尺寸和重量公差Tolerances

1、結(jié)構(gòu)管STRUCTURAL TUBE1、圓管ROUND STRUCTURAL TUBEl 標(biāo)準(zhǔn)Standard：ASTM A53Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamlessl 規(guī)格Size：外徑Outside Diameter壁厚Wall Thickness219627383258.53569406104571950812609.610.3l 長度Length：618m。l 尺寸和重量公差Tolerances for Dimension and Wei

2、ght：項(xiàng)目Item公差Tolerance重量Weight±10%外徑Side Length±1%壁厚Wall Thickness-12.5%l 力學(xué)性能Mechanical Property：鋼級(jí)Grade屈服強(qiáng)度（MPa）Yield Strengthmin抗拉強(qiáng)度（MPa）Tensile StrengthminA53 A205330A53 B240415l 化學(xué)成分Chemical Composition（）：鋼級(jí)GradeCmaxMnmaxPmaxSmaxCumaxNimaxCrmaxMomaxVmaxA53 A0.250.950.050.0450.400.400.4

3、00.150.08A53 B0.301.200.050.0450.400.400.400.150.082、方管、矩形管SQUARE AND RECTANGULAR STRUCTURAL TUBEl 標(biāo)準(zhǔn)Standard：JIS G3466Carbon Steel Square Pipes for General Structural Purposesl 規(guī)格Size：邊長（mm）Side Length壁厚（mm）Wall Thickness175×1756250×2508300×3006400×40012450×45018220×14

4、08320×20010400×20016500×30012.5500×40012.5l 長度Length：612m。l 尺寸公差Tolerances for Dimension：項(xiàng)目Item公差Tolerance邊長Side Length±1.5%凹凸度Unevenness of Flat Plate Portion of Each Side小于邊長的0.5%Within 0.5% of Side Length傾斜度Angularity Made by Adjacent Flat Plate Portions±1.5°圓角半徑SDimension at Corner: S3t定尺管長度Length-0+10mm直度Unstraightness小于管長的0.3%Within 0.3% of Whole Length壁厚Wall Thickness±10%l 力學(xué)性能Mechanical Property：鋼級(jí)Grade屈服強(qiáng)度（MPa）Yield Strengthmin抗拉強(qiáng)度（MPa）Tensile Strengthmin延伸率（%）ElongationminSTK R 40024540023STK R 49032549023l 化學(xué)成分Chemical Composition（）：鋼級(jí)Gra