PRODUCT

PRODUCTS
Zhongkuang Steel Pipe Co.,Ltd


                       

                                                                       
                         

                                                                                            

 

 1.Production technology: Hot-rolled
  Manufacturing process: Round billet→heating→boring→theree-roll helical rolling, tandem rolling/ extruding→detaching pipe→sizing or reducing→cooling→semi-finished pipe→straightening→hydraulic testing/inspection (fault detection)→cut length→plain ends/beveled ends/painting→marking→warehouse/delivery
2.Executive standards: GB/T 8162/8163, ASME B36.10, ASTM A106/A53, API 5L/5CT, DIN.
3.Specification range:
OD: 3”-24”
WT: SCH10-SCHXXS
4.Materials: 10#, 20#, 45#, 16Mn, GrB, Q345B, X42-56, ST44, ST52 etc.
5.Testing: Eddy current/ Hydrostatic/Ultrasonic/ Intergranular Corrosion etc.
6.Packing: Bundles, seaworthy packing, or as required by customers.
7.Application:
Hot-rolled seamless steel pipes are widely used for conveying fluid, such as petroleum, natural gas, coal gas, water and some solid materials, also ship-building, chemical fertilizer equipment etc.

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Zhongkuang Company 2014 zkoctg.com all rights reserved.
Nominal Size Outside 

Diameter

Norminal Wall Thickness(MM)
DN NPS OD(MM) SCH10 SCH20 SCH30 STD SCH40 SCH60 XS SCH80 SCH100 SCH120 SCH140 SCH160 XXS
65
80
90
21/2
3
31/2
73.0
88.9
101.6
3.05
3.05
3.05
---
---
---
4.78
4.78
4.78
5.16
5.49
5.74
5.16
5.49
5.74
---
---
---
7.01
7.62
8.08
7.01
7.62
8.08
---
---
---
---
---
---
---
---
---
9.53
11.13
---
14.02
15.24
---
100
125
150
4
5
6
114.3
141.3
168.3
3.05
3.40
3.40
---
---
---
---
---
---
6.02
6.55
7.11
6.02
6.55
7.11
---
---
---
8.56
9.53
10.97
8.56
9.53
10.97
---
---
---
11.13
12.70
14.27
---
---
---
13.49
15.88
18.26
17.12
19.05
21.95
200
250
300
8
10
12
219.1
273.1
323.9
3.76 4.19
4.57
6.35
6.35
6.35
7.04
7.80
8.38
8.18
9.27
9.53
8.18
9.27
10.31
10.31
12.70
14.27
12.70
12.70
12.70
12.70
15.09
17.48
15.09
18.26
21.44
18.26
21.44
25.40
20.62
25.40
28.58
23.01
28.58
33.32
22.23
25.40
25.40
350
400
450
14
16
18
355.6
406.4
457.2
6.35
6.35
6.35
7.92
7.92
7.92
9.53
9.53
11.13
9.53
9.53
9.53
11.13
12.70
14.27
15.09
16.66
19.05
12.70
12.70
12.70
19.05
21.44
23.83
23.83
26.19
29.36
27.79
30.96
34.93
31.75
36.53
39.67
35.71
40.49
45.24
---
---
---
500
550
600
20
22
24
508
559
610
6.35
6.35
6.35
9.53
9.53
9.53
12.70
12.70
14.27
9.53
9.53
9.53
15.09
---
17.48
20.62
22.23
24.61
12.70
12.70
12.70
26.19
28.58
30.96
32.54
34.93
38.89
38.10
41.28
46.02
44.45
47.63
52.37
50.01
53.98
59.54
---
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