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GB/T 16270 Q500D steel plate compare to Q690D steel plate
Source:Xin Steel Industry Date:2021/08/25
High strength quenched and tempered steel materials Q500D steel plate and Q690D steel plate comes from chinese standard GB/T 16270 specification.In chemical composition,Q500D steel plate is similar to Q690D steel plate,in mechanical property,Q690D steel plate owned a higher yield strength and tensile strength than Q500D steel plate.Both Q690D steel plate and Q500D steel plate shall be done impact test at low temperature -20 Degree centigrade with minimum 47 J at longitudinal direction.
Q690D steel plate is equal to S690Q steel plate in specification EN 10025-6 high yield strength structural steels in the quenched and tempered condition.Xinsteel Industrial stock the maximum thickness reach to 350mm for Q690D steel plate and Q500D steel plate along with original mill certificates.
GB/T 16270 Q500D steel plate and Q690D steel plate in chemical composition and mechanical property:
|
Q500D and Q690D |
Chemical composition: Heat Analysis Max% | |||||||||||||
|
Standard |
Grade |
C |
Mn |
P |
S |
Si |
Cu |
Cr |
Ni |
Mo |
B |
V |
Nb |
Ti |
|
GB/T 16270 |
Q500D |
0.2 |
1.7 |
0.025 |
0.015 |
0.8 |
0.5 |
1.5 |
2.0 |
0.7 |
0.005 |
0.12 |
0.06 |
0.05 |
|
GB/T 16270 |
Q690D |
0.2 |
1.8 |
0.025 |
0.015 |
0.8 |
0.5 |
1.5 |
2.0 |
0.7 |
0.005 |
0.12 |
0.06 |
0.05 |
|
Mechanical Properties: |
Thickness |
Yield strength |
Tensile strength | |||||||||||
|
Mpa Min. |
Mpa | |||||||||||||
|
GB/T 16270 |
Q500D |
T≤50 |
500 |
590-770 | ||||||||||
|
GB/T 16270 |
Q690D |
T≤50 |
690 |
770-940 | ||||||||||