不锈钢扶手面管壁厚公差标准
不锈钢扶手面管壁厚公差标准
|
NPS
|
DN
|
OD
|
常用标准
|
||||||
|
0.6
|
1.0
|
1.6
|
2.5
|
4.0
|
6.0
|
8.0
|
|||
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壁厚 mm
|
|||||||||
|
3/4
|
20
|
26.67
|
0.07
|
0.11
|
0.18
|
0.28
|
0.45
|
0.67
|
0.89
|
|
1
|
25
|
33.40
|
0.09
|
0.14
|
0.23
|
0.36
|
0.57
|
0.84
|
1.11
|
|
11/4
|
32
|
42.16
|
0.11
|
0.18
|
0.29
|
0.45
|
0.71
|
1.06
|
1.40
|
|
11/2
|
40
|
48.26
|
0.12
|
0.21
|
0.33
|
0.51
|
0.82
|
1.21
|
1.61
|
|
2
|
50
|
60.33
|
0.16
|
0.26
|
0.41
|
0.64
|
1.02
|
1.52
|
2.01
|
|
3
|
80
|
88.90
|
0.23
|
0.38
|
0.61
|
0.95
|
1.50
|
2.24
|
2.96
|
|
4
|
100
|
114.30
|
0.29
|
0.49
|
0.78
|
1.22
|
1.93
|
2.88
|
3.80
|
|
6
|
150
|
168.28
|
0.43
|
0.72
|
1.15
|
1.79
|
2.85
|
4.24
|
5.60
|
|
8
|
200
|
219.08
|
0.56
|
0.94
|
1.50
|
2.33
|
3.71
|
5.52
|
7.29
|
|
10
|
250
|
273.05
|
0.70
|
1.17
|
1.87
|
2.91
|
4.62
|
6.87
|
9.09
|
|
12
|
300
|
323.85
|
0.83
|
1.39
|
2.22
|
3.45
|
5.48
|
8.15
|
10.78
|
|
14
|
350
|
355.60
|
0.92
|
1.52
|
2.43
|
3.79
|
6.02
|
8.95
|
11.84
|
|
16
|
400
|
406.40
|
1.05
|
1.74
|
2.78
|
4.33
|
6.88
|
10.23
|
13.53
|
|
尺寸 标准 |
外径（mm） |
壁厚（%） |
切割长度（mm） |
||||
|
尺寸 |
公差 |
尺寸(mm) |
公差 |
尺寸 |
公差 |
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|
GB/T14975-02 |
10~30 |
+0.30/-0.30 |
S≤3 |
+14/-14 |
1.0~3.0 |
+15/0 |
|
|
30~50 |
+0.40/-0.40 |
S＞3 |
+12/-10 |
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||
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D＞50 |
+0.9%/-0.9% |
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||
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GB/T14976-02 |
6~10 |
+0.20/-0.20 |
0.5~1.0 |
+0.15/-0.15mm |
|
+15/0 |
|
|
10~30 |
+0.30/-0.30 |
1.0~3.0 |
+14/-14 |
||||
|
30~50 |
+0.40/-0.40 |
＞3 |
+12/-10 |
||||
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D＞50 |
+0.9%/-0.9% |
|
+12.5/-12.5 |
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|
GB13296-91 |
≤140 |
+1.25%/-1.25% |
≤10 |
+15/-15 |
|
|
|
|
＞140 |
+1%/-1% |
＞10 |
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|
ASTM213 |
D＜25.4 |
+0.10/-0.10 |
D＜38.1 |
+20/0 |
D＜50.8 |
+3.0/0 |
|
|
25.4~38.1 |
+0.15/-0.15 |
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|
38.1~50.8 |
+0.20/-0.20 |
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50.8~63.5 |
+0.25/-0.25 |
D≥38.1 |
+22/0 |
D≥50.8 |
+5.0/0 |
||
|
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 |
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|
ASTM A269 |
D＜12.7 |
+0.13/-0.13 |
|
+15/-15 |
|
+3.2/0 |
|
|
12.7~38.1 |
+10/-10 |
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|
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 |
|
+12.5/-12.5 |
|
+6.0/0 |
|
|
48.26~114.30 |
+0.80/-0.80 |
||||||
|
114.30~219.08 |
+1.60 /-0.80 |
||||||
|
219.08~457.20 |
+2.40/-0.80 |
||||||
|
ASTM A789 |
D≤12.7 |
+0.13/-0.13 |
|
+15/-15 |
|
+3.0/0 |
|
|
12.7~38.1 |
+10/-10 |
||||||
|
38.1~88.9 |
+0.25/-0.25 |
+5.0/0 |
|||||
|
88.9~139.7 |
+0.38/-0.38 |
||||||
|
139.7~203.2 |
+0.76/-0.76 |
||||||
|
ASTM A790 |
10.29~48.26 |
+0.40/-0.80 |
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|
|
|
|
|
48.26~114.3 |
+0.80/-0.80 |
|
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|
|
|
|
|
114.3~219.08 |
+1.60/-0.80 |
|
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|
|
|
|
|
219.08~457.20 |
+2.40/-0.80 |
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|
EN17455-02 |
10~30 |
+0.30/-0.30 |
S≤3 |
+14/-14 |
1.0~3.0 |
+15.0/0 |
|
|
|
30~50 |
+4.00/-4.00 |
S＞3 |
+12/-10 |
|||
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|
D＞50 |
+9%/-9% |
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|
EN17456-02 |
6~10 |
+0.20/-0.20 |
0.5~1.0 |
+0.15/-0.15 |
|
+15.0/0 |
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|
10~30 |
+0.30/-0.30 |
1.0~3 |
+14/-14 |
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||
|
|
30~50 |
+4.00/-4.00 |
S＞3 |
+12/-10 |
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||
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|
D＞50 |
+0.9%/-0.9% |
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