Q295GNH grade under GB/T 4171-2008 standard is a high weather resistance structural steel. This kind of steel products is mainly used in structures such as vehicles, containers, buildings, towers or other structural parts. Compared with Q295NH welded weathering steel, they have better atmospheric corrosion resistance.
Q295GNH steel chemical composition:
C |
Si |
Mn |
P |
S |
Cr |
Cu |
Ni |
|
≤0.12 |
0.1-0.4 |
0.2-0.50 |
0.07-0.12 |
≤0.020 |
0.3-0.65 |
0.25-0.45 |
0.25-0.5 |
Q295GNH steel tensile requirements:
Grade |
Yield strength, [MPa] |
Tensile strength, [MPa] |
Elongation/% |
|
Q295GNH |
≥295 |
360-510 |
≥24 |
Q295GN sheet characteristics and uses: high weather resistance structural steel is mainly used for steel structures exposed to the atmosphere for a long time, such as railways, vehicles, bridges, and towers. It also used in the manufacture of structural parts such as containers, railway vehicles, oil derricks, seaport buildings, oil production platforms, and containers containing hydrogen sulfide corrosive media in chemical and petroleum equipment.
