BZn18-26是什么材料 BZn18-26化学物质热处理规范

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材料名称：锌白铜拉制棒(硬,5～12mm)

牌号：BZn18-26

标准：GB/T 4423-1992

特性及适用范围

BZn18-26锌白铜为结构铜镍,合金其外表具有美丽的银白色，俗称德银(本来是中国银)，BZn15-20锌白铜具有高的强度和耐蚀性,可塑性好，在热态及冷态下均能很好地承受压力加工，可切削性不好，焊接性差，弹性优于QSn6.5-0.1。BZn15-20结构白铜用于潮湿，腐蚀环境中工作的零件及仪表零件，医疗器具，电讯零件，艺术品，弹簧管等。化学成份铜 Cu ：62.0～65.0镍+钴 Ni+Co：13.5～16.5锌 Zn：余量铅 Pb：≤0.02磷 P：≤0.005铁 Fe：≤0.5锰 Mn：≤0.3硅 Si ：≤0.15锑 Sb ：≤0.002硫 S ：≤0.01砷 As ：≤0.010碳 C：≤0.03铋 Bi：≤0.002镁 Mg：≤0.05注：≤0.9(杂质)力学性能抗拉强度 σb (MPa)：≥440伸长率 δ10 (%)：≥5注 ：棒材的纵向室温拉伸力学性能试样尺寸：直径或对边距离5～12热处理规范铸造温度1170℃;退火温度700～750℃;轧制热加工温度950～970℃;消除内应力的低温退火温度250℃。LED">ABSolute;top:0;border:0;width:undefinedpx;height:undefinedpx;" SANdbox="allow-forms allow-popUPS allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-top-navigation-by-user-activation" frameborder="0" src="https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-6745515041074118&ouTPUt=html&adk=1812271804&adf=3279755396&plat=1%3A32776%2C2%3A32776%2C8%3A134217728%2C9%3A134250504%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1081344%2C32%3A32&format=0x0&url=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fact%3D1&ea=0&flash=29.0.0&pra=5&wgl=1&dt=1622878102974&bpp=4&bdt=63&idt=47&shv=r20210601&cbv=%2Fr20190131&ptt=9&saldr=aa&cookie=ID%3Db6f1e878c439464d-22b9a11134c90058%3AT%3D1622862601%3ART%3D1622862601%3AS%3DALNI_MZsvRtEhRxB5zf9_mWpUmMUY3IVTg&nras=1&correlator=1971540755629&frm=23&ife=1&pv=2&ga_vid=1183029633.1622878103&ga_sid=1622878103&ga_hid=624345208&ga_fc=0&nhd=1&u_tz=480&u_his=8&u_java=0&u_h=1080&u_w=1920&u_ah=1040&u_aw=1920&u_cd=24&u_nplug=16&u_nmime=33&adx=-12245933&ady=-12245933&biw=1872&bih=909&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&oid=3&pvsid=1402128374864189&pem=545&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fadd_suc%3D1&eae=2&fc=1664&brdim=0%2C0%2C0%2C0%2C1920%2C0%2C1920%2C1040%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=32772&bc=31&ifi=1&uci=1.ft1zi2qnmsz9&fsb=1&dtd=57" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="1.ft1zi2qnmsz9" data-load-complete="true">