Centerway Steel Co., Ltd
Centerway Steel Co., Ltd
Centerway Steel Co., Ltd
carbon steel plate,steel coil,stainless steel plate,china export service provider.
carbon steel plate,steel coil,stainless steel plate,china export service provider.
GB/T1591 Q345A is a steel model compared to the Q345C, Q345B steel. Low-temperature impact test has a low test temperature and good performance. Containing harmful substances P, S is lower than Q345A, B.
GB/T1591 Q390A steel is high strength low alloy steel material. "Q" is the first letter of Chinese Pinyin: "qu fu dian", that means Yield Point, "390" is the minimum value of yield strength 390 MPa for steel thickness ≤16mm. "A" is the quality level. According to GB/T 1591–2008, Q390 material has 5 quality grades: Q390A, Q390B, Q390C, Q390D and Q390E.
GB-T1591 Q420B Low alloy and high strength steel plate, heavy plate and wide, heavy plate
GB/T1591 Q460D steel is a Chinese GB standard (GB/T 1591) high strength low alloy structural steel. Q460D material density is 7.85 g/cm³. Q460D steel is delivered in normalized, normalized rolling, thermomechanical rolling condition.
GB/T1591 Q345A
|
C % |
Si % |
Mn % |
P % |
S % |
N % |
|
≤0.16 |
≤0.55 |
0.80-1.50 |
≤0.040 |
≤0.040 |
… |
|
Thickness |
Yield Strength (Mpa) |
Tensile Strength |
Elongation |
Impact Energy |
|
|
(mm) |
(MPa) |
(%) |
Min |
||
|
≤ 16 |
295 |
390-570 |
23 |
+20℃ |
34J |
|
> 16-40 |
275 |
390-570 |
23 |
+20℃ |
34J |
|
>40 |
255 |
390-570 |
23 |
+20℃ |
34J |
|
The min impact energy is longitudinal energy |
|||||
GB/T1591 Q390A
|
C % |
Si % |
Mn % |
P % |
S % |
N % |
|
≤0.20 |
≤0.55 |
1.00-1.60 |
≤0.045 |
≤0.045 |
… |
|
Thickness |
Yield Strength (Mpa) |
Tensile Strength |
Elongation |
Impact Energy |
|
|
(mm) |
(MPa) |
(%) |
Min |
||
|
≤ 16 |
390 |
490-650 |
19 |
- |
- |
|
> 16-35 |
370 |
490-650 |
19 |
- |
- |
|
>35 |
350 |
490-650 |
19 |
- |
- |
|
The min impact energy is longitudinal energy |
|||||
GB/T1591 Q420B
|
C % |
Si % |
Mn % |
P % |
S % |
N % |
|
≤0.20 |
≤0.55 |
1.00-1.70 |
≤0.040 |
≤0.040 |
… |
|
Thickness |
Yield Strength (Mpa) |
Tensile Strength |
Elongation |
Impact Energy |
|
|
(mm) |
(MPa) |
(%) |
Min |
||
|
≤ 16 |
420 |
520-680 |
18 |
20 |
34 |
|
> 16-35 |
400 |
520-680 |
18 |
20 |
34 |
|
>35 |
380 |
520-680 |
18 |
20 |
34 |
|
The min impact energy is longitudinal energy |
|||||
GB/T1591 Q460E
|
C % |
Si % |
Mn % |
P % |
S % |
N % |
|
≤0.20 |
≤0.55 |
1.00-1.70 |
≤0.025 |
≤0.025 |
… |
|
Thickness |
Yield Strength (Mpa) |
Tensile Strength |
Elongation |
Impact Energy |
|
|
(mm) |
(MPa) |
(%) |
Min |
||
|
≤ 16 |
460 |
550-720 |
17 |
-40 |
27 |
|
> 16-35 |
440 |
550-720 |
17 |
-40 |
27 |
|
>35 |
420 |
550-720 |
17 |
-40 |
27 |
|
The min impact energy is longitudinal energy |
|||||
