C7521(Bzn18-18)白铜
白铜是以镍为主要添加元素的铜基合金,呈银白色,有金属光泽,故名白铜。铜镍之间彼此可无限固溶形成连续固溶体,即不论彼此的比例多少,而恒为α--单相合金。当把镍熔入红铜里,含量超过16%以上时,产生的合金色泽就变得洁白如银,镍含量越高,颜色越白。白铜中镍的含量一般为25%。
牌号:C7521(Bzn18-18)
俗称:洋白铜
标准:GB/T13808-1992
应用:
产品广泛用于电器、电子、电力、汽车、通讯、五金等行业,如变压器铜带、引线框架材料带、射频电缆带、太阳能光伏铜带、高炉用铜冷却壁板、含银无氧铜板、电子接插件铜带、模具电极铜板、乐器铜板等。
化学成份:
铜Cu:余量 锡Sn:≤0.2 锌Zn:≤0.6 铅Pb:≤0.05 铅Pb:≤0.05 硼P:≤0.1 镍Ni:5.0~6.5 铝Al:10.0~11.5 铁Fe:5.0~6.5 锰Mn:≤0.5 硅Si:≤0.2 注:≤1.5(杂质)
力学性能:
材料状态:H
合金标记:C7521R-H
拉力试验:厚度/mm:≥0.2-≤5
抗拉强度/Mpa:≥540伸长率/%:≥3
弯曲试验:厚度/mm:≤1.6
弯曲角度:未测内侧半径:厚度的2倍
弹性极限值试验:厚度/mm:未测
弹性极限值KB0.075/Mpa:未测
硬度试验:厚度/mm:≥0.15维氏HV(≥0.5):≥150
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℃
c7701(Bzn18-26)白铜
c7701(Bzn18-26)白铜具有美丽的光泽,还具有一定深冲,优良的冷加工性和延展性,耐腐蚀,耐疲劳性强,加工成形性能和可焊性好,具有较好的电学性能,力学性能,防辐射屏蔽性能。有高的力学性能,良好的铸造性能和可切削性能,在空气、淡水和海水中耐蚀性较好,有应力腐蚀开裂倾向。
C7701P-3/4H C7701R-1/2H C7701P-1/2H C7701R-1/4H C7701P-1/4H C7701R-O C7701P-O C7541R-SH C7541P-SH C7541R-EH C7541P-EH C7541R-H C7541P-H C7541R-3/4H C7541P-3/4H C7541R-1/2H C7541P-1/2HC7541R-1/4H C7541P-1/4H C7541R-O C7541P-O C7521R-SH C7521P-SH C7521R-EH C7521P-EH C7521R-H C7521P-H C7521R-3/4H C7521P-3/4H C7521R-1/2H C7521P-1/2H C7521R-1/4H C7521P-1/4H C7521R-O C7521P-OC2801R-EH C2801P-EH C2801R-H C2801P-H C2801R-3/4H C2801P-3/4H C2801R-1/2H C2801P-1/2H C2801R-1/4H C2801P-1/4H C2801R-O C2801P-O C2680R-SH C2680P-SH C2680R-EH C2680P-EH C2680R-H C2680P-H C2680R-3/4H C2680P-3/4H C2680R-1/2H C2680P-1/2H C2680R-1/4H C2680P-1/4H C2680R-O C2680P-O C2600R-SH C2600P-SH C2600R-EH C2600P-EHC2600R-H C2600P-H C2600R-3/4H C2600P-3/4H C2600R-1/2H C2600P-1/2H C2600R-1/4H C2600P-1/4H C2600R-O C2600P-O C1220R-H C1220P-H C1220R-1/2H C1220P-1/2H C1220R-1/4H C1220P-1/4H C1201R-H C1201P-H C1201R-1/2H C1201P-1/2H C1201R-1/4H C1201P-1/4H C1201R-O C1201P-O C1100R-H C1100P-H C1100R-1/2H C1100P-1/2H C1100R-1/4H C1100P-1/4H C1100R-O C1100P-O C1020R-H C1020P-H C1020R-1/2H C1020P-1/2H C1020R-1/4H C1020P-1/4H C1020R-O C1020P-O、