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Detail
Seamless pipe
OD3.5
2.46
2.978
3.323
3.582
4.014
4.359
4.618
4.877
5.179
5.567
5.74
5.999
6.258
7.38
9.02
5.179
5.567
5.74
5.999
6.258
7.38
9.02
12.725
15.29
21.209
26.536
31.665
43.158
45.871
51.913
OD4
2.762
3.354
3.749
4.044
4.535
4.932
5.228
5.524
5.869
6.313
6.511
6.807
7.103
8.385
10.259
5.869
6.313
6.511
6.807
7.103
8.385
10.259
14.261
17.146
23.805
29.797
35.568
47.406
50.39
57.036
Seamless pipe is long jointless steel with hollow section. The production capacity of seamles pipe (including special oil tube) is surpass
the demand both in domestic and international markets. There are
many kinds of seamless pipe such as alloy pipe,stainless steel pipe,
low temperature pipe, high pressure boiler pipe, high pressure
fertilizer pipe,oil cracking pipe,low and medium pressure boiler
tube, fluid transporting tube, common structural pipe, oil casting
pipe, line pipe, straight seam steel pipe ,spiral steel pipe,etc..
The material for making seamless pipe is round tube blank, which is cut by cutting machine to be about one meter long and sent into
furnace by conveyor belt for heating at the temperature of 1200℃.The fuel used is hydrogen and acetylene. Furnace temperature
control is critical.
Then the round tubular steel blank comes to pressure piercer.
Generally the piercer is a cone type piercer, which is characterized
as high production efficiency, good product quality and big
expanding amount. It can be used for several kinds of steel piercing.The pierced round tubular blank is successively processed by three
roll cross rolling, continuous rolling and extrusion. Then it has a
tube knockout sizing and it is slotted by sizing mill at high speed
rotating of cone shape drill to form pipe . The inner diameter of thesteel pipe is determined by the drill length.
After sizing, the steel pipe is sent into cooling tower for water
cooling and then it will be straightened.
Seamless pipe
Mr.Chen:
Tel.:18831578909 (As wechat)
Fax: 0315-3856656
Email: tszbyj@163.com
OD6.5
4.088
5.049
5.691
6.172
6.973
7.614
8.095
8.576
9.137
OD5
3.329
4.069
4.582
4.932
5.549
6.042
6.412
6.782
7.214
7.768
8.015
9.385
8.755
10.358
12.701
7.214
7.768
8.015
8.385
8.755
10.358
12.701
17.294
20.821
28.959
36.283
43.337
thickness
32
38
42
45
50
54
57
60
63.5
68
70
73
76
89
108
63.5
68
70
73
76
89
108
133
15
219
273
325
355
377
426
OD3
2.146
2.589
2.885
3.107
3.477
3.773
3.995
4.217
4.476
4.809
4.957
5.179
5.401
6.363
7.768
4.476
4.809
4.957
5.179
5.401
6.363
7.768
11.178
13.422
18.601
23.262
27.75
38.897
41.339
46.777
OD6
3.847
4.735
5.327
5.771
6.511
7.103
7.546
7.99
8.508
9.174
9.47
9.914
10.358
12.281
15.093
8.508
9.174
9.47
9.914
10.358
12.281
15.093
OD4.5
3.052
3.718
4.162
4.495
5.049
5.493
5.826
6.159
6.548
7.047
7.269
7.602
7.935
9.378
11.486
6.548
7.047
7.269
7.602
7.935
9.378
11.486
15.783
18.989
26.388
33.046
39.458
51.641
54.897
62.147
OD9 OD10 OD12
OD5.5
3.594
4.408
4.951
5.358
6.036
6.578
6.985
7.392
7.867
8.477
8.749
9.156
9.563
11.326
13.903
7.867
8.477
8.749
9.156
9.563
11.326
13.903
18.792
22.639
thickness
32
38
42
45
50
54
57
60
63.5
7.423
8.114
8.632
9.149
9.751
8.286
9.075
9.667
10.259
10.95
8.699
9.538
10.167
10.796
11.529
Unit:kg/m
OD7
OD8
OD8.5