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信息來源：不銹鋼調貨網
美標SCH英寸對照表
NOMINAL PIPE SIZE
OD
NOMINAL WALL THICKNESS
A
B
ASME
SCH10
SCH20
SCH30
STD
SCH40
SCH60
XS
SCH80
SCH100
SCH120
SCH140
SCH160
XXS
15
1/2"
21.3
2.11
2.41
2.77
3.73
4.78
7.47
20
3/4"
26.7
2.87
3.91
5.56
7.82
25
1"
33.4
2.9
3.38
4.55
6.35
9.09
32
1.1/4"
42.2
2.97
3.56
4.85
9.7
40
1.1/2"
48.3
3.18
3.68
5.08
7.14
10.15
50
2"
60.3
5.54
8.74
11.07
65
2.1/2"
73
3.05
5.16
7.01
9.53
14.02
80
3"
88.9
5.49
7.62
11.13
15.25
90
3.1/2"
101.6
5.74
8.08
100
4"
114.3
6.02
8.56
13.49
17.12
125
5"
141.3
3.4
6.55
12.7
15.88
19.05
150
6"
168.3
7.11
10.97
14.27
18.26
21.95
200
8"
219.1
3.76
7.04
8.18
10.31
15.09
20.62
23.01
22.23
250
10"
273
4.19
7.8
9.27
21.44
25.4
28.58
300
12"
323.8
4.57
8.38
17.48
33.32
350
14"
355.6
7.92
23.83
27.79
31.75
35.71
400
16"
406.4
16.66
26.19
30.96
36.53
40.19
450
18"
457.2
39.36
34.93
39.67
45.24
500
20"
508
32.54
38.1
44.45
50.01
550
22"
558.8
41.28
47.63
53.98
600
24"
609.6
24.61
38.89
46.02
52.37
59.54
650
26"
660.4
700
28"
711.2
750
30"
762
800
32"
812.8
850
34"
863.6
900
36"
914.4
950
38"
965.2
1000
40"
1016
1050
42"
1066.8
1100
44"
1117.6
1150
46"
1168.4
1200
48"
1219.2
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