GB/T16270 Q550D material is a high strength structural steel plates.
Q550 steel has four steel quality grades: C, D, E, F. Q550D steel plates are delivered in the quenched and tempered condition.
GB/T16270 Q550D chemical composition
|
Grade |
C |
Si |
Mn |
P |
S |
Cu |
Cr |
|
Q550D |
≤0.20 |
≤0.80 |
≤1.70 |
0.025 |
0.015 |
0.50 |
1.50 |
|
Ni |
Mo |
B |
V |
Nb |
Ti |
- |
|
2.00 |
0.70 |
0.005 |
0.12 |
0.06 |
0.05 |
- |
GB/T16270 Q550D mechanical properties
|
Grade |
Thickness |
Yield strength |
Tensile strength |
Elongation |
Impacting Test |
|
Temperature |
V |
|
Q550D |
≤50 |
550 |
640-820 |
16 |
-20 |
47 |
|
50-100 |
530 |
640-820 |
|
100-150 |
490 |
590-770 |
Technical Requirements & Additional Services:
Low temperature impacting test
Cutting and welding as per end user’s demands
More striction on some chemical elements contains
Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
Ultrasonic test under GB/T2970,JB4730,EN 10160,ASTM A435,A577,A578
Katalor is a GB/T16270 Q550D steel plates supplier and exporter, producing various sizes of Q550D steel plates with competitive price. If you are interested in GB/T16270 Q550D steel plates, and ask for the Q550D steel quotation, pls send email to us [email protected].
