| Application | Bridges, High-Rise Buildings, Offshore Platforms, Heavy Structural Engineering |
| Length | 6000mm - 18000mm |
| Yield Strength | ≥345 MPa (Q345B at ≤16mm) |
| Grade | Q345B / Q345C / Q345D (Equivalent: S355JR/J0/J2, A572 Gr50) |
| Impact Temperature | Q345B: +20°C, Q345C: 0°C, Q345D: -20°C (≥34J) |
| Thickness | 3mm - 300mm |
| Standard | GB/T 1591, EN 10025-2, ASTM A572 |
| Delivery Time | 10-20 working days after order confirmation |
| Packaging Details | Shot blasted SA2.5 surface, steel strip bundled, export wooden pallet, primer coating optional |
| Tensile Strength | 470 - 630 MPa |
| Width | 1500mm - 4500mm |
| Supply Ability | 15000 Tons per Month |
| Payment Terms | T/T, L/C at sight, D/P |
| Brand Name | Baosteel |
| Place of Origin | Shanghai, China |
| Model Number | Q345B-LA-HR |
| Certification | ISO 9001:2015, GB/T 1591, EN 10025 S355JR Equivalent, CE Marking |
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Product Specification
| Application | Bridges, High-Rise Buildings, Offshore Platforms, Heavy Structural Engineering | Length | 6000mm - 18000mm |
| Yield Strength | ≥345 MPa (Q345B at ≤16mm) | Grade | Q345B / Q345C / Q345D (Equivalent: S355JR/J0/J2, A572 Gr50) |
| Impact Temperature | Q345B: +20°C, Q345C: 0°C, Q345D: -20°C (≥34J) | Thickness | 3mm - 300mm |
| Standard | GB/T 1591, EN 10025-2, ASTM A572 | Delivery Time | 10-20 working days after order confirmation |
| Packaging Details | Shot blasted SA2.5 surface, steel strip bundled, export wooden pallet, primer coating optional | Tensile Strength | 470 - 630 MPa |
| Width | 1500mm - 4500mm | Supply Ability | 15000 Tons per Month |
| Payment Terms | T/T, L/C at sight, D/P | Brand Name | Baosteel |
| Place of Origin | Shanghai, China | Model Number | Q345B-LA-HR |
| Certification | ISO 9001:2015, GB/T 1591, EN 10025 S355JR Equivalent, CE Marking | ||
| High Light | Q345B carbon steel plate for bridge construction ,hot rolled low alloy steel plate ,high strength carbon steel plate 3mm-300mm | ||
Our Q345B/C/D low alloy high strength structural steel plate is the Chinese national standard equivalent to EN S355JR/J0/J2 and ASTM A572 Grade 50, designed for demanding structural applications where weight savings and high load-bearing capacity are critical. With yield strength ≥345 MPa — 38% higher than standard A36 — Q345 allows thinner, lighter structures without compromising safety. Available in three impact-tested grades (B: +20°C, C: 0°C, D: -20°C) from 3mm to 300mm, this product is specified in Middle Eastern mega-bridge projects, Southeast Asian high-rise developments, and African infrastructure programs.
| Grade | Q345B / Q345C / Q345D |
| Equivalent Standards | EN S355JR/J0/J2, ASTM A572 Gr50, JIS SM490A |
| Thickness | 3mm - 300mm |
| Width | 1500mm - 4500mm |
| Length | 6000mm - 18000mm (custom longer available) |
| Yield Strength | ≥345 MPa (thickness ≤16mm) |
| Tensile Strength | 470 - 630 MPa |
| Impact Energy | ≥34J (Q345B +20°C, Q345C 0°C, Q345D -20°C) |
Shot blasted to SA2.5 cleanliness with shop primer coating available on request. Plates bundled by size with steel strapping on heavy-duty wooden or steel pallets. MTC EN 10204 3.1 and CE marking documentation provided. Custom cut-to-size by plasma/oxy-fuel. FOB Shanghai/Tianjin, CIF to Middle East, Southeast Asia, and Africa.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2006
Total Annual:
52000000-98000000
Employee Number:
50~100
Ecer Certification:
Verified Supplier
Shandong Heyixin Metal Material Co., Ltd. is located in Liaocheng City, Shandong Province, the beautiful Jiangbei Water City, adjacent to Tianjin and Qingdao, with convenient transportation. It has been focusing on the manufacture and distribution of metal products for many years. Our main products ... Shandong Heyixin Metal Material Co., Ltd. is located in Liaocheng City, Shandong Province, the beautiful Jiangbei Water City, adjacent to Tianjin and Qingdao, with convenient transportation. It has been focusing on the manufacture and distribution of metal products for many years. Our main products ...
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