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Q420A Q420B Q420C Q420D H Shaped Beam
Q420A Q420B Q420C Q420D Steel Beam H
Q420 is a low-alloy high-strength structural steel, the implementation of the standard GB1591-2008. steel grade by the yield strength on behalf of the hanyu pinyin letters, yield strength value, quality grade symbols of three parts.
Q420C h beam profile where: Q - steel yield strength of the "yield" word; 420 - yield strength value, unit MPa; C - quality grade C (grade into A, B, C) C-quality grade C (grades are divided into A,B,C,D,E).
Q420 h steel profile has high strength, good fatigue resistance; high toughness and low brittle transition temperature; good cold forming properties and welding properties; with good corrosion resistance and some wear resistance. High strength, especially in the normalized or normalized plus tempered state has high comprehensive mechanical properties. Large ships, bridges, power station equipment, medium and high-pressure boilers, high-pressure vessels, rolling stock, super-heavy machinery, mining machinery, and other large welded structural components.
China H column steel Supplier--GNEE Group
Q420A Q420B Q420C Q420D H Shape Metal
Q420A Q420B Q420C Q420D Steel H Profile Chemical composition：
|
Grade |
C |
Mn |
Si |
P |
S |
V |
Nb |
Ti |
Al |
Cr |
Ni |
|
A |
≦0.20 |
1.00～1.70 |
≦0.55 |
≦0.045 |
≦0.045 |
0.02～0.20 |
0.015～0.060 |
0.02～0.20 |
- |
≦0.40 |
≦0.70 |
|
B |
≦0.20 |
1.00～1.70 |
≦0.55 |
≦0.040 |
≦0.040 |
0.02～0.20 |
0.015～0.060 |
0.02～0.20 |
- |
≦0.40 |
≦0.70 |
|
C |
≦0.20 |
1.00～1.70 |
≦0.55 |
≦0.035 |
≦0.035 |
0.02～0.20 |
0.015～0.060 |
0.02～0.20 |
≧0.015 |
≦0.40 |
≦0.70 |
|
D |
≦0.20 |
1.00～1.70 |
≦0.55 |
≦0.030 |
≦0.030 |
0.02～0.20 |
0.015～0.060 |
0.02～0.20 |
≧0.015 |
≦0.40 |
≦0.70 |
|
E |
≦0.20 |
1.00～1.70 |
≦0.55 |
≦0.025 |
≦0.025 |
0.02～0.20 |
0.015～0.060 |
0.02～0.20 |
≧0.015 |
≦0.40 |
≦0.70 |
China Structural Steel Beams Supplier--GNEE Group
GNEE Group Receives Visiting Customers
GNEE Steel has won favorable comments from domestic and foreign industries with its full range of services and low prices. Based on the strategic layout of the enterprise and the global market demand, we have established a long-term and stable relationship with the steel industry, cooperating with Europe, Russia, Germany, the United States, Japan, India and other countries. All products are supplied in accordance with American ASTM/AISI, German DIN, Japanese JIS, Chinese GB standards, and can be supplied according to the technical requirements provided by customers.
China Structural Steel Beams Factory--GNEE Group
We have on-line heavy duty H beam steel products, welcome to visit our company, if you have more needs and questions about other steel products, please feel free to contact us!