Original
By certification 
Description
Steel Structure Plates are plates used in steel structures, which can bear weight or prevent rain and sun. According to the characteristics of the surface, it can be divided into plane steel structure plate and anti-skid steel structure plate. According to the material, it can be divided into beech steel plate and maple steel plate. As the steel structure has strong exhibition space, high strength, extensive design space, and advantages in terms, it is widely used in residential construction, engineering machinery, and other industries.
As a building material, Steel Structure Plates are light in weight. In addition, because steel has good seismic performance and higher structural safety, it also has good ductility, so the safety is higher. We can provide you with high-strength high plates, low-welding steel plates, ultra-high strength steel plates, etc. The quenched steels encountered in cutting are mainly high-quality carbon steels with an average carbon content of about 0.45% and alloy steels with a carbon content of 0.2~0.4%. After quenching and low-temperature tempering, it has high hardness and high brittleness, and its hardness can reach HRC40~60.
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Delivery conditions
TMCP, TMCP+ tempered, quenched and tempered etc.
Steel Grades
Category |
Grade |
Standard |
Remarks |
60-80kg high strength steel plates |
Q420ã€Q460 etc. |
GB/T16270-2009 |
Chinese standards |
Q500ã€Q550 etc. |
GB/T16270-2009 |
Chinese standards |
|
Q620ã€Q690 etc. |
GB/T16270-2009 |
Chinese standards |
|
S460Q/QL/QL1 |
EN10025-6 |
European standards |
|
S550Q/QL/QL1 |
EN10025-6 |
European standards |
|
S690Q/QL/QL1 |
EN10025-6 |
European standards |
|
60-90kg low welding crack sensitive steel plates |
A514 Grade S |
ASTM A514 |
American standards |
Q460CFC/D/E |
YB/T4137-2005 |
Metallurgy standards |
|
Q500CFC/D/E |
YB/T4137-2005 |
Metallurgy standards |
|
Q550CFC/D/E |
YB/T4137-2005 |
Metallurgy standards |
|
Q620CFC/D/E |
YB/T4137-2005 |
Metallurgy standards |
|
Q690CFC/D/E |
YB/T4137-2005 |
Metallurgy standards |
|
Q800CFC/D/E |
YB/T4137-2005 |
Metallurgy standards |
|
Quench and temper ultrahigh strength steel plates |
Q800C/D/E |
GB/T16270-2009 |
Chinese standards |
Q890C/D/E |
GB/T16270-2009 |
Chinese standards |
|
Q960C/D/E |
GB/T16270-2009 |
Chinese standards |
|
S890Q/QL/QL1 |
EN10025-6 |
European standards |
|
S960Q/QL/QL1 |
EN10025-6 |
European standards |
Chemical Composition Maximum (%)
Grade |
C |
Si |
Mn |
P |
S |
Others |
CEV |
Pcm |
Q460 |
0.20 |
0.60 |
1.80 |
0.025 |
0.020 |
Moderate |
0.47 |
/ |
Q550 |
0.18 |
0.60 |
2.00 |
0.025 |
0.020 |
Moderate |
0.47 |
/ |
Q690C/D/E |
0.18 |
0.60 |
2.00 |
0.025 |
0.020 |
Moderate |
0.49 |
/ |
Q800C/D/E |
0.20 |
0.80 |
2.00 |
0.020 |
0.010 |
Moderate |
0.72 |
/ |
Q890C/D/E |
0.20 |
0.80 |
2.00 |
0.020 |
0.010 |
Moderate |
0.72 |
/ |
Q960C/D/E |
0.20 |
0.80 |
2.00 |
0.020 |
0.010 |
Moderate |
0.82 |
/ |
Q460CFC/D/E |
0.12 |
0.50 |
1.80 |
0.020 |
0.010 |
Moderate |
/ |
0.20 |
Q500CFC/D/E | ||||||||
Q550CFC/D/E |
0.12 |
0.50 |
1.80 |
0.020 |
0.010 |
Moderate |
/ |
0.25 |
Q620CFC/D/E | ||||||||
Q690CFC/D/E | ||||||||
Q800CFC/D/E |
0.12 |
0.50 |
1.80 |
0.020 |
0.010 |
Moderate |
/ |
0.28 |
A514 Grade S |
0.21 |
0.45 |
1.50 |
0.035 |
0.020 |
Moderate |
/ |
/ |
S460QL S500QL |
0.20 |
0.80 |
1.70 |
0.020 |
0.010 |
Moderate |
0.47 |
/ |
S550QL S620QL |
0.20 |
0.80 |
1.70 |
0.020 |
0.010 |
Moderate |
0.65 |
/ |
S690QL |
0.20 |
0.80 |
1.70 |
0.020 |
0.010 |
Moderate |
0.65 |
/ |
S890QL |
0.20 |
0.80 |
1.70 |
0.020 |
0.010 |
Moderate |
0.72 |
/ |
S960QL |
0.20 |
0.80 |
1.70 |
0.020 |
0.010 |
Moderate |
0.82 |
/ |
Mechanical Properties
Grade |
Thickness, mm |
Yield Strength Rp0.2, MPa Min |
Tensile Strength Rm, MPa |
Elongation Min., % Min |
Impact Absorbed |
Bend 180° d=3a |
|
Temp, ℃ |
J |
||||||
Q460C |
≤16 |
460 |
550～720 |
18 |
0 |
34 |
/ |
＞16～40 |
450 |
/ |
|||||
＞40～63 |
430 |
17 |
/ |
||||
＞63～100 |
410 |
/ |
|||||
Q550MC/D/E |
≤16 |
550 |
670～830 |
16 |
（C）0 （D）-20 |
55 47 |
/ |
＞16～40 |
540 |
/ |
|||||
＞40～63 |
530 |
620～810 |
/ |
||||
＞63～80 |
510 |
600～790 |
/ |
||||
Q690MC/D/E |
≤16 |
690 |
770～940 |
14 |
（C）0 |
55 |
/ |
＞16～40 |
680 |
750～920 |
/ |
||||
＞40～63 |
670 |
（E）-40 |
31 |
/ |
|||
＞63～80 |
650 |
730～900 |
/ |
||||
Q800C/D/E |
≤50 |
800 |
840～1000 |
13 |
(C）0 |
34 |
/ |
Q890C/D/E |
≤50 |
890 |
940～1100 |
11 |
/ |
||
Q960C/D/E |
≤50 |
960 |
980～1150 |
10 |
/ |
||
Q460CFC/D/E |
≤50 |
460 |
550～710 |
17 |
（C）0 （D）-20 |
47 |
OK |
＞50～80 |
440 |
OK |
|||||
Q500CFC/D/E |
≤50 |
500 |
610～770 |
17 |
OK |
||
＞50～80 |
480 |
OK |
|||||
Q550CFC/D/E |
≤50 |
550 |
670～830 |
16 |
OK |
||
＞50～80 |
530 |
OK |
|||||
Q620CFC/D/E |
≤50 |
620 |
710～880 |
15 |
OK |
||
＞50～80 |
600 |
OK |
|||||
Q690CFC/D/E |
≤50 |
690 |
770～930 |
14 |
OK |
||
＞50～80 |
670 |
OK |
|||||
Q800CFC/D/E |
≤50 |
800 |
880～1050 |
12 |
OK |
||
A514Grade S |
≤65 |
690 |
760～895 |
18(A50) |
-40 |
30 |
/ |
S460Q/QL/QL1 |
≤50 |
460 |
550～720 |
17 |
（Q）-20 （QL）-40 |
27 |
/ |
50～100 |
440 |
/ |
|||||
S500Q/QL/QL1 |
≤50 |
500 |
590～770 |
17 |
/ |
||
50～100 |
480 |
/ |
|||||
S550Q/QL/QL1 |
≤50 |
550 |
640～820 |
16 |
/ |
||
50～100 |
530 |
/ |
|||||
S620Q/QL/QL1 |
≤50 |
620 |
700～890 |
15 |
/ |
||
50～100 |
580 |
/ |
|||||
S690Q/QL/QL1 |
≤50 |
690 |
770～940 |
14 |
/ |
||
50～100 |
650 |
760～930 |
/ |
||||
S890Q/QL/QL1 |
≤50 |
890 |
940～1100 |
11 |
/ |
||
50～100 |
850 |
880～1100 |
/ |
||||
S960Q/QL/QL1 |
≤50 |
960 |
980～1150 |
10 |
/ |
||
Available Size
60-80kg high strength steel plates
60-90kg low welding crack sensitive steel plates quenched and tempered ultra-high strength steel plates
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