1. A S T M A513 - 08a Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing! p( b" _+ C2 W, q2 ~) D
" k: C3 i+ e# { Y/ L2. A S T M A500 / A500M - 10a Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes3 b- e* k% h8 B. c2 I& K
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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. / z7 d( u) G2 E6 j+ r6 b2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing/ D0 m* `1 j$ j4 x; o+ o
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. 9 G; j. W% O j) S$ V" }- H* W2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing6 l7 v% U- u: \2 {5 ?0 H/ E
3. ... 1 t8 H5 C) U5 m7 ?" Sdljdw 发表于 2011-12-15 16:44 http://www.3dportal.cn/discuz/images/common/back.gif
" y- R- K) t5 S. _( ^ 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：# d% a% ^4 X+ ?6 c1 `! m8 j
A S T M A554 - 11 Standard Specification for Welded Stainless Steel Mechanical Tubing % H+ X) ]! F; w# ?: K7 s+ m5 j无缝不锈钢方管： 1 x2 f8 P( q$ B* G0 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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