Structural Frames & Connections
Plate blanks and components for structural assemblies, connections and supporting members.
Global Steel Supply & Processing
ASTM · EN · GB · JIS STRUCTURAL STEEL GRADES
DIRECT FACTORY ENQUIRY
Source carbon steel plate for your fabrication, distribution and structural projects. Send your grade, thickness, plate dimensions, required quantity and destination port to receive a quotation for your order.
Explore 9 structural steel plate grades ↓Find the steel plate grade named in your drawing or purchasing specification. Each grade page provides material-specific mechanical requirements and enquiry details.
General structural plate for fabricated frames, base plates and brackets.
View specifications ↗ ASTM A283/A283MCarbon plate for general structural fabrication and industrial supports.
View specifications ↗ ASTM A572/A572MHigher-strength structural plate for engineered steelwork.
View specifications ↗ GB/T 700Carbon structural steel plate for standard fabrication orders.
View specifications ↗ GB/T 1591High-strength low-alloy steel plate for structural components.
View specifications ↗ EN 10025-2European structural plate with JR impact designation.
View specifications ↗ EN 10025-2European higher-strength structural plate with JR designation.
View specifications ↗ JIS G 3101JIS structural steel plate for equipment and steelwork.
View specifications ↗ JIS G 3106Structural steel plate for welded fabrication and assemblies.
View specifications ↗Send your combined material list with the required quantities and delivery schedule.
Compare grade families quickly, then use the relevant product page and your governing standard to confirm the thickness-specific requirements.
| Steel Grade | Principal Standard | Reference Min. Yield (MPa)* | Purchasing Focus |
|---|---|---|---|
| ASTM A36 | ASTM A36/A36M | 250 | General structural fabrication |
| ASTM A283 Grade C | ASTM A283/A283M | 205 | General-purpose structural plate |
| ASTM A572 Grade 50 | ASTM A572/A572M | 345 | HSLA structural applications |
| Q235B | GB/T 700 | 235 | GB carbon structural steel |
| Q355B | GB/T 1591 | 355 | GB high-strength low-alloy steel |
| S235JR | EN 10025-2 | 235 | European non-alloy structural steel |
| S355JR | EN 10025-2 | 355 | European higher-strength structural steel |
| SS400 | JIS G 3101 | 245 | Japanese general structural steel |
| SM490A | JIS G 3106 | 325 | Japanese welded-structure steel |
*Reference values represent the commonly quoted minimum yield at thinner plate thicknesses, typically ≤16 mm where applicable. Material properties depend on product thickness, standard edition and relevant testing conditions. Check each grade specification before placing your order. A grade comparison guides selection; acceptance follows your chosen standard.
| Steel Products | Hot-rolled structural steel plate; cut sizes and shapes by agreement |
| Grade Families | ASTM A36, A283, A572; EN S235JR, S275JR, S355JR; GB Q235B, Q355B; JIS SS400, SM490A |
| Plate Dimensions | Specify thickness × width × length in millimetres |
| Surface & Edges | As-rolled plate; surface, edge and flatness requirements agreed by order |
| Dimensional Standard | Relevant ASTM A6/A6M, EN 10029, GB/T 709 or JIS G 3193 where applicable |
| Testing & Documentation | Heat analysis, mechanical tests, MTC and extra inspection as specified |
| Purchase Terms | Requested quantity, delivery destination, shipment schedule and packing |
Include the details below to receive price and delivery information for your purchase.
See the plate appearance and specify the dimensional details that matter to your fabrication or distribution order.
Hot-rolled mill scale and the specified surface condition for your grade.
Share your nominal plate thickness, edge requirements, tolerance and cut size.
Estimate the theoretical plate mass for your initial enquiry. Enter nominal plate dimensions and piece count to plan tonnage and transport requirements.
Calculated with a nominal steel density of 7,850 kg/m³. Invoice weight and final shipping weight follow your agreed commercial and measurement terms.
Choose the applicable grade and acceptance requirements for the load, fabrication method and service environment of your project.
Plate blanks and components for structural assemblies, connections and supporting members.
Carbon steel plate used for fabricated machine frames and industrial support structures.
Base plates, stiffeners and bolted connections according to your structural drawings.
Fabricated support units and frames with grade-specific welding procedures.
Plate components for mechanical equipment and installations.
Industrial platforms and support structures selected to the project specification.
Plate parts for engineered projects where the prescribed structural grade is specified.
Standard plate grades purchased by steel service centres and distributors.
Your purchasing team can coordinate steel grades, production, documentation and export delivery with one manufacturing supplier.
Our actual annual production across steel categories is 8 million metric tons, supporting planning for repeat and project orders.
Manufacturing ↗Our regular company-wide inventory reaches 1 million metric tons. Confirm the current stock position for each plate grade and size.
Steel Inventory ↗Send your standard edition, heat traceability and testing requirements for confirmation with the quotation and supply plan.
Quality Control ↗Combine your material schedule, plate dimensions and delivery destination in one enquiry for coordinated pricing.
Our factory operations support large-volume steel production across the product range. Share your requested grades, tonnage and size list so our team can confirm the supply route and production plan for your purchase.
Share your material schedule for a grade-by-grade stock and production check. Your quotation can include lead time, packing method, shipment quantity and destination port.
Include your drawings and tolerances when you need plate blanks or cut components. Our team will confirm the processing method and order conditions with your quotation.
Confirm the steel grade, test requirements, dimensional tolerances and documentation package in your material specification.
Request packing and shipping arrangements suited to your plate sizes, tonnage, unloading conditions and destination. Confirm delivery terms along with your quotation.
Continue sourcing plate products by coating, strength requirements and intended service conditions.
Send your requested ASTM, EN, GB or JIS grade. Browse the nine grade pages above to review the corresponding specifications.
Share your material grade, standard edition, plate thickness, width, length, tonnage, inspection requirements and destination port.
Multiply thickness (mm) × width (mm) × length (mm) × 0.00000785 to estimate kilograms per plate with a nominal steel density of 7,850 kg/m³.
Include your MTC, testing, third-party inspection, packing and shipment requirements in the RFQ. Our team will confirm the applicable supply details.
Send your required grade, dimensions, quantity and destination. Our team will review the inquiry.