TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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The GOST 8731 standard specifies the requirements for seamless hot-rolled steel pipes used for general purposes. These pipes are manufactured from high-quality carbon steel, ensuring durability and reliability in various applications.
The seamless steel tubes and pipes under GOST 8731 are designed to meet specific dimensional and mechanical properties, making them suitable for a wide range of industrial applications. The standard outlines the manufacturing processes, testing methods, and quality assurance measures to ensure compliance with the required specifications.
| Steel Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) | Ni (%) | Mo (%) |
|---|---|---|---|---|---|---|---|---|
| 10Г2 | 0.08-0.12 | 0.17-0.37 | 0.30-0.60 | ≤0.035 | ≤0.025 | - | - | - |
| 20X | 0.17-0.24 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.025 | - | - | - |
| 30XCA | 0.25-0.35 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.025 | 0.30-0.60 | - | - |
| 15XM | 0.12-0.20 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.025 | 0.30-0.60 | 0.30-0.60 | - |
| 30XMA | 0.25-0.35 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.025 | 0.30-0.60 | 0.30-0.60 | 0.10-0.20 |
| Steel Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| 10Г2 | ≥ 245 | 400-540 | ≥ 22 | ≤ 160 |
| 20X | ≥ 245 | 400-540 | ≥ 22 | ≤ 160 |
| 30XCA | ≥ 245 | 400-540 | ≥ 22 | ≤ 160 |
| 15XM | ≥ 245 | 400-540 | ≥ 22 | ≤ 160 |
| 30XMA | ≥ 245 | 400-540 | ≥ 22 | ≤ 160 |
The GOST 8731 standard includes several steel grades, such as 10Г2, 20X, 30XCA, 15XM, and 30XMA, each designed for specific applications and performance requirements.
These seamless steel pipes are widely used in various industries, including:
While GOST 8731 specifies certain grades, alternative grades may be considered based on specific requirements, including:
Haiyan Sanxin Steel Pipe Factory is a leading manufacturer of steel pipes in China. Located in a region with excellent geographical advantages, the factory is situated close to the Zhoushan Port and Ningbo Port.
Our factory covers an area of more than 25,000 square meters and has been in the steel pipe manufacturing business for 20 years. Over this period, we have accumulated a wealth of professional experience, which has helped us establish ourselves as a trusted name in the industry.
At our factory, we specialize in the production of various types of steel pipes, including stainless steel pipe, carbon steel pipe, copper pipe, steel pipe,seamless steel pipe and welded pipe. Our expertise in this field is evident from the 12 patents that we hold, which demonstrate our commitment to innovation and excellence.
A: manufacturer,also can do trading.
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.