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The GB/T 3639 Q355B seamless cold drawn steel tube is specifically designed for precision applications. This high-quality steel tube is widely used in various industries due to its exceptional mechanical properties and precise dimensions. In this article, we will explore the material, specification, chemical composition, mechanical properties, and applications of the GB/T 3639 Q355B seamless cold drawn steel tube.
The GB/T 3639 Q355B seamless cold drawn steel tube is made from high-quality Q355B steel. Q355B is a low alloy steel with excellent mechanical properties, including high strength, good toughness, and superior weldability. This makes it an ideal choice for precision applications where reliability and durability are crucial.
The GB/T 3639 Q355B seamless cold drawn steel tube adheres to the following specifications:
| Element | Chemical Composition (%) |
|---|---|
| C (Carbon) | 0.18 - 0.22 |
| Si (Silicon) | 0.15 - 0.30 |
| Mn (Manganese) | 1.20 - 1.60 |
| P (Phosphorus) | ≤ 0.030 |
| S (Sulfur) | ≤ 0.030 |
| Cr (Chromium) | ≤ 0.30 |
| Ni (Nickel) | ≤ 0.30 |
| Cu (Copper) | ≤ 0.30 |
| Nb (Niobium) | ≤ 0.10 |
| V (Vanadium) | ≤ 0.10 |
| Ti (Titanium) | ≤ 0.10 |
| Al (Aluminum) | ≤ 0.10 |
| N (Nitrogen) | ≤ 0.012 |
| Property | Value |
|---|---|
| Tensile Strength | ≥ 490 MPa |
| Yield Strength | ≥ 355 MPa |
| Elongation | ≥ 21% |
| Impact Toughness | ≥ 34 J/cm² |
| Hardness (HB) | ≤ 187 |
The GB/T 3639 Q355B seamless cold drawn steel tube finds extensive applications in precision engineering, automotive manufacturing, hydraulic systems, and other industries that require high precision and reliability. It is commonly used for the following purposes:
The exceptional mechanical properties and precise dimensions of the GB/T 3639 Q355B seamless cold drawn steel tube make it an ideal choice for applications where accuracy, strength, and durability are paramount.
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.
