| ???????????????????尺寸（SIZE） 標準(SPECIFICATION) | 外徑尺寸
SIZE | 外徑允許偏差
PERMISSIBLE VARIATION | 外徑尺寸
SIZE | 壁厚允許偏差
PERMISSIBLE VARIATION | 尺寸
SIZE | 允許偏差
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 | 長度每增加３M或
其零數(shù)在上面的正
允許偏差加上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 | 與D<50:L≥7m
內容相同 | [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% |
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