国内国际尺寸偏差对照

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%