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GET PRICEQ420q Chemical composition（%）:
| Grade | Quality level | Unified digital code | Chemical composition% | |||||
| C | Si | Mn | F | S | Als | |||
| No greater than | ||||||||
| Q420q | C | L14203 | ≤0.18 | ≤0.50 | 1.20-1.60 | 0.035 | 0.035 | - |
| Q420q | D | L14204 | ≤0.17 | ≤0.60 | 1.30-1.70 | 0.025 | 0.025 | ≥0.015 |
| Q420q | E | L04205 | ≤0.17 | ≤0.60 | 1.30-1.70 | 0.02 | 0.015 | ≥0.015 |
Q420q Mechanical property:
| Grade | Quality level | thickness mm | Yield point σsMPa | Sile strength σbMPa | Elongationδ5 % | V-type impact energy (longitudinal) | ||
| Temperature，℃ | J | Aging，J | ||||||
| Not less than | ||||||||
| Q420q | C | ≤16 | 420 | 570 | 20 | 0 | 47 | 47 |
| ＞16-35 | 410 | 550 | 19 | |||||
| ＞35-50 | 400 | 540 | 19 | |||||
| ＞50-100 | 390 | 530 | 19 | |||||
| D | ≤16 | 420 | 570 | 20 | -20 | |||
| ＞16-35 | 410 | 550 | 19 | |||||
| ＞35-50 | 400 | 540 | 19 | |||||
| ＞50-100 | 390 | 530 | 19 | |||||
| E | ≤16 | 420 | 570 | 20 | -40 | |||
| ＞16-35 | 410 | 550 | 19 | |||||
| ＞35-50 | 400 | 540 | 19 | |||||
| ＞50-100 | 390 | 530 | 19 | |||||
Delivery condition of Q420q steel plate: AR, CR, NR, TMCP, N, T, N+T, Q+T
Q420q steel plate dimension (T*W*L) mm: 4.5-250*1600-4100*L
Our mill has three production lines:
| 2500 production line in the conventional production specifications, the annual output of 1.6 million tons | ||||
| Product thickness mm | Product width mm | Product length mm | Total length of steel plate | Weight of steel plate (tons) |
| 6-≤7 | 1800-2200 | 5200-13000 | 28000 | 2.2-3.0 |
| ＞7-30 | 1600-2300 | 5200-13000 | ≤32000 | 2.2-4.55 |
| 3500 production line in the conventional production specifications, the annual output of 2 million tons | ||||
| Product thickness mm | Product width mm | Product length mm | Total length of steel plate | Weight of steel plate (tons) |
| 10-50 | 2000-4100 | 5500-15000 | ≤36000 | 5.16-7.47/8.34-12.12 |
| ≥50-80 | 2250-3050 | 5500-15000 | ≤36000 | 8.34-12.12 |
| 4300 production line in the conventional production specifications, the annual output of 1.8 million tons | ||||
| Product thickness mm | Product width mm | Product length mm | Total length of steel plate | Weight of steel plate (tons) |
| 6-120 | ≥1500-4100 | 5500-15000 | ≤43000 | 22 max |
| 120-300 | ≥1500-4100 | 5500-15000 | ≤20000 | 44 max |
| 1700 hot-rolled coil, the annual output 3.5 million tons | ||
| Product thickness mm | Product width mm | Volume of steel plate (tons) |
| 1.8-19 | ≥900-1550 | 27.8 max |
The customers of GB / T 714 Q420q bridge steel plate are mainly concentrated in Europe, the Region of the Americas and Middle East. Shanghai Katalor Enterprises Co., Ltd. have a large number of GB / T 714 Q420q bridge steel plate stock in all sizes. If you want to know more details of our stock list and any information about GB / T 714 Q420q bridge steel plate, please feel free to contact us.
