1. A S T M A513 - 08a Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing - m3 @! {( \3 Y# W0 t: @ ) u1 E, C' m2 i3 e! ?2. A S T M A500 / A500M - 10a Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes6 C# V+ T# G6 V( {
: Z, V! h% }5 _8 k/ q8 z+ v3. 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 X# f" m) e- A2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing 1 V4 f* T! y' o! Z3 X: H3. 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. * F5 Q* |4 B: r8 B- [2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing * m4 a; ~; e7 V8 n) l3. ...1 L" F' G2 U9 K' t7 d L3 p$ c' X
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：8 }/ w; w5 x7 |. j v6 ?
A S T M A554 - 11 Standard Specification for Welded Stainless Steel Mechanical Tubing ; Q. Z2 q; j5 p$ k! w6 F4 d, Q无缝不锈钢方管： / b9 o5 D$ T3 b7 ^. k. @' L, LA 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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