又爽又黄无遮挡高潮视频网站,久久精品人妻一区二区三区,粗壮挺进人妻水蜜桃成熟漫画,日韩人妻无码精品无码中文字幕

牌號 c37100鉛黃銅六角棒

中國isc hpb61-1

對應標準 gb /t 5231-2012

加工銅及銅合金牌號和化學成分

說明 范圍：

①本標準規(guī)定了加工銅及銅合金的牌號和化學成分

②本標準適用于以壓力加工方法生產的銅及銅合金加工產品及其所用的鑄錠和坯料

c37100化學元素 成分含量(％)

成分 fe cu pb zn

最 小值 - 58 0.6 36.1

最 大 值 0.15 62 1.2 41.4

gb c37100 gb/t 5231 mechanical

yield tensile impact elongation reduction in cross section on fracture as-heat-treated condition brinell hardness (hbw)

rp0.2 (mpa) rm (mpa) kv/ku (j) a (％) z (％)

252 (≥) 332 (≥) 32 44 23 solution***aging, annealing, ausaging, q+t,etc 122

gb c37100 gb/t 5231 physical

physical properties of gb hpb61-1 gb/t 5231 are mainly indicated by modulus of electrical resistance value, thermal conductivity, specific thermal capacity, coefficient of thermal expansion, elasticity, poisson's ratio, density, etc.

temperature modulus of elasticity mean coefficient of thermal expansion 10-6/(°c) between 20(°c) and thermal conductivity specific thermal capacity specific electrical resistivity density poisson’s coefficient, ν

(°c) (gpa) (w/m·°c) (j/kg·°c) (ω mm2/m) (kg/dm3)

33 - - 0.24 -

156 832 - 33.3 422 -

643 - 32 14.2 412 422

gb c37100 gb/t 5231 processing service