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Hot rolled structural pipe
- Product description
-
Hot rolled structural pipe
They are widely used for petroleum, power generation, natural gas, coal gas, water and some solid materials, also ship-building, chemical fertilizer equipment etc.
Product Description
Hot rolled structural pipe( carbon steel seamless pipe)
Application: carbon seamless steel pipe are widely used for petroleum, power generation, natural gas, coal gas, water and some solid materials, also ship-building, chemical fertilizer equipment etc.
Standard: API SPEC 5L, ASME B36.10, ASTM A106/A53
Process: Hot-rolled
Specification range
OD: 1/2”-24”
WT: SCH10-SCHXXS
Materials: GrB, Q345B, X42-70, ST44, ST52 etc.
Testing: Eddy current/ Hydrostatic/Ultrasonic/ Intergranular Corrosion etc.
Packing: Bundles, seaworthy packing, or as required by customers.Technical parameters of Seamless pipe
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 15
20
251/2
3/4
121.3
26.7
33.42.11
2.11
2.77---
---
---2.41
2.41
2.902.77
2.87
3.382.77
2.87
3.38---
---
---3.73
3.91
4.553.73
3.91
4.55---
---
------
---
------
---
---4.78
5.56
6.357.47
7.82
9.0932
40
5011/4
11/2
242.2
48.3
60.32.77
2.77
2.77---
---
---2.97
3.18
3.183.56
3.68
3.913.56
3.68
3.91---
---
---4.85
5.08
5.544.85
5.08
5.54---
---
------
---
------
---
---6.35
7.14
8.749.70
10.15
11.0765
80
9021/2
3
31/273.0
88.9
101.63.05
3.05
3.05---
---
---4.78
4.78
4.785.16
5.49
5.745.16
5.49
5.74---
---
---7.01
7.62
8.087.01
7.62
8.08---
---
------
---
------
---
---9.53
11.13
---14.02
15.24
---100
125
1504
5
6114.3
141.3
168.33.05
3.40
3.40---
---
------
---
---6.02
6.55
7.116.02
6.55
7.11---
---
---8.56
9.53
10.978.56
9.53
10.97---
---
---11.13
12.70
14.27---
---
---13.49
15.88
18.2617.12
19.05
21.95200
250
3008
10
12219.1
273.1
323.93.76
4.19
4.576.35
6.35
6.357.04
7.80
8.388.18
9.27
9.538.18
9.27
10.3110.31
12.70
14.2712.70
12.70
12.7012.70
15.09
17.4815.09
18.26
21.4418.26
21.44
25.4020.62
25.40
28.5823.01
28.58
33.3222.23
25.40
25.40350
400
45014
16
18355.6
406.4
457.26.35
6.35
6.357.92
7.92
7.929.53
9.53
11.139.53
9.53
9.5311.13
12.70
14.2715.09
16.66
19.0512.70
12.70
12.7019.05
21.44
23.8323.83
26.19
29.3627.79
30.96
34.9331.75
36.53
39.6735.71
40.49
45.24---
---
---500
550
60020
22
24508
559
6106.35
6.35
6.359.53
9.53
9.5312.70
12.70
14.279.53
9.53
9.5315.09
---
17.4820.62
22.23
24.6112.70
12.70
12.7026.19
28.58
30.9632.54
34.93
38.8938.10
41.28
46.0244.45
47.63
52.3750.01
53.98
59.54---
---
---500
550
60020
22
24508
559
6106.35
6.35
6.359.53
9.53
9.5312.70
12.70
14.279.53
9.53
9.5315.09
---
17.4820.62
22.23
24.6112.70
12.70
12.7026.19
28.58
30.9632.54
34.93
38.8938.10
41.28
46.0244.45
47.63
52.3750.01
53.98
59.54---
---
---Notice: Special sizes which customer required can be provided.
Hot rolled seamless steel pipe is a high - performance product widely used in various industrial fields, valued for its unique manufacturing process and excellent mechanical properties. Unlike welded pipes, it is produced without any seams, which gives it superior strength and reliability, making it ideal for applications that require high pressure and durability.The production process of hot rolled seamless steel pipe involves several key steps. First, a solid round billet is heated to a high temperature, typically above 1000 degrees Celsius, in a furnace. This heating makes the billet malleable, allowing it to be processed into the desired shape. The heated billet is then pierced by a piercing mill to create a hollow shell, which is further rolled and stretched to form the final dimensions of the pipe. This seamless manufacturing method eliminates the weak points that can exist in welded pipes, enhancing the pipe's ability to withstand high internal pressure.Hot rolled seamless steel pipes exhibit a range of impressive properties. They have high tensile strength, which enables them to bear heavy loads and resist deformation under stress. Additionally, they offer good ductility, allowing for some degree of bending and shaping without cracking, which is beneficial in various installation scenarios. The hot rolling process also refines the grain structure of the steel, improving its overall toughness and impact resistance, making the pipes suitable for use in harsh environments.These pipes find extensive applications across multiple industries. In the oil and gas sector, they are used for drilling and transporting hydrocarbons due to their ability to handle high pressure and corrosive substances. In the construction industry, they are employed in structural frameworks, where their strength and durability provide stability to buildings and infrastructure. They are also widely used in the automotive and machinery manufacturing fields, serving as components in engines, hydraulic systems, and other mechanical parts that require reliable performance.Quality control is of utmost importance in the production of hot rolled seamless steel pipes. Manufacturers implement strict testing procedures throughout the production process, including chemical composition analysis, mechanical property testing, and non - destructive testing such as ultrasonic inspection. These tests ensure that the pipes meet the required standards and specifications, guaranteeing their performance and safety in various applications.
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