- PRODUCTS
- Stainless Steel Seamless Pipe for Structure Support
- Stainless Steel Seamless Pipe for Conveying Fluid
- Stainless Steel Seamless Pipe for Heat Exchanger
- Stainless Steel Seamless Pipe for Machinery
- Stainless Steel Seamless Pipe for Oil Cracking
- Stainless Steel Seamless Pipe for High-pressure Boilers
Comparison between Domestic and International Size Deviations
|
Size
Specification
|
Size
|
Permissible Variation
|
Size
|
Permissible Variation
|
Size
|
Permissible Variation
|
|
GB/T14975-94
|
(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/T14976-94
|
[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%
|
|
|
|||
|
GB/T13296-91
|
[8,30]
|
+0.20/-0.20
|
[1.0,3.0]
|
|
|
+15/-0
|
|
(30,50]
|
+0.30/-0.30
|
S>3
|
(+12%-10%
|
|||
|
D>50
|
(+,-)0.8%
|
|
(+,-)10%
|
|||
|
ASTMA213
|
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
|
+22%/-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
|
|||||
|
ASTMA269
|
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
|
|||||
|
ASTMA312
|
[10.29,48.26]
|
+0.40/-0.80
|
|
weight bias of the external diameter ≤ NPS12 pipe:+10%-3.5%;weight deviation of the diameter > NPS12 steel:+10%-5%
|
|
+6/-0
|
|
(48.26,114.30]
|
+0.80/-0.80
|
|||||
|
(114.30,219.08]
|
+1.6/-0.80
|
|||||
|
(219.08,457.20]
|
+2.40/0.80
|
|||||
|
JISG3459
|
D<30
|
+0.03/-0.30
|
S<2
|
(+,-)20
|
|
|
|
D≥30
|
+1%-1%
|
S≥2
|
(+,-)10%
|
|||
|
JISQ3463
|
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
|
Length for each additional number of 3M or its zero in the above deviation is allowed to add 3mm, maximum 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
|
Same with D<50;L≥7m
|
|
|
[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≤6 m
|
+5/-0
|
|||||
|
L>6 m
|
+10/-0
|
|||||
|
ASTMA511
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)
|
+1.14/0.14
|
|||||
|
[219.8,323.85]
|
+1.57/-1.57
|
|||||
|
ASTMA511
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%
|
|||||
|
ASTMA511
TABLE4
|
(76.2,139.7]
|
+0.79/-0.79
|
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%
|
|||||
|
(139.7,203.2]
|
+1.19/-1.19
|
4.37<S≤5.16
|
(+,-)14%
|
|
||
|
S>5.16
|
(+,-)12.5%
|
Dropship rice milling machines seamless pipe seamless steel seamless steel pipe stainless steel manufacturers stainless steel pipes stainless steel seamless pipe
Copyright © 2009 Nanjing Shente Stainless Steel Co., Ltd. All Rights Reserved.