|
[China]
Trade Verify
Address: Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
Contact name:Richard SHEN
TORICH INTERNATIONAL LIMITED |
|
Verified Suppliers
|
|
|
The GB/T 30584 standard specifies the requirements for 20Mn2 precision hot rolled seamless alloy steel pipe used for crane jibs. This article provides detailed information on the material, specifications, key features, chemical composition, mechanical properties, steel grade, application, and possible alternative grades.
20Mn2 is a type of alloy steel that is commonly used in the manufacturing of seamless pipes. It offers superior strength and toughness while maintaining excellent weldability. The material is known for its high tensile strength, ductility, and resistance to wear and abrasion.
The GB/T 30584 standard outlines the specifications for 20Mn2 precision hot rolled seamless alloy steel pipes used specifically for crane jibs. The standard defines various parameters such as pipe dimensions, tolerances, surface finish, and testing requirements to ensure the quality and reliability of the pipes in crane applications.
The 20Mn2 precision hot rolled seamless alloy steel pipe possesses several key features that make it ideal for crane jibs:
The chemical composition of 20Mn2 alloy steel is as follows:
| Element | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) |
|---|---|---|---|---|---|
| Composition | 0.17-0.23% | 0.17-0.37% | 1.40-1.80% | 0.035% max | 0.035% max |
The mechanical properties of 20Mn2 alloy steel are:
| Property | Value |
|---|---|
| Tensile Strength | 690-785 MPa |
| Yield Strength | 450 MPa min |
| Elongation | 15% min |
| Impact Toughness | 55J min (at -20°C) |
| Hardness | 170-217 HB |
20Mn2 is a steel grade that falls under the GB/T 30584 standard. It is a low carbon alloy steel known for its high strength and toughness properties. The steel grade ensures the pipe's structural stability and reliability in crane jib applications.
The 20Mn2 precision hot rolled seamless alloy steel pipe is primarily used for crane jibs in various engineering and construction projects. Its high strength, resistance to wear and abrasion, and excellent weldability make it suitable for withstanding heavy loads and extreme working conditions.
Although 20Mn2 is a commonly used alloy steel grade for crane jib applications, several alternative grades can also be considered based on specific requirements. Some possible alternative 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.
