1. A S T M A513 - 08a Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing . ~) t7 G1 ?; ?; L ! R) Z" b2 T, o: l2. A S T M A500 / A500M - 10a Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes _2 a. H3 t) B G% Y: G$ |
7 n. B1 \, Y& z" `# q/ G0 X3. 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. % ^- W) m7 z: r& H( n" Q, p( x5 j+ g2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing & G9 e H7 B A, V0 [# [1 C3. 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.2 l/ Z0 s1 a' o0 }$ @
2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing . q& f# X# y! \& [3. ...! O9 h9 [/ k I1 W* P- s% B
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：/ [- @" v$ G! p0 r( t! d$ Z
A S T M A554 - 11 Standard Specification for Welded Stainless Steel Mechanical Tubing' ^8 x7 I- @3 \8 @
无缝不锈钢方管：& S) M2 m9 y6 }. @0 M4 ?
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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