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Q390 angle steel bars
Q390 angle carbon steel
Q390 is a low alloy high strength structural steel. Comprehensive mechanical properties, weldability, cold, hot working properties and corrosion resistance are good, C, D, E grade steel has good low temperature toughness.
Grade expression: steel grade by the yield strength of the hanyu pinyin letters, yield strength value, quality grade symbols of three parts, for example: Q390C. which: Q - steel yield strength of the "yield" word hanyu pinyin the first letter; 390 -Yield strength value, unit MPa; C-quality grade for the grade (grade is divided into B, C, D, E).
Q390 low alloy angle steel comprehensive mechanical properties, weldability, cold, hot working properties and corrosion resistance are good, C, D, E grade steel has good low temperature toughness.
Ships, boilers, pressure vessels, petroleum storage tanks, bridges, power station equipment, lifting and transportation machinery and other higher loads of welded structural components.
The tensile strength (σb/MPa) of Q390 structural angle is 370-580; the elongation (δ5/%) is (as shown below).
| grade | δ5/% |
| A | ≥19 |
| B | ≥19 |
| C | ≥20 |
| D | ≥20 |
| E | ≥20 |
China angle steel producers--GNEE Group
Q390 steel iron angle
Q390 Chemical composition: (%)
|
grade |
C |
Mn |
Si |
P |
S |
V |
Nb |
Ti |
Al |
Cr |
Ni |
|
A |
≤0.20 |
1.00～1.60 |
≤0.55 |
≤0.045 |
≤0.045 |
0.02～0.20 |
0.015～0.060 |
0.02～0.20 |
- |
≤0.30 |
≤0.70 |
|
B |
≤0.20 |
1.00～1.60 |
≤0.55 |
≤0.040 |
≤0.040 |
0.02～0.20 |
0.015～0.060 |
0.02～0.20 |
- |
≤0.30 |
≤0.70 |
|
C |
≤0.20 |
1.00～1.60 |
≤0.55 |
≤0.035 |
≤0.035 |
0.02～0.20 |
0.015～0.060 |
0.02～0.20 |
≥0.015 |
≤0.30 |
≤0.70 |
|
D |
≤0.20 |
1.00～1.60 |
≤0.55 |
≤0.030 |
≤0.030 |
0.02～0.20 |
0.015～0.060 |
0.02～0.20 |
≥0.015 |
≤0.30 |
≤0.70 |
|
E |
≤0.20 |
1.00～1.60 |
≤0.55 |
≤0.025 |
≤0.025 |
0.02～0.20 |
0.015～0.060 |
0.02～0.20 |
≥0.015 |
≤0.30 |
≤0.70 |
China equal angle Factory--GNEE Group
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GNEE Steel has been committed to manufacturing high quality steel products for domestic and global customers for over 16 years. With improvement, innovation, ambition and rapid growth, we have expanded our partner's business. In the domestic market, we have established long-term and stable relationships with a number of well-known domestic steel manufacturers.
China angle iron Distributors--GNEE Group
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