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GET PRICEGB/T 1591 Q420 Low alloy structural plate
GB/T 1591 Q420 steel plate is a kind of low alloy high strength structural steel plate, Q means the yield strength of the steel, 420 means the yield strength value, unit Mpa. GB/T 1591 Q420 Low alloy structural plate has high strength, good anti fatigue performance.
Q420 Low alloy structural plate Chemical Composition:
| Grade | Q420 | ||||
| quality grade | A | B | C | D | E |
| C ≤ | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 |
| Mn | 1.00~1.70 | 1.00~1.70 | 1.00~1.70 | 1.00~1.70 | 1.00~1.70 |
| Si ≤ | 0.55 | 0.55 | 0.55 | 0.55 | 0.55 |
| P ≤ | 0.045 | 0.040 | 0.035 | 0.030 | 0.025 |
| S ≤ | 0.045 | 0.040 | 0.035 | 0.030 | 0.025 |
| V | 0.02~0.20 | 0.02~0.20 | 0.02~0.20 | 0.02~0.20 | 0.02~0.20 |
| Nb | 0.015~0.060 | 0.015~0.060 | 0.015~0.060 | 0.015~0.060 | 0.015~0.060 |
| Ti | 0.02~0.20 | 0.02~0.20 | 0.02~0.20 | 0.02~0.20 | 0.02~0.20 |
| Al ≥ | - | - | 0.015 | 0.015 | 0.015 |
| Cr ≤ | 0.40 | 0.40 | 0.40 | 0.40 | 0.40 |
| Ni ≤ | 0.70 | 0.70 | 0.70 | 0.70 | 0.70 |
Q420 Low alloy structural plate Mechanical Property:
| Grade | quality grade | Yield strength ,Mpa | Tensile | Elongation | |||
| Thickness ,mm | |||||||
| ≤16 | >16~35 | >35~50 | >50~100 | ||||
| Q420 | A | 420 | 400 | 380 | 360 | 520~680 | 18 |
| B | 420 | 400 | 380 | 360 | 520~680 | 18 | |
| C | 420 | 400 | 380 | 360 | 520~680 | 19 | |
| D | 420 | 400 | 380 | 360 | 520~680 | 19 | |
| E | 420 | 400 | 380 | 360 | 520~680 | 19 | |
Delivery condition of GB/T 1591 Q420 Low alloy structural plate:
AR, CR, NR, TMCP, N, T, N+T, Q+T.
GB/T 1591 Q420 Low alloy structural plate Dimension (T*W*L) mm:
4.5-610*1600-4100*L.
GB/T 1591 Q420 Low alloy structural plate has good performance in cold forming and welding, and Q420 Low alloy structural plate has better corrosion resistance and wear resistance.
GB/T 1591 Q420 Low alloy structural plate is widely used in engineering machinery, mining machinery, power station equipment, metallurgical machinery, and other large welded structures.
Our mill has three production lines:
Firstly: 2500mm production line:
| Width | Thickness | Annual capacity |
| 1600-2300mm | 6-30mm | 1,600,000 Tons |
Secondly: 3500mm production line:
| Width | Thickness | Annual capacity |
| 2000-3050mm | 10-80mm | 2,000,000 Tons |
Third: 4300mm production line:
| Width | Thickness | Annual capacity |
| 1500-4100mm | 6-300mm | 1,800,000 Tons |
In addition, we have 1700mm production line for hot rolled coil:
| Width | Thickness | Annual capacity |
| 900-1550mm | 1.2-25.4mm | 3,500,000 Tons |
Shanghai Katalor Enterprises Co., Ltd is a professional GB/T 1591 Q420 Low alloy structural plate manufacturer and supplier. If you have any need of GB/T 1591 Q420 Low alloy structural plate, please do not hesitate to contact us.
