河北圣天管件异径管工艺流程及尺寸
异径管又叫大小头，分为同心大小头和偏心大小头
一、异径管的性能
1、表示方法是大头直径乘以小头直径，例如"8×6"表示大头直径是8英寸，小头直径是6英寸的大小头。
2、压力壁厚为Sch5s、Sch10s、Sch10、Sch20、Sch30、Sch40s、STD、Sch40、Sch60、Sch80s、XS;Sch80、Sch100、Sch120、Sch140、Sch160、XXS
3、材质分为碳钢 ，合金钢 ，不锈钢
a、碳钢:10#、20#、A3、Q235A、20G、16Mn、ASTM A234、ASTM A105等
b、不锈钢：ASTM A403、1Cr18Ni9Ti、0Cr18Ni9、00Cr19Ni10、、00Cr17Ni14Mo2、304、304L、316、316L等
c、合金钢:16MnR、Cr5Mo、12Cr1MoV、10CrMo910、15CrMo、12Cr2Mo1、A335P22、St45.8/Ⅲ、A10bB
4、执行标准： 国标、美标(ANIS)、日标(JIS)、英标(BS)、德标(DIN)、意标(UNI)等
5、产品用途： 石油气管道工程，天然气管道工程，化工厂，电厂，造船厂，制药，乳品，啤酒，饮料，水利等
二、异径管生产工艺流程
原材料复检 --- 切割下料 --- 压制成型 --- 整形 --- 热处理 --- 加工坡口 --成品检验 --- 表面处理 --- 标识 --- 资料确认 --- 包装 --- 储运
三、异径管几何尺寸
|
公称英寸
|
Sch.120
|
Sch.140
|
Sch.160
|
XXS
|
||||||||
|
t1
|
t2
|
kg
|
t1
|
t2
|
kg
|
t1
|
t2
|
kg
|
t1
|
t2
|
kg
|
|
|
11/2×11/2
|
|
|
|
|
|
|
7.14
|
7.14
|
1.79
|
10.15
|
10.15
|
2.54
|
|
2×3/4
|
|
|
|
|
|
|
8.74
|
5.56
|
3.18
|
11.07
|
7.82
|
4
|
|
×1
|
|
|
|
|
|
|
|
6.35
|
3.18
|
|
9.09
|
4
|
|
×11/4
|
|
|
|
|
|
|
|
6.35
|
3.18
|
|
9.7
|
4
|
|
×11/2
|
|
|
|
|
|
|
|
7.14
|
3.18
|
|
10.15
|
4
|
|
×2
|
|
|
|
|
|
|
|
8.74
|
3.18
|
|
11.07
|
4
|
|
21/2×1
|
|
|
|
|
|
|
9.53
|
6.35
|
3.58
|
14.02
|
9.09
|
4
|
|
×11/4
|
|
|
|
|
|
|
|
6.35
|
3.58
|
|
9.7
|
4.15
|
|
×11/2
|
|
|
|
|
|
|
|
7.14
|
3.58
|
|
10.15
|
4.2
|
|
×2
|
|
|
|
|
|
|
|
8.74
|
3.58
|
|
11.07
|
4.2
|
|
×21/2
|
|
|
|
|
|
|
|
9.53
|
3.58
|
|
14.02
|
4.5
|
|
3×11/4
|
|
|
|
|
|
|
11.13
|
6.35
|
5.65
|
15.24
|
9.7
|
6.25
|
|
×11/2
|
|
|
|
|
|
|
|
7.14
|
5.75
|
|
10.15
|
6.3
|
|
×2
|
|
|
|
|
|
|
|
8.74
|
5.85
|
|
11.07
|
6.35
|
|
×21/2
|
|
|
|
|
|
|
|
9.53
|
6.15
|
|
14.02
|
6.6
|
|
×3
|
|
|
|
|
|
|
|
11.13
|
6.58
|
|
15.24
|
7.1
|
|
4×11/2
|
|
|
|
|
|
|
13.49
|
7.14
|
10.8
|
17.12
|
10.15
|
14.5
|
|
×2
|
|
|
|
|
|
|
|
8.74
|
10.8
|
|
11.07
|
14.5
|
|
×21/2
|
|
|
|
|
|
|
|
9.53
|
10.8
|
|
14.02
|
14.5
|
|
×3
|
|
|
|
|
|
|
|
11.13
|
11.1
|
|
15.24
|
14.5
|
|
×4
|
11.13
|
11.13
|
9
|
|
|
|
|
13.49
|
11.8
|
|
17.12
|
15
|
|
5×2
|
|
|
|
|
|
|
15.88
|
8.74
|
23
|
19.05
|
11.07
|
27.2
|
|
×21/2
|
|
|
|
|
|
|
|
9.53
|
23
|
|
14.02
|
27.2
|
|
×3
|
|
|
|
|
|
|
|
11.13
|
23
|
|
15.24
|
27.2
|
|
×4
|
12.7
|
11.13
|
17.5
|
|
|
|
|
13.49
|
23
|
|
17.12
|
28.8
|
|
×5
|
|
12.7
|
17.5
|
|
|
|
|
15.88
|
23
|
|
19.05
|
29.9
|
|
6×21/2
|
|
|
|
|
|
|
18.26
|
9.53
|
30.9
|
21.95
|
14.02
|
34.8
|
|
×3
|
|
|
|
|
|
|
|
11.13
|
30.9
|
|
15.24
|
34.8
|
|
×4
|
14.27
|
11.13
|
24
|
|
|
|
|
13.49
|
32.7
|
|
17.12
|
34.8
|
|
×5
|
|
12.7
|
24
|
|
|
|
|
15.88
|
32.7
|
|
19.05
|
35.6
|
|
×6
|
|
14.27
|
24
|
|
|
|
|
18.26
|
39.5
|
|
21.95
|
35.6
|
|
8×4
|
18.26
|
11.13
|
43.2
|
|
|
|
23.01
|
13.49
|
51
|
22.23
|
17.12
|
50.4
|
|
×5
|
|
12.7
|
43.2
|
|
|
|
|
15.88
|
55.6
|
|
19.05
|
50.4
|
|
×6
|
|
14.27
|
49.5
|
|
|
|
|
18.26
|
55.6
|
|
21.95
|
51.3
|
|
×8
|
|
18.26
|
49.5
|
20.62
|
20.62
|
54
|
|
23.01
|
58
|
|
22.23
|
55.5
|
|
10×4
|
21.44
|
11.13
|
71.3
|
|
|
|
28.58
|
13.49
|
85
|
25.4
|
17.12
|
79.3
|
|
×5
|
|
12.7
|
71.3
|
|
|
|
|
15.88
|
91.3
|
|
19.05
|
79.3
|
|
×6
|
|
14.27
|
81
|
|
|
|
|
18.26
|
102.2
|
|
21.95
|
90.9
|
|
×8
|
|
18.26
|
88.50
|
25.40
|
20.62
|
95.00
|
|
23.01
|
113.00
|
|
22.23
|
90.9
|
|
×10
|
|
21.44
|
93
|
|
25.4
|
98.5
|
|
28.58
|
129.3
|
|
25.4
|
98.5
|
|
12×5
|
25.4
|
12.7
|
102.6
|
|
|
|
33.32
|
15.88
|
140.3
|
25.4
|
19.05
|
119.5
|
|
×6
|
|
14.27
|
102.6
|
|
|
|
|
18.26
|
140.3
|
|
21.95
|
119.5
|
|
×8
|
|
18.26
|
131.20
|
28.58
|
20.62
|
140.00
|
|
23.01
|
152.30
|
|
22.23
|
129.1
|
|
×10
|
|
21.44
|
140.90
|
|
25.40
|
158.00
|
|
28.58
|
163.5
|
|
25.4
|
150
|
|
×12
|
|
25.40
|
150.00
|
|
28.58
|
176.50
|
|
33.32
|
183.80
|
|
25.40
|
150
|
|
14×6
|
27.79
|
14.27
|
205.00
|
|
|
|
35.71
|
18.26
|
250.00
|
|
|
|
|
×8
|
|
18.26
|
220.00
|
31.75
|
20.62
|
230.00
|
|
23.01
|
250.00
|
|
|
|
|
×10
|
|
21.44
|
220.00
|
|
25.40
|
245.00
|
|
28.58
|
265.00
|
|
|
|
|
×12
|
|
25.40
|
235.00
|
|
28.58
|
255.00
|
|
33.32
|
270.00
|
|
|
|
|
×14
|
|
27.79
|
235.00
|
|
31.75
|
255.00
|
|
35.71
|
270.00
|
|
|
|
|
16×6
|
30.96
|
14.27
|
265.40
|
|
|
|
40.49
|
18.26
|
320.80
|
|
|
|
|
×8
|
|
18.26
|
265.40
|
36.53
|
20.62
|
295.00
|
|
23.01
|
322.00
|
|
|
|
|
×10
|
|
21.44
|
280.00
|
|
25.40
|
300.00
|
|
28.58
|
330.50
|
|
|
|
|
×12
|
|
25.40
|
280.00
|
|
28.58
|
310.00
|
|
33.32
|
340.00
|
|
|
|
|
×14
|
|
27.79
|
295.00
|
|
31.75
|
340.00
|
|
35.71
|
360.00
|
|
|
|
|
×16
|
|
30.96
|
295.00
|
|
36.53
|
360.00
|
|
40.49
|
389.00
|
|
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