Q420A Adopt standard: GB-T1591 Standard Specification is for Rolled Steels for Welded Structure
Q420A Specification:
Thickness: 1mm to 500mm
Width: 1500mm to 4500mm
Length: 3000mm to 27000mm
Third Party Inspection for Q420A: ABS, DNV, BV, GL, CCS, LR, RINA, KR, NK, CE, SGS, IKE, IEI or other quality department.
Q420A Chemical composition Max % of the Product analysis of grade
|
C |
Si |
Mn |
P |
S |
Nb |
V |
Ti |
|
0.20 |
0.50 |
1.70 |
0.035 |
0.035 |
0.07 |
0.20 |
0.20 |
|
Cr |
Ni |
Cu |
N |
Mo |
B |
Als min |
|
|
0.30 |
0.80 |
0.30 |
0.015 |
0.20 |
- |
- |
|
Q420A Yield strength
|
Nominal thickness (mm) |
To 16 |
16-40 |
40-63 |
63-80 |
80- 100 |
100- 150 |
150- 200 |
200- 250 |
250- 400 |
|
ReH - Minimum yield strength (MPa) |
420 |
400 |
380 |
360 |
360 |
340 |
- |
- |
- |
Q420A Tensile Strength
|
Nominal thickness (mm) |
To 40 |
40-63 |
63-80 |
80-100 |
100-150 |
150-250 |
250-400 |
|
ReH - Minimum yield strength (MPa) |
520-680 |
520-680 |
520-680 |
520-680 |
500-650 |
- |
- |
Q420A Impact Test degree and energy
|
|
Min Energy Nominal thickness |
||
|
Temperature ℃ |
- |
||
|
Thickness (mm) |
12-150 |
150-250 |
250-400 |
|
Notch impact test. Min. absorbed energy |
- |
- |
- |
Application
Q420A Steel Plate are used in Construction of Bridges, Highway Construction and Other Engineering construction
