/p>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Rischi di guasto: SCC e dezincificazione<\/span><\/h3>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Dezincificazione:<\/span><\/strong><span class=\"ng-star-inserted\"> Se l'acqua \u00e8 stagnante o acida, lo zinco pu\u00f2 lisciviarsi dalla lega, lasciando una spugna di rame in grado di trattenere l'acqua.<\/span><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Come soluzione, utilizzare ottoni a bassa reattivit\u00e0 (come il C46400) per l'impiego in ambiente salino.<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Fessurazione da corrosione sotto sforzo (SCC):<\/span><\/strong><span class=\"ng-star-inserted\"> \u00c8 molto probabile che il C26000 si crepi in presenza di ammoniaca e di sollecitazioni di trazione.<\/span><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Per evitare che ci\u00f2 accada, i componenti vengono sottoposti a un trattamento di distensione dopo la formatura (ricottura a bassa temperatura) per eliminare eventuali tensioni residue.<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Prodotti tipici e applicazioni industriali<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Quando la forma e la qualit\u00e0 della superficie sono i fattori pi\u00f9 importanti, il C26000 \u00e8 la scelta migliore.<\/span><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Munizioni:<\/span><\/strong><span class=\"ng-star-inserted\"> Bossoli (l'uso principale).<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Impianto idraulico:<\/span><\/strong><span class=\"ng-star-inserted\"> Sifoni per lavelli, aeratori per rubinetti e dadi per giunti scorrevoli.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Componenti elettrici<\/span><\/strong><span class=\"ng-star-inserted\"> tra cui portalampade, involucri filettati, morsetti e contatti a molla.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Hardware<\/span><\/strong><span class=\"ng-star-inserted\"> comprende cerniere, pomelli, rosette e battiscopa.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Radiatori e serbatoi delle automobili (poich\u00e9 sono in grado di condurre il calore e possono essere modellati).<\/span><\/p>\n<\/li>\n<\/ul>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">C26000 rispetto ad altre leghe di ottone (linee guida per la scelta)<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Per scegliere l'ottone giusto, \u00e8 necessario abbinare la lega al tipo di lavorazione.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Tabella 5: C26000 e altre opzioni<\/span><\/strong><\/p>\n<div class=\"table-container ng-star-inserted\">\n<table>\n<tbody>\n<tr class=\"table-header ng-star-inserted\">\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Caratteristica<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">C26000 (cartuccia)<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">C36000 (a taglio facile)<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">C26800 (ottone giallo)<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Processo principale<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Imbutitura profonda e formatura<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Lavorazione CNC<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Stampaggio generale<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Lavorabilit\u00e0<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Non va bene (30%)<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Ottimo (100%)<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Fiera<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Formabilit\u00e0<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Ottimo (Il migliore)<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Cattivo (fragile)<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Molto buono<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Contenuto principale<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Molto basso<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Basso<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Moderato<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Costo<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Moderato<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Moderato<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Moderato<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Criteri di scelta:<\/span><\/strong><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Il pezzo \u00e8 stampato o imbutito? -&gt; Utilizzare <\/span><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">C26000<\/span><\/strong><span class=\"ng-star-inserted\">.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Il pezzo CNC \u00e8 stato tornito? -&gt; Utilizzare <\/span><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">C36000<\/span><\/strong><span class=\"ng-star-inserted\">.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Si tratta di una semplice lamiera piegata? -&gt; Utilizzare <\/span><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">C26800<\/span><\/strong><span class=\"ng-star-inserted\">, che spesso \u00e8 pi\u00f9 economico e pi\u00f9 facile da trovare in fogli.<\/span><\/p>\n<\/li>\n<\/ul>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Sintesi \u2014 Punti chiave dal punto di vista ingegneristico<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Quando si parla di formatura a freddo, l'ottone C26000 \u00e8 il migliore. Non si tratta di una lega per uso generico, bens\u00ec di un materiale speciale destinato a componenti che devono subire notevoli deformazioni durante il processo di produzione.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Punti importanti:<\/span><\/strong><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Utilizzare il C26000 per gusci imbutiti, occhielli e pezzi stampati complessi.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Scegli il grado di tempra: \u201cRicotto\u201d \u00e8 indicato per la formatura, mentre \u201cSemi-duro\u201d \u00e8 indicato per garantire maggiore rigidit\u00e0.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Non utilizzare la lavorazione CNC per i pezzi lavorati al tornio; i trucioli lunghi rallenteranno la produzione. Utilizza invece il C36000.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Attenzione all\u2019ammoniaca: assicurarsi che i componenti siano stati sottoposti a trattamento di distensione se potrebbero entrare in contatto con detergenti contenenti ammoniaca.<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Gli ingegneri possono ottenere forme complesse con elevata affidabilit\u00e0 e ottime finiture superficiali, adattando il C26000 a progetti che richiedono un elevato grado di formatura.<\/span><\/p>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">FAQ<\/span><\/h2>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">D: \u00c8 facile lavorare l'ottone C26000?<\/span><\/strong><br class=\"ng-star-inserted\" \/><span class=\"ng-star-inserted\">A: No. Ha un indice di lavorabilit\u00e0 pari a 30%. Produce trucioli lunghi e appiccicosi, difficili da gestire. \u00c8 possibile lavorarlo, ma per una produzione veloce ed efficiente \u00e8 necessario utilizzare il C36000.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">D: Qual \u00e8 la resistenza del C26000 quando viene sottoposto a trazione?<\/span><\/strong><br class=\"ng-star-inserted\" \/><span class=\"ng-star-inserted\">A: Dipende dal tipo di trattamento. Morbido (ricotto): ~300 MPa (44 ksi). Duro (H04): circa 500 MPa (72 ksi). Indicare sempre il tipo di trattamento sul disegno.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">D: \u00c8 possibile saldare il C26000?<\/span><\/strong><br class=\"ng-star-inserted\" \/><span class=\"ng-star-inserted\">A: S\u00ec, ma soprattutto brasatura forte e brasatura dolce. La saldatura ossiacetilenica \u00e8 possibile, ma la saldatura ad arco \u00e8 difficile perch\u00e9 lo zinco vaporizza troppo rapidamente (fumi). La brasatura dolce \u00e8 ottima.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">D: Il modello C26000 pu\u00f2 essere utilizzato in acqua salata?<\/span><\/strong><br class=\"ng-star-inserted\" \/><span class=\"ng-star-inserted\">A: No, di solito. Nell\u2019acqua di mare tende a perdere zinco. Per i componenti nautici, utilizzare bronzo di alluminio o ottone navale (C46400).<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">D: Il C26000 \u00e8 privo di piombo?<\/span><\/strong><br class=\"ng-star-inserted\" \/><span class=\"ng-star-inserted\">A: S\u00ec, ma solo in quantit\u00e0 molto ridotte (meno di 0,07%). A differenza del C36000, spesso rispetta le norme relative all\u2019assenza di piombo. Controlla i certificati specifici dei laminatoi per assicurarti che siano tutti in regola.<\/span><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>L'ottone C26000, noto anche come ottone per cartucce, \u00e8 una lega di rame e zinco che si distingue per la facilit\u00e0 di lavorazione a freddo, per il buon equilibrio tra resistenza meccanica e per la resistenza alla corrosione.<\/p>","protected":false},"author":1,"featured_media":9810,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[103],"tags":[],"class_list":["post-9721","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-materials-guide"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.5 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>C26000 Brass: Properties, Formability &amp; Uses<\/title>\n<meta name=\"description\" content=\"Engineering overview of C26000 brass, covering mechanical properties, formability, corrosion resistance, joining behavior, and typical applications in fabricated parts.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.cncmachiningshops.com\/it\/c26000-brass\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Is C26000 Brass? 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