Black Steel Pipe Q235 Square Hollow Section Carbon Steel Metal Tube Carbon Steel Pipe Tube
Material
The black steel pipe Q235 square hollow section is made of carbon steel, a widely used material in various industries due to its durability, strength, and versatility. Carbon steel is composed primarily of iron and carbon, with trace amounts of other elements such as manganese, phosphorus, sulfur, and silicon.
Specification
The black steel pipe Q235 square hollow section is available in various specifications to meet different application requirements. The specifications commonly used for this type of pipe include:
| Specification | Details |
| Outer Diameter | As per requirement |
| Wall Thickness | As per requirement |
| Length | Customizable |
| Surface Treatment | Black painting, varnish coating, etc. |
| End Treatment | Plain end, beveled end, threaded end |
Chemical Composition
The chemical composition of the black steel pipe Q235 square hollow section generally complies with the following composition ranges:
| Element | Composition Range |
| Carbon | 0.12% - 0.20% |
| Manganese | 0.30% - 0.70% |
| Silicon | 0.17% - 0.37% |
| Phosphorus | 0.045% (maximum) |
| Sulfur | 0.045% (maximum) |
Mechanical Properties
The black steel pipe Q235 square hollow section possesses excellent mechanical properties, making it suitable for various applications. The typical mechanical properties of this carbon steel pipe are as follows:
| Property | Value |
| Tensile Strength | 375 - 460 MPa |
| Yield Strength | 235 MPa (minimum) |
| Elongation | 26% (minimum) |
| Hardness | 60 - 80 HRB |
Steel Grade
The black steel pipe Q235 square hollow section is manufactured from Q235 steel, which is a Chinese standard carbon structural steel. Q235 steel has excellent weldability, formability, and strength properties, making it widely used in construction, machinery, and other industries.
Application
The black steel pipe Q235 square hollow section finds its application in various industries due to its structural integrity and versatility. Some common applications include:
- Construction of steel structures
- Support frames for buildings and bridges
- Mechanical and engineering purposes
- Infrastructure development
- Furniture manufacturing
- Automotive industry
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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.
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
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.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
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.
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