1. A S T M A513 - 08a Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing # _3 j. K/ ~7 b9 w, K6 u 3 N1 y1 L4 P8 Y+ @; b& V2. A S T M A500 / A500M - 10a Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes ( b& R1 K/ `* a; }) b# h" a 3 M% ^" r" u4 }) `9 L# W8 M3. 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. ( z$ M% i1 t/ `) o; M2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing 7 J' M1 P5 z; ]! d* b r7 L0 V3. 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. ( V) U3 C# t8 Z9 n6 r: y2. A S T M A 554 Standard Specification for Welded Stainless Steelk Mechanical Tubing - C" @/ r$ d0 y2 t3. ... $ Y" G6 o( w% `. `+ D6 d& o: ydljdw 发表于 2011-12-15 16:44 http://www.3dportal.cn/discuz/images/common/back.gif
6 t8 i0 n0 J8 v 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: , |) Z5 v+ e" {# BA S T M A554 - 11 Standard Specification for Welded Stainless Steel Mechanical Tubing ' ~8 D8 ]3 y/ r' ~: g: m无缝不锈钢方管:1 c' t# K9 s$ }3 i ]. @
A S T M A511 / A511M - 11 Standard Specification for Seamless Stainless Steel Mechanical Tubing