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GB/T 8162 is a Chinese national standard that specifies the requirements for cold rolled structural seamless precision steel tubes for automobiles. These tubes are used in various structural components of automobiles, providing enhanced precision and strength. This article will delve into the material, specification, key features, chemical composition, mechanical properties, steel grades, applications, and possible alternative grades of GB/T 8162 tubes.
The GB/T 8162 standard defines the material requirements and specifications for cold rolled structural seamless precision steel tubes used in the automotive industry. These tubes are typically manufactured using carbon steel or low alloy steel, ensuring a high level of strength, durability, and precision. The standard specifies the dimensional tolerances, technical requirements, and testing methods for these tubes to ensure their quality and performance.
GB/T 8162 Cold Rolled Structural Seamless Precision Steel Tubes for Automobiles offer several key features that make them suitable for automotive applications:
Precision: These tubes are crafted with strict dimensional tolerances, ensuring accurate and precise fitment within automotive structures.
Strength: The use of high-quality carbon steel or low alloy steel ensures excellent strength and structural integrity, enabling the tubes to withstand heavy loads and pressure.
Durability: GB/T 8162 tubes are designed to resist deformation, corrosion, and wear, ensuring a longer lifespan and enhanced performance in demanding automotive environments.
Seamless Construction: The seamless production process eliminates the presence of seams or joints, reducing the risk of leakage and enhancing the overall reliability of the tubes.
| Grade | Chemical Composition |
|---|---|
| 10 | C ≤ 0.07, Si ≤ 0.37, Mn ≤ 0.65, P ≤ 0.035, S ≤ 0.035 |
| 20 | C ≤ 0.17, Si ≤ 0.37, Mn ≤ 0.65, P ≤ 0.035, S ≤ 0.035 |
| 35 | C ≤ 0.32, Si ≤ 0.37, Mn ≤ 0.65, P ≤ 0.035, S ≤ 0.035 |
| 45 | C ≤ 0.42, Si ≤ 0.37, Mn ≤ 0.65, P ≤ 0.035, S ≤ 0.035 |
| 16Mn | C ≤ 0.18, Si ≤ 0.37, Mn ≤ 1.25, P ≤ 0.035, S ≤ 0.035 |
(Chemical composition is indicated as the maximum percentage of each element.)
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|
| 10 | ≥ 335 | ≥ 205 | ≥ 24 |
| 20 | ≥ 410 | ≥ 245 | ≥ 20 |
| 35 | ≥ 510 | ≥ 305 | ≥ 17 |
| 45 | ≥ 590 | ≥ 335 | ≥ 14 |
| 16Mn | ≥ 490 | ≥ 305 | ≥ 20 |
(Mechanical properties are tested in accordance with relevant standards.)
GB/T 8162 classifies the precision steel tubes based on different steel grades. The commonly used steel grades include:
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.
