Description
STEEL PLATE & SHEET / HIMOUNT
Bridge And Building Structural Steel Plate
Structural steel plate for bridges, buildings, and welded construction. Confirm grade, thickness, toughness, Z-quality, cutting, drilling, and inspection requirements.



Product Categories
RFQ Checklist
- Standard and grade
- Thickness / diameter
- Width and length
- Coating or surface
- Delivery condition
- Certificate level
- Destination port
Manufacturing & Service
Product Overview
Structural steel plate for bridges, buildings, and welded construction. Confirm grade, thickness, toughness, Z-quality, cutting, drilling, and inspection requirements.
Key Specifications
| Product family | Steel plate and sheet |
|---|---|
| Primary standard / project reference | ASTM A709 / ASTM A572 / EN 10025 by order |
| Grade / material reference | A709 bridge grades, A572 Grade 50, S355 or buyer-specified structural grade |
| Manufacturing route | Hot rolled plate / normalized or controlled rolled condition by order |
| Supply range | Thickness, width, length, grade, delivery condition, impact test, ultrasonic test, surface, and certificate level by buyer specification. |
| Order details to confirm | Standard, grade, thickness or diameter, width/length or coil weight, delivery condition, coating/surface, quantity, packing, certificate level, and destination port. |
International Model Search Index
Common international standard, grade, size and RFQ phrases buyers use when searching or preparing a steel enquiry.
Index terms are for RFQ routing and search visibility. Final supply must follow the ordered standard edition, project specification, drawing, MTC and inspection plan.
Common International Models And Size Keywords
| Common standards | ASTM A709, EN 10025, JIS G3106, GB/T 714, project bridge specification |
|---|---|
| Common grade families | A709 Gr.36/50/50W/HPS, S355J2/N/NL, S420, S460, SM490, Q345q, Q370q, Q420q |
| Common size keywords | Thickness, width, length, cut size, delivery condition, surface, tolerance and MTC; bridge plate; weathering steel; structural plate |
| RFQ confirmation | Fracture critical requirement, Charpy impact, weathering grade, UT, Z-direction and project drawing |
Common RFQ Model Search Keywords
| Grade model examples | ASTM A709 Grade 50, A709 50W, S355J2+N, S355NL, S420NL, SM490, Q345qD, Q370qD, Q420qD |
|---|---|
| Size / order examples | bridge steel plate, weathering bridge plate, fracture-critical plate, Z-direction plate, UT tested plate |
| Buyer search phrases | A709 Grade 50 bridge plate; S355J2 bridge steel plate; weathering bridge steel plate supplier |
International Standard Reference
| Reference | Buyer-facing use |
|---|---|
| ASTM A709/A709M | Bridge structural steel plate reference. |
| ASTM A572/A572M | HSLA structural steel reference. |
| EN 10025 | European structural steel reference. |
Common Export Specification Examples
| Standard family | Common grade / model | Typical export wording | Search phrase examples |
|---|---|---|---|
| ASTM A709 | Gr.36, Gr.50, Gr.50W, HPS 50W | Bridge plate; weathering option; fracture-critical and Charpy requirements by project | A709 Grade 50 bridge steel plate, A709 50W plate |
| EN 10025 | S355J2+N, S355NL, S420NL, S460NL | Bridge/building structural plate; normalized or TMCP delivery | S355J2 bridge plate, S420NL structural plate |
| JIS / GB bridge grades | SM490, SM570, Q345qD, Q370qD, Q420qD | Regional bridge plate orders; UT and Z-direction where specified | Q370qD bridge steel plate, SM490 plate |
Comparable International References
| Reference family | How buyers use it | Quotation note |
|---|---|---|
| ASTM A709/A709M | Structural steel plate, shapes, and bars reference for bridge applications. | Confirm grade, fracture-critical requirements, impact test, and weathering option. |
| EN 10025 S355/S420/S460 | European structural steel plate family for building and infrastructure projects. | Confirm subgrade such as JR/J0/J2/N/NL and CE requirement. |
| JIS G3106 SM400/SM490/SM570 | Japanese welded-structure steel plate comparison family. | Project design code controls final acceptance. |
Applications
- Bulk steel raw-material supply
- Steel structure and fabrication projects
- Machinery, energy, infrastructure, and downstream processing
- Stock, cutting, coating, and export shipment programs
Testing And Documentation
- MTC to ordered standard
- Dimensional and surface inspection
- Chemical and mechanical test report
- Impact, bend, coating, or ultrasonic test when specified
- EN 10204 3.1/3.2 or third-party inspection when required
Packing And Delivery
Bulk steel materials can be supplied as plates, sheets, coils, bars, wire rod coils, bundles, pallets, export seaworthy packages, or project-specific loading units with heat number marking and document packs.
Inquiry Information
Please send product name, standard, grade, size, quantity, delivery condition, coating or surface requirement, packing, destination port, and required certificate or inspection scope.


