Products Description
Chemical composition of Q345 steel plate and Q355 steel plate
Q345 chemical composition of steel plate:
| C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | N | Mo | Als |
| ≤0.18 | ≤0.50 | ≤1.70 | ≤0.030 | ≤0.025 | ≤0.07 | ≤0.15 | ≤0.20 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.012 | ≤0.10 | ≥0.015 |
The chemical composition of Q355 steel plate:
| C | Si | Mn | P | S | Nb | V | Ti | Cr | Ni | Cu | N | Mo | Als |
| ≤0.14 | ≤0.50 | ≤1.60 | ≤0.025 | ≤0.025 | 0.01-0.05 | 0.01-0.10 | 0.006-0.05 | ≤0.30 | ≤0.50 | ≤0.40 | ≤0.015 | ≤0.10 | ≥0.015 |
Uses of Channel bars
Channel bars have various uses in construction.
1.Build walls
Channel bar is used to construct walls for garages, warehouses, workshops, and buildings.
2.Frame support
Channel bar is used to secure window and door frames , stringers and joists.
3.Railings
Channel bar is also used as railings, bridge trusses, and guard rails.
4.Rafters for lightweight roof
Channel bar is also utilized to support the weight of the roof deck.

Product Details
| Product Name | Q345 Q355 Channel C Steel |
| Length | As your required |
| Standard | ASTM/ GB/ JIS/ EN ect. |
| Delivery Time | According to your quantity |
| Payment Terms | FOB/ CIF/ EXW/ DDP |
| Origin | China |
| Sample | Yes |
| Tolerance | ±0.3 |
| Packing | Packed with steel belts tightly, in bundle |
GNEE Group Receives Visiting Customers

GNEE have a professional technician team, which not only have decades working experience in steel industry, but also have a deep and clear insight of the technology condition and the manufacturing state in the Chinese main steel mills.
With the high efficient supervision system and professional experience, we offer our efficient and considerate service to clients around the world. We hope sincerely to become your Chinese supplier and partner.
Our company will remain honest and pragmatic as always to safeguard, strengthen and carry forward our National Brand, provide quality commodities and top-class services to domestic and overseas clients. We sincerely wish to develop long-term win-win cooperation with domestic and overseas clients.



















