Showing posts with label steel tube. Show all posts
Showing posts with label steel tube. Show all posts

Sunday, June 23, 2013

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%