1. A S T M A513 - 08a Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing0 O( V3 T5 ~ B/ `0 F
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2. A S T M A500 / A500M - 10a Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes . ~0 t# m5 i( D- T2 d7 v ! ?! T0 P5 |* P2 c+ Z2 K% E3. A S T M A501 - 07 Standard Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing
1. A S T M A 270 Standard Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing. " {" m- L* F4 [2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing 0 T. u* E* q" B* k; I# {8 [9 [3. A S T M A269－2007 普通设备用无缝和焊接奥氏体不锈钢管标准规范
1. A S T M A 270 Standard Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing. + B% T4 i/ Y; f! Q2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing. U- E8 q& t/ s# E
3. ... 7 Q& f6 y8 r# C$ D) _- Ndljdw 发表于 2011-12-15 16:44 http://www.3dportal.cn/discuz/images/common/back.gif
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上述标准好像还不能说明为美标不锈钢无缝方管的标准号。还有更好的说明或标准吗？谢谢！
有缝不锈钢方管： 1 f- i( _' P( mA S T M A554 - 11 Standard Specification for Welded Stainless Steel Mechanical Tubing3 C4 t. k# z' ]9 B4 H
无缝不锈钢方管：! m/ H4 r9 D" G$ k5 n* d& ]
A S T M A511 / A511M - 11 Standard Specification for Seamless Stainless Steel Mechanical Tubing
发表于 2011-11-24 08:36:59
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