Steel tube size deviations comparison between international standard

http://www.ts-aceroinoxidable.com

Comparison between domestic and international size deviations

尺寸（SIZE） 标准(SPECIFICATION) 外径尺寸 SIZE 外径允许偏差  PERMISSIBLE VARIATION 外径尺寸  SIZE 壁厚允许偏差  PERMISSIBLE VARIATION 尺寸  SIZE 允许偏差  PERMISSIBLE VARIATION GB/T14975-2002 [10,30] +0.30/-0.30 S≤3 (+,-)14% [1.0,30.] +15/-0 (30,50] +0.40/-0.40 S>3 (+12%/-10% D>50 (+,-)0.9% GB/T14976-2002 [6,10] +0.20/-0.20 (0.5,1.0) (+,-)0.15 +15/-0 (10,30] +0.30/-0.30 (1.0,3) (30,50] +0.40/-0.40 S>3 (+12%/-10% D>50 (+,-)0.9% GB13296-2007 [6,30] +0.15/-0.20 D≤38 +10/-0 (30,50] +0.30/-0.30 D>38 +20/-0% D>50 (+,-)0.75% +22/-0% ASTM A213 D<25.4 +0.10/-0.10 D≤38.1 +20%/-0 D<50.8 +3/-0 [25.4,38.1] +0.15/-0.15 (38.1,50.8) +0.20/-0.20 [50.8,63.5) +0.25/-0.25 D>38.1 +20%/-0 D≥50.8 +5/-0 [63.5,76.2) +0.30/-0.30 [76.2,101.6] +0.38/-0.38 (101.6,190.5] +0.38/-0.64 (190.5,228.6] +0.38/-1.14 ASTM A269 D<12.7 +0.13/-0.13 (+,-)15% +3.2/-0 [12.7,38.1] (+,-)10% [38.1,88.9) +0.25/-0.25 +4.8/-0 [88.9,139.7) +0.38/-0.38 [139.7,203.2] +0.76/-0.76 ASTM A312 [10.29,48.26] +0.40/-0.80 10. 29～73.03? +20%-12.5% 88.90～762.00 t/D≤5%? +22%-12.5% 88.90～762.00 t/D≤5%?? +15%-12.5% >508.00 t/D焊接管式更大所有比例? +17.5%-12.5% +6/-0 (48.26,114.30] +0.08/-0.80 (114.30,219.08] +1.6/-0.80 (219.08,457.20] +2.40/-0.80 JIS G3459 D<30 +0.30/-0.30 S<2 (+,-)20 D≥30 +1%-1% S≥2 (+,-)10% JIS G3463 D<40 +0.25/-0.25 D<40:S<2 +0.40/-0 D≤50:L≤7 +7/-0 [40,50) D<50:L>7 长度每增加３M或 其零数在上面的正 允许偏差加上３mm， 最大15mm [50,60) [60,80) +0.30/-0.30 D<40:S≥2 +20%/-0 [80,100) +0.40/-0.40 [100,120) +0.40/-0.60 D>50:L≤7 +10/-0 [120,160) +0.40/-0.80 D≥40 +22%/-0 D>50:L>7 与D<50:L≥7m 内容相同 [160,200) +0.40/-0.60 D≥200 +0.40/-1.60 DIN17456 DIN17458 D2 (+,-)1.0%(+,-)0.5min T3 (+,-)10% 0.2min D≤40:L 1m D≤40:L:(1-2]m D≤40:L:(2-3]m D≤40:L:(3-4]m D≤40:L:(4-8]m +1/-0 +2/-0 D3 (+,-)0.75%(+,-)0.3min +3/-0 T4 (+,-)7.5% 0.15min +4/-0 +5/-0 D4 (+,-)5% 0.1min 40<D<168 L≤6m +5/-0 L>6m +10/-0 ASTM A511 TABLE3 D<12.7 +0.13/-0.13 (+,-)15% +3.2/-0 [12.7,38.1) (+,-)10% +4.8/-0 [38.1,88.9) +0.25/-0.25 [88.9,139.7) +0.38/-0.38 [139.7,203.2) +0.76/-0.76 [203.2,219.8) +1.14/-1.14 [219.8,323.85] +1.57/-1.57 ASTM A511 TABLE4 D≤76.2 +0.56/-0.58 S≤2.77 (+,-)16.5% +4.76/-0 2.77<S≤4.37 (+,-)15% 4.37<S≤5.16 (+,-)14% S>5.16 (+,-)12.5% (76.2,139.7] +0.79/-0.79 S≤2.77 (+,-)16.5% 2.77<S≤4.37 (+,-)15% 4.37<S≤5.16 (+,-)14% S>5.16 (+,-)12.5% (139.7,203.2] +1.19/-1.19 4.37<S≤5.16 (+,-)14% S>5.16 (+,-)12.5%