眾所周知，黃銅是有銅和鋅所組成的合金，有時候我們也會叫它銅合金材質。黃銅的好與壞其實就是看材料中的黃銅含量比例高與低。小編針對這個問題整理了普通黃銅與特殊黃銅的區別：
普(pu)(pu)通(tong)黃銅(tong)(tong)(tong)是(shi)有銅(tong)(tong)(tong)和鋅(xin)組合(he)而成(cheng)。鋅(xin)含(han)(han)(han)量(liang)是(shi)普(pu)(pu)通(tong)黃銅(tong)(tong)(tong)的一個分水嶺，當(dang)含(han)(han)(han)鋅(xin)量(liang)小(xiao)(xiao)于(yu)39%時(shi)，鋅(xin)能(neng)溶于(yu)銅(tong)(tong)(tong)內(nei)形成(cheng)單相(xiang) a ，稱單相(xiang)黃銅(tong)(tong)(tong) ，塑性好(hao)，適(shi)于(yu)冷熱(re)加壓(ya)加工(gong)；而當(dang)含(han)(han)(han)鋅(xin)量(liang)大于(yu)39%時(shi)，有 a 單相(xiang)還有以(yi)銅(tong)(tong)(tong)鋅(xin)為基(ji)的 b 固溶體，稱雙相(xiang)黃銅(tong)(tong)(tong)， b 使(shi)塑性小(xiao)(xiao)而抗拉強度上升，只適(shi)于(yu)熱(re)壓(ya)力加工(gong)。在(zai)實際操(cao)作(zuo)中(zhong)，我們(men)時(shi)常會(hui)看(kan)到(dao)H68這種代號(hao)，其(qi)實就是(shi)表達了(le)該材質銅(tong)(tong)(tong)含(han)(han)(han)量(liang)為68%，鋅(xin)含(han)(han)(han)量(liang)32%。而我們(men)有時(shi)候(hou)還會(hui)看(kan)到(dao)帶“Z”的代號(hao)，如ZH62，其(qi)實“Z”代表鑄造。
擴展閱讀：不銹鋼材質
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