LEAD- AND ANTIMONY-FREE BRASS ALLOY

To provide a lead- and antimony-free brass alloy that shows little hot embrittlement and can be processed by hot forming, particularly a continuous casting process.SOLUTION: A brass alloy that is lead- and antimony-free contains following elements: Cu: 56% or more and 66% or less, Mg: 0.1% or more and 1.5% or less, Pb: less than 0.1%, and Zn and inevitable impurities: a balance. The brass alloy may contain less than 0.15% of As, and/or less than 0.15% of P, and/or less than 0.1% of Al, and/or less than 0.1% of Sn.SELECTED DRAWING: Figure 4 【課題】熱脆性をほとんど示さず、熱間成形、特に連続鋳造プロセスによって処理され得る鉛非含有アンチモン非含有の黄銅合金を提供する。【解決手段】以下の元素：Ｃｕ：５６％以上６６％以下Ｍｇ：０．１％以上１．５％以下Ｐｂ：０．１％未満Ｚｎ及び不可避的不純物：残部を含む、鉛非含有アンチモン非含有の黄銅合金。前記黄銅合金は、０．１５％未満のＡｓ及び／又は０．１５％未満のＰ及び／又は０．１％未満のＡｌ及び／又は０．１％未満のＳｎを含んでもよい。【選択図】図４