体彩排列5质合遗漏

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20#无缝钢管



20#无缝钢管为低碳钢管,碳钢一般分为低碳钢、中碳钢和高碳钢三种,其中45#钢为中碳钢,低于45#即为低碳钢,高于45#即为高碳钢,无缝钢管如没有特殊要求,一般均采用20#无缝钢管。

CHENGFEN

HUAXUECHENGFEN:

TAN C :0.17%~0.2% GUI Si:0.17%~0.37% MENG Mn:0.35%~0.65% LIU S :≤0.035% LIN P :≤0.035% GE Cr:≤0.25% NIE Ni:≤0.25% TONG Cu:≤0.25%

LIXUEXINGNENG:

体彩排列5质合遗漏KANGLAQIANGDU σb (MPa):≥410(42)QUFUQIANGDUσs (MPa):≥245(25)SHENZHANGLV δ (%):≥25DUANMIANSHOUSUOLV ψ (%):≥5,YINGDU :WEIRECHULI,≤156HB,SHIYANGCHICUN:SHIYANGCHICUN25mm

RECHULIGUIFANJIJINXIANGZUZHI:

RECHULIGUIFAN:ZHENGHUO,910℃,KONGLENG。JINXIANGZUZHI:TIESUTI+ZHUGUANGTI。

体彩排列5质合遗漏JIAOHUOZHUANGTAI:YIBURECHULIHUORECHULI(TUIHUO、ZHENGHUOHUOGAOWENHUIHUO)ZHUANGTAIJIAOHUO。YAOQIURECHULIZHUANGTAIJIAOHUODEYINGZAIHETONGZHONGZHUMING,WEIZHUMINGZHEANBURECHULIJIAOHUO。




江苏20#无缝钢管 浙江20#无缝钢管