1. A S T M A513 - 08a Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing 6 S. p8 B# m M" O1 x$ Q; }4 \9 g( e% t+ F( v
2. A S T M A500 / A500M - 10a Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes ; y: J& K- p3 o2 i& h - {# ]8 Q3 B9 f. e6 `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. # R! w/ W4 j$ i& q e6 l2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing $ z& P( g( C0 `' M9 [0 U0 _; }/ `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. ) p; g; y. ]+ R7 `( j" W1 T! ~3 O- p2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing. X0 R0 H1 I% {7 p- G
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dljdw 发表于 2011-12-15 16:44 http://www.3dportal.cn/discuz/images/common/back.gif
有缝不锈钢方管：1 k: L8 r3 c$ z% ]# J
A S T M A554 - 11 Standard Specification for Welded Stainless Steel Mechanical Tubing e3 U/ w: t8 T7 f& Q6 d
无缝不锈钢方管：2 W8 I. V' U! f. P A O
A S T M A511 / A511M - 11 Standard Specification for Seamless Stainless Steel Mechanical Tubing
非常感谢dljdw,) q4 a5 z% @; K" q- V2 ^. o) f
美标不锈钢无缝方管的标准号应为：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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