1. A S T M A513 - 08a Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing " R, y; N3 I1 n: o- Q9 _' W1 o7 M" c1 G0 A6 Y
2. A S T M A500 / A500M - 10a Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes& B& Y2 Z7 I+ i- j9 l( {
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3. 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 y; A+ Y- f0 Y# J+ \) s
2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing 7 J. \( _9 \' h3 o; N3. 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. # E; X, F8 X2 U) i0 P* A2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing + Q) }/ y- o- O( K# G3 S0 q3. ...! U: O5 p& } H! Y* [
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： ) `' b. x. f( w5 j6 w6 xA S T M A554 - 11 Standard Specification for Welded Stainless Steel Mechanical Tubing/ n1 g0 f3 ?8 L
无缝不锈钢方管： $ c1 r# ~- v9 ?+ i9 D4 }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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