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Send Message| Style |
Grade |
Standard |
Spec (mm) Coil |
Spec (mm) Plate |
Characteristic |
Application Area |
| corrosion resistant steel for Railway Vehicle |
A709M 50W A709M HPS50W A709M HSP70W Q345qNH Q370qNH Q420qNH Q460qNH Q500qNH Q550qNH |
ASTM A709M GB/T 714 OR Technical Agreement |
1.5-19mm | 6-50mm |
The atmospheric corrosion resistance is better than ordinary bridge steel |
mainly used for Bridge Construction, increased longevity. |
| Grade | Chemical Component/% | |||||||||||
| C | Si | Mn | Nb | V | Ti | Cr | Ni | Cu | Mo | N | ALs | |
|
A709M HPS50W A709M HSP70W |
≤0.11 |
0.30- 0.50 |
1.10 - 1.35 |
AL: 0.01 - 0.04 |
0.04 - 0.08 |
Mo: 0.02 - 0.08 |
0.45 - 0.70 |
0.25 - 0.40 |
0.25 - 0.40 |
|||
| Q345qNH |
≤0.11 |
0.15 ~ 0.50 |
1.10 ~ 1.50 |
0.01 ~ 0.10 |
0.01 ~ 0.10 |
0.003 ~ 0.030 |
0.40 ~ 0.70 |
0.30 ~ 0.40 |
0.25 ~ 0.50 |
≤0.10 |
≤0.008 |
0.015 ~ 0.050 |
| Q370qNH | ≤0.15 | |||||||||||
| Q420qNH | ≤0.20 | |||||||||||
| Q460qNH | ||||||||||||
| Q500qNH |
0.45 ~ 0.70 |
0.30 ~ 0.45 |
0.25 ~ 0.55 |
≤0.25 |
||||||||
| Q550qNH | ||||||||||||
| Mechanical Property | |||
| Grade |
Yield Strength/MPa |
Tensile Strength/MPa |
Elongation/% |
|
A709M HPS50W A709M HSP70W |
≥345 | ≥485 | ≥21 |
| ≥485 | 585-760 | ≥19 | |
| Q345qNH | ≥345 | ≥490 | ≥20 |
| Q370qNH | ≥370 | ≥510 | ≥20 |
| Q420qNH | ≥420 | ≥540 | ≥19 |
| Q460qNH | ≥460 | ≥570 | ≥18 |
| Q500qNH | ≥500 | ≥630 | ≥18 |
| Q550qNH | ≥550 | ≥660 | ≥16 |
Get Free Programme and Budget About Corrosion resistant steel for Steel bridge
