As a low-alloy high-strength structural steel, GB/T1591-2018 Q355NC steel is suitable for electric power towers, various types of cranes, heavy vehicles, oil derricks, high temperature fans, large electric shovel, dump trucks and drilling rigs, coal mine hydraulic supports, and steel structures.
Q355NC steel advantages
High strength;
Good fatigue resistance;
High toughness and low brittle transition temperature;
Good cold forming performance and welding performance;
It has good corrosion resistance and certain wear resistance.
Q355NC steel tensile requirements
Yield strength min., MPa (in different thickness, mm) |
Tensile strength MPa (in different thickness, mm) |
|
≤16 |
16-40 |
40-63 |
63-80 |
80-100 |
100-150 |
150-200 |
200-250 |
≤100 |
100-200 |
200-250 |
|
355 |
345 |
335 |
325 |
315 |
295 |
285 |
275 |
470-630 |
450-600 |
450-600 |
Q355NC steel elongation
Elongation min., A% (in different thickness, mm) |
|
≤16 |
16-40 |
40-63 |
63-80 |
80-200 |
200-250 |
|
22 |
22 |
22 |
21 |
21 |
21 |
Chemical composition(%, by mass)
C |
Si |
Mn |
P |
S |
Nb |
V |
Ti |
Cr |
Ni |
Cu |
Mo |
N |
Als |
|
≤ 0.20 |
≤ 0.50 |
0.90-1.65 |
≤0.030 |
≤ 0.030 |
0.005-0.050 |
0.01-0.12 |
0.006-0.05 |
≤ 0.30 |
≤ 0.50 |
≤ 0.40 |
≤ 0.10 |
≤ 0.015 |
≤ 0.015 |
Q355NC plate can produce thickness size
Specifications: Thickness: 8-700mm, width: 1600-4000mm, length: 6000-18800mm.
