GB Standard Q295GNH Weathering Steel Plate
Q295GNH steel plate is a high weathering steel plate , the delivery condition is usually cold rolled, rolled or controlled rolled.Q295GNH weathering steel plate is mainly used for bridges, trains, containers and ships in normal climatic conditions.
Q295GNH steel grade by the "yield strength", "weathering" of the first letter of the hanyu pinyin "Q", "GNH GNH", the yield strength of the lower limit value and the quality grade (A, B, C, D, E).
Q295GNH corten steel plate implementation standard: GB/T 4171-2008.
Q295GNH corten steel sheet has a low yield strength and tensile strength and is available in a variety of treatments and testing options, making it an ideal steel for construction projects.
Q295GNH corten steel panel chemical composition
|
Grade |
The Element Max (%) |
||||
|
Q295GNH
|
C |
Si |
Mn |
P |
S |
|
≤0.12 |
0.20-0.40 |
0.20-0.60 |
0.07-0.15 |
≤0.035 |
|
|
Cr |
Cu |
Ti |
RE |
|
|
|
|
0.25-0.55 |
≤0.10 |
≤0.15 |
|
|
Q295GNH weathering steel sheet mechanical property
|
Tensile strength |
784～539 |
σb/MPa |
|
Yield Strength |
127 |
σ 0.2 ≥/MPa |
|
Elongation |
50 |
δ5≥(％) |
|
ψ |
- |
ψ≥(％) |
|
Akv |
- |
Akv≥/J |
|
HBS |
046～566 |
- |
|
HRC |
30 |
- |
Q295GNH corten steel sheet metal physical property
|
Thermal expansion |
45-53 |
e-6/K |
|
Thermal conductivity |
80-76 |
W/m.K |
|
Specific heat |
450-460 |
J/kg.K |
|
Density |
3469-2540 |
kg/m3 |
|
Resistivity |
0.50-0.60 |
Ohm.mm2/m |
Q295GNH steel plate atmospheric corrosion resistance
High weathering steel by adding a small amount of alloying elements such as: Cu, P, Cr, Ni, etc., so that it forms a protective layer on the surface of the metal matrix, in order to improve the resistance to atmospheric corrosion performance of the steel.Q295GNH steel belongs to the high weathering steel, which is widely used in vehicles, bridges, containers, buildings or other structural components. Compared with weathering steel, high weathering steel has better atmospheric corrosion resistance.
q295GNH weathering steel sheets Products image
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