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Eastern Steel Manufacturing Co.,Ltd is a leading manufacturer and distributor of seamless steel pipe, welded steel pipe, OCTG products and fittings. We supply first-step processing, semi-finished parts and finished parts to help our clients meet fabrication requirements beyond their capacity or to improve operations by moving forward the pre-production processing.
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In this column you can find the steel pipe related articles you need, including industry trends, product standards and materials, and some technical guidelines.
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Eastern Steel Manufacturing Co.,Ltd not only improve product production and sales services, but also provide additional value-added services. As long as you need, we can complete your specific needs together.
Facility
Eastern Steel Manufacturing Co.,Ltd not only improve product production and sales services, but also provide additional value-added services. As long as you need, we can complete your specific needs together.
Projects
Many years of large-scale project experience in various fields（Oil & Gas, Construction, Power Energy, Marine & Offshore, Water Treatment, Exploration & Drilling Services, Pipeline & Petrochemical etc.）, professional project team is responsible from receiving until the end of the project.
Seamless steel pipe is a high-strength, high-temperature resistant and corrosion-resistant steel product, which is widely used in many fields such as petroleum, chemical industry, aviation, aerospace, etc. According to its load-bearing capacity and performance characteristics, seamless steel pipes are divided into different strength grades, the common ones are as follows:
1. Commonly used steel grades such as 20#, 35#, 45#, Q345B, 20G, 16MnG, etc., with strength grades of GB/T8162-2008 B and C.
2. Medium and high-strength steel grades such as Q345, Q390, 12CrMoV, etc., with strength grades of GB/T309-2001 A, B, and C.
3. Special high-strength, high-corrosion-resistant, high-temperature performance pipes, such as 00Cr17Ni14Mo2, 0Cr18Ni11Nb, 0Cr18Ni9Ti and other seamless stainless steel pipes, with strength grades of GB/T14976-2002 A, B, and C.
The following table lists the common seamless steel pipe strength grades and their corresponding grades, sizes, weights and other parameters.
|
Strength Grade |
Grade |
Dimensions (mm) |
Weight (kg/m) |
|
Class B |
20# |
8-426 |
0.4-80 |
|
Class B |
35# |
10-426 |
0.5-80 |
|
Class B |
45# |
16-426 |
0.9-80 |
|
Class B |
Q345B |
16-426 |
1.0-80 |
|
Class B |
20G |
8-426 |
0.4-80 |
|
Class B |
16MnG |
14-426 |
1.2-80 |
|
Class C |
Q345 |
12-426 |
1.0-80 |
|
Class C |
Q390 |
12-426 |
1.2-80 |
|
Class C |
12CrMoV |
12-426 |
1.5-80 |
|
Class A |
00Cr17Ni14Mo2 |
6-530 |
0.5-150 |
|
Class A |
0Cr18Ni11Nb |
6-630 |
0.5-160 |
|
Class A |
0Cr18Ni9Ti |
6-630 |
0.5-160 |
The strength grades of seamless steel pipes are classified according to their steel properties and usage characteristics. Pipes of different strength grades are applicable to different industries and fields, and carry different loads and forces. Understanding these strength grades and parameter information can help users select and use seamless steel pipes more accurately, while ensuring the quality and safety of the project, and improving the efficiency of material and resource use.
Read more: Seamless Steel Pipe Sizes
E-mail: sales@eastern-steels.com
