Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of Carbon Steel Plate | Hot Rolled Steel Plate Supplier | ASTM A36 / A572 / Mild Steel Plate in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
Carbon steel plate is one of the most widely used industrial materials in construction, manufacturing, shipbuilding, and heavy machinery. It offers excellent strength, weldability, and cost efficiency, making it an ideal choice for structural and engineering applications.
We supply a full range of hot rolled carbon steel plates, including ASTM A36, A572, and other structural grades with customizable thickness, width, and surface finishing options.

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High Quality
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Advanced Equipment
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Professional Team
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Custom Service
Product Overview
Carbon steel plate is classified based on carbon content:
Low carbon steel (<0.25%)
Medium carbon steel (0.25%–0.6%)
High carbon steel (>0.6%)
Each type offers different performance levels in strength, hardness, and ductility, suitable for various industrial uses.
Carbon Steel Plate Specifications
| Item | Specification |
|---|---|
| Product Name | Carbon Steel Plate / Steel Plate |
| Standard | ASTM A36, ASTM A572, EN10025 |
| Thickness | 1.5mm – 300mm |
| Width | 1000mm – 3000mm |
| Length | 2000mm – 12000mm or custom |
| Surface | Black / Oiled / Pickled / Blasted |
| Processing | Cutting, bending, drilling |
| Type | Hot Rolled / Cold Rolled |
| Tolerance | ±0.1mm – ±1.0mm |
Carbon Steel Grades Comparison
| Grade | Strength | Weldability | Main Use |
|---|---|---|---|
| A36 | Medium | Excellent | Construction, structural parts |
| A572 | High | Good | Bridges, heavy engineering |
| A516 | Medium | Good | Pressure vessels |
| 1045 | High | Moderate | Machinery parts |
Standard Dimensions – Mild Carbon Steel Plate (Metric + Imperial)
| Thickness (mm) | Thickness (inch) | Width (mm) | Width (inch) | Length (mm) | Length (inch) | Weight (kg/m²) | Tolerance (mm) | Standard |
|---|---|---|---|---|---|---|---|---|
| 3 – 6 | 0.12 – 0.24 | 1000 – 2000 | 39 – 79 | 2000 – 6000 | 79 – 236 | 23.55 – 47.1 | ±0.2 – 0.5 | ASTM A36 / S235 |
| 6.1 – 12 | 0.24 – 0.47 | 1000 – 2500 | 39 – 98 | 2000 – 6000 | 79 – 236 | 47.4 – 94.8 | ±0.3 – 0.8 | ASTM A36 / S235 |
| 12.1 – 25 | 0.48 – 0.98 | 1250 – 2500 | 49 – 98 | 2500 – 12000 | 98 – 472 | 94.8 – 235 | ±0.5 – 1.0 | ASTM A36 / S275 / S355 |
| 25.1 – 50 | 0.99 – 1.97 | 1500 – 2500 | 59 – 98 | 3000 – 12000 | 118 – 472 | 235 – 470 | ±0.5 – 1.5 | ASTM A36 / S355 |
Notes:
Plate width: 1000–2500 mm; thickness: 3–50 mm; length: 2000–12000 mm
Tolerances comply with ASTM A6 / EN10029 / JIS G3101
Custom sizes available upon request
Chemical Composition (Typical – wt%)
| Grade | C | Mn | Si | P | S | Fe Balance |
|---|---|---|---|---|---|---|
| ASTM A36 / S235 | 0.25 | 0.80 – 1.20 | 0.40 | ≤0.04 | ≤0.05 | Balance |
| ASTM A572 Gr50 / S275 | 0.23 | 1.35 | 0.40 | ≤0.04 | ≤0.05 | Balance |
| ASTM A516 Gr60 / S355 | 0.26 | 0.85 – 1.65 | 0.40 | ≤0.04 | ≤0.05 | Balance |
Mechanical Properties
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| ASTM A36 / S235 | 250 | 400 – 550 | 23 | 119 – 159 |
| ASTM A572 Gr50 / S275 | 345 | 450 – 620 | 18 | 150 – 200 |
| ASTM A516 Gr60 / S355 | 360 | 470 – 630 | 20 | 160 – 210 |
Key Features
Excellent weldability and formability
High tensile and yield strength
Uniform thickness and smooth surface finish
Available in hot-rolled and normalized plates
Compliant with ASTM, EN, and JIS international standards
Suitable for structural fabrication, machinery, shipbuilding, and bridges
Products Applications
Carbon steel plate is widely used in:
Building structures and bridges
Shipbuilding and offshore platforms
Automotive manufacturing
Pressure vessels and boilers
Heavy machinery and equipment
Railway and transportation systems
Storage tanks and industrial fabrication
👉 These applications make it one of the most demanded steel products globally.
Inspection & Quality Assurance
Raw material QC: chemical composition, tensile test, surface inspection
In-process monitoring: thickness, width, flatness, surface quality
Final inspection: dimensional check, hardness, straightness, MTC verification
Third-party inspection: SGS / BV / TUV available
Export packaging: seaworthy wooden crates, steel straps, anti-rust oil coating
6.contact US
Looking for high-quality Mild Carbon Steel Plates for construction, shipbuilding, or machinery fabrication?
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734

FAQ
Q1: What is carbon steel plate?
Carbon steel plate is a flat steel product made primarily from iron and carbon. It is widely used in construction, machinery, shipbuilding, and structural applications due to its strength and cost efficiency.
Q2: What grades of carbon steel plate are commonly used?
The most common grades include ASTM A36, A572, A516, and 1045. Each grade offers different strength, hardness, and application suitability.
Q3: What is ASTM A36 steel plate used for?
ASTM A36 is a low-carbon structural steel widely used in buildings, bridges, base plates, and general engineering structures.
Q4: What is the difference between hot rolled and cold rolled steel plate?
Hot rolled steel plate is produced at high temperatures and is more cost-effective, while cold rolled steel offers better surface finish and tighter tolerances.
Q5: Is carbon steel plate corrosion resistant?
No, carbon steel is not naturally corrosion resistant. It usually requires painting, galvanizing, or other surface treatments for protection.
Q6: What thickness range is available for steel plates?
Carbon steel plates are typically available from 1.5mm to 300mm thickness, depending on the application and grade.
Q7: Can carbon steel plates be customized?
Yes. We provide custom cutting, width adjustment, surface treatment, drilling, and other processing services based on customer requirements.
Q8: What industries use carbon steel plates?
They are widely used in construction, shipbuilding, pressure vessels, automotive manufacturing, heavy machinery, and energy industries.
Q9: How strong is carbon steel plate?
Strength depends on grade and carbon content. Higher carbon content increases hardness and strength but reduces ductility.
Q10: How is carbon steel plate packaged for export?
We use standard seaworthy packaging, including steel strapping, waterproof wrapping, wooden pallets, or steel frames to ensure safe transportation.
Q11: Do you provide mill test certificates (MTC)?
Yes, we provide full Mill Test Certificates including chemical composition, mechanical properties, and quality assurance reports.
Q12: What is the delivery time for carbon steel plate?
Standard sizes usually ship within 7–15 days. Custom orders may require additional production time depending on specifications.
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