Product Overview
Huaxia-Steel supplies ASTM A36 carbon steel plate — the most commonly specified structural steel grade in North America — directly from Chinese mills to international buyers, fabricators, and construction contractors. A36 is a low-carbon structural steel with excellent weldability, formability, and toughness, making it the default choice for buildings, bridges, tanks, and general welded fabrications across the Americas and export markets that reference ASTM standards.
We stock A36 plate in thicknesses from 3 mm to 150 mm, widths up to 2,500 mm, and lengths up to 12 m, with ASTM A6 / A36M full conformance and EN 10204 3.1 certification.
Specifications
| Parameter | Range |
|---|---|
| Thickness | 3 – 150 mm (hot-rolled) |
| Width | 1,000 – 2,500 mm |
| Length | 2,000 – 12,000 mm; cut-to-length available |
| Edge condition | Mill edge or universal mill plate (trimmed) |
| Surface | Mill scale; shot-blasted or pickled on request |
| Flatness | Per ASTM A6 (typical ≤ 8 mm/m for plate ≤ 25 mm) |
Chemical Composition (ASTM A36 / A36M)
| Element | A36 (%) | Comment |
|---|---|---|
| Carbon (C) | ≤ 0.29 (plate ≤ 3/4 in); ≤ 0.26 (plate > 3/4 in) | Weldability driver; lower for thicker plate |
| Manganese (Mn) | 0.80 – 1.20 (plate ≥ 3/8 in) | Strength and toughness |
| Phosphorus (P) | ≤ 0.04 | Ductility control |
| Sulfur (S) | ≤ 0.05 | Machinability and weld quality |
| Silicon (Si) | 0.15 – 0.40 (when required) | Deoxidation |
| Copper (Cu) | ≥ 0.20 (when specified as A36 with copper) | Atmospheric corrosion resistance |
Mechanical Properties (ASTM A36)
| Property | Requirement |
|---|---|
| Yield strength | ≥ 250 MPa (36 ksi) |
| Tensile strength | 400 – 550 MPa (58 – 80 ksi) |
| Elongation (8 in) | ≥ 20% |
| Elongation (2 in) | ≥ 23% |
Dimensional Tolerances (ASTM A6 / A6M)
| Thickness | Tolerance (under, in.) |
|---|---|
| To 3/16 in (4.8 mm), incl | 0.01 |
| Over 3/16 to 5/16 in (4.8 – 7.9 mm) | 0.01 |
| Over 5/16 to 1/2 in (7.9 – 12.7 mm) | 0.02 |
| Over 1/2 to 3/4 in (12.7 – 19.1 mm) | 0.03 |
| Over 3/4 to 1 in (19.1 – 25.4 mm) | 0.04 |
| Over 1 to 2 in (25.4 – 50.8 mm) | 0.05 |
| Over 2 to 4 in (50.8 – 101.6 mm) | 0.06 – 0.08 |
Manufacturing Standards
- ASTM A36 / A36M (structural carbon steel plate)
- ASTM A6 / A6M (general requirements for rolled steel plates)
- ASTM A283 (lower strength alternative when A36 is not required)
- Delivery condition: as-rolled (+AR); normalized (+N) available on request
- Certification: EN 10204 3.1 with ASTM A36 test results
Applications
- Building columns, beams, and floor plates in structural steel frames
- Bridge decks, girders, and connection plates
- Storage tanks, pressure vessels (when code allows A36)
- General welded fabrications: skids, platforms, support steel
- Base plates, anchor bolt templates, and embedment plates
- Sheet piling and retaining wall components
Quality Assurance
- Full ladle chemistry verified against ASTM A36 windows
- Tensile testing per heat; yield, tensile, and elongation reported on certificate
- Dimensional check against ASTM A6 tolerances before packing
- Surface inspection for scale, pits, and edge defects
- Heat-number traceability from ladle to plate stencil
- Optional third-party inspection (SGS, BV, TUV) at mill before shipment
- Optional Charpy V-notch testing at specified temperatures
Packaging and Shipping
- Standard: stacked and secured with steel strapping, wooden separators
- Heat-number stencils on top piece of each stack; packing list cross-referenced
- 20ft container: up to ~26 tonnes for thin plate; break-bulk or flat-rack for thick plate
- Seaworthy packaging with moisture barrier for long ocean routes
- FOB, CFR, CIF, DAP; loading ports: Tianjin, Qingdao, Shanghai
Why Buy A36 Plate from Huaxia-Steel
- Direct mill supply with ASTM A36 / A36M conformance
- Optional normalized delivery for improved toughness and dimensional stability
- Cut-to-size oxy-fuel and plasma cutting available before shipment
- Full traceability, third-party inspection, and export documentation support
Request a Quote
Send us your thickness, dimensions, delivery condition, and quantity for pricing within 24 hours. Email [email protected] or use the inquiry form below.
