Q890E high-strength steel plate is used manufacture all kinds of construction machinery, such as drilling rigs, electric shovel, electric wheel dump trucks, mining vehicles, excavators, loaders, bulldozers, various types of cranes, coal mine hydraulic supports, etc. Equipment and other structural components.
GBT 16270 Q890E Chemical Composition
|
Grade |
Chemical Composition |
|
Q890E |
The Element Max (%) |
|
C |
Si |
Mn |
P |
S |
Cu |
Cr |
Ni |
Mo |
B |
V |
Nb |
Ti |
|
0.20 |
0.80 |
2.00 |
0.020 |
0.010 |
0.50 |
1.50 |
2.00 |
0.70 |
0.0050 |
0.12 |
0.06 |
0.05 |
GBT 16270 Q890E Mechanical Property
|
Grade |
Mechanical Property |
|
Q890E |
Yield Strength
mm
Min(Mpa) |
Tensile Strength
mm
Min(Mpa) |
Elongation
Min,% |
|
|
|
≤50 |
＞50
|
100 |
＞100
|
150 |
≤50 |
＞50
|
100 |
＞
100
|
150 |
11 |
|
890 |
830 |
- |
940-1100 |
880-1100 |
- |
Q890E Heat treatment process
Q890E steel heat treatment process includes annealing, normalizing, quenching, tempering and surface heat treatment. The tempering includes high temperature tempering, medium temperature tempering and low temperature tempering.
