1. A S T M A513 - 08a Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing n. s7 |0 a( k6 p. 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 Shapes9 X4 a1 I( l( D7 S0 L7 I
% z4 D4 o- | ^' t) r+ n+ H3. 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.9 M# M4 z2 ^& `% |# E6 ?
2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing; P, y/ y8 @2 @' h. `
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- P( j- B$ g. }4 v& e
2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing4 k" ?6 o, M8 l1 ]8 a
3. ... $ K+ M. Y# Q7 i9 @$ k" m: {dljdw 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：# G5 J- n+ I9 P7 e9 I
A S T M A554 - 11 Standard Specification for Welded Stainless Steel Mechanical Tubing/ ~% a# D) [0 u7 O
无缝不锈钢方管： ( w, T; v3 a9 j" p2 b k+ s( PA 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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