LIVE CHAT
GET PRICEGB/T 19879 Q420GJ Building structural steel plate
GB/T 19879 Q420GJ Building structural steel plate has the characteristics of easy welding, shock resistance, low temperature impact, etc. Q420GJ Building structural steel plate is used in high-rise building structure, large span structure and other important building structure.
Q420GJ Building structural steel plate Chemical Composition:
| Grade | C | Si | Mn | P | S | V |
| Q420GJ | 0.18~0.20 | ≤0.55 | ≤1.60 | 0.02~0.025 | ≤0.015 | 0.02~0.20 |
| Nb | Ti | Als | Cr | Cu | Ni | |
| 0.015~0.06 | 0.01~0.03 | ≥0.015 | ≤0.40 | ≤0.30 | ≤0.70 |
Q420GJ Building structural steel plate Mechanical Property:
| Grade | Yield strength (Mpa) | Tensile | Elongation | |||
| Thickness (mm) | ||||||
| 6~16 | >16~35 | >35~50 | >50~100 | |||
| Q420GJ | ≥420 | 420~550 | 410~540 | 400~530 | 520~680 | ≥19 |
Delivery condition of GB/T 19879 Q420GJ Building structural steel plate:
AR, CR, NR, TMCP, N, T, N+T, Q+T.
GB/T 19879 Q420GJ Building structural steel plate Dimension (T*W*L) mm:
4.5-250*1600-4100*L.
GB/T 19879 Q420GJ Building structural steel plate mainly used in high-rise buildings, large span stadiums, airports, convention and Exhibition Center, as well as steel structures, such as large construction projects.
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 19879 Q420GJ Building structural steel plate manufacturer and supplier. If you have any need of GB/T 19879 Q420GJ Building structural steel plate, please do not hesitate to contact us.
