Q345NQR3 steel chemical composition, mechanical properties
Q345NQR3 steel under TB/T 1979-2014 standard is a kind of atmoSPHEric corrosion resisting steel. We can supply various shapes in plates, sheets, strips and sections with cutting, drilling, welding service.
Q345NQR3 steel plate chemical composition (%, by mass)
Grade |
C |
Si |
Mn |
P |
|
Q345NQR3 |
≤0.12 |
0.20-0.50 |
0.25-0.70 |
0.06-0.12 |
|
S |
RE |
Cu |
Ti |
|
|
≤0.020 |
0.010-0.040 |
0.25-0.50 |
≤0.030 |
Q345NQR3 steel plate mechanical properties
Grade |
Thickness mm |
Yield strength min |
Tensile strength min |
Elongation % min |
|
Q345NQR3 |
- |
345 Mpa |
480 Mpa |
24 |
TB/T 1979 Q345NQR3 atmospheric corrosion resisting steel has the characteristics of high-quality steel for toughness, plastic elongation, forming, welding, abrasion, high temperature and fatigue. Q345NQR3 cold rolled plate and sheets are special used for manufacturing railway rolling stock.
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