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- +8615769214734
Mild Carbon Steel Plate
Product Name: Mild Carbon Steel Plate
Also Known As: Low Carbon Steel Plate
Int'l Name: Non-Alloy Steel Plate
Company Certs: ISO 9001, ISO 14001
Product Certs: EN 10204 3.1/3.2
Product Standard: ASTM A36, ASTM A283, JIS G3101 SS400, EN S235JR, EN S275JR
Material Grade: Q235, Q255, Fe360
Description
Keywords: mild carbon steel plate, low carbon steel plate, hot-rolled steel plate, HR steel plate, structural steel plate, ASTM A36 plate, EN10025 S235/S275 plate, steel plate supplier
Mild Carbon Steel Plates, also called low carbon steel plates, hot-rolled steel plates (HR plates), or structural steel plates, are widely used in construction, shipbuilding, machinery, automotive, bridges, and heavy equipment fabrication. Our factory produces high-quality mild carbon steel plates in accordance with ASTM A36, ASTM A572, EN10025 S235/S275/S355, and JIS G3101 standards, ensuring uniform thickness, high tensile strength, excellent weldability, and surface quality. Plates are available in various thicknesses, widths, and lengths, supplied with MTC EN10204 3.1 and export-grade packaging suitable for global B2B buyers, EPC contractors, and fabricators.
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High Quality
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Advanced Equipment
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Professional Team
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Custom Service
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
Steel structure buildings, bridges, and construction projects
Shipbuilding and marine structures
Heavy machinery frames and equipment
Automotive and transportation fabrication
Pressure vessels and boiler fabrication
Fabrication of tanks, storage, and industrial platforms
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 – Mild Carbon Steel Plate
Q1: What international standards do your plates follow?
A1: ASTM A36, ASTM A572, ASTM A516, EN10025 S235/S275/S355, JIS G3101.
Q2: Can plates be cut-to-size or slit?
A2: Yes, custom lengths, widths, and edge preparation are available.
Q3: What is the minimum order quantity (MOQ)?
A3: Typically 1 ton for standard stock; 10–25 tons for custom sizes.
Q4: Are plates weldable?
A4: Yes, fully weldable using TIG, MIG, or arc welding.
Q5: Do you provide MTC (Mill Test Certificate)?
A5: Yes, EN10204 3.1 certificates are provided.
Q6: What surface finishes are available?
A6: Hot-rolled black, pickled & oiled, normalized, or sandblasted.
Q7: Can you supply third-party inspection?
A7: Yes, SGS / BV / TUV inspection is available.
Q8: Are your plates suitable for marine and structural applications?
A8: Yes, especially grades S275 and S355 for heavy-duty projects.
Q9: Do you provide export packaging?
A9: Yes, seaworthy wooden crates, steel straps, anti-rust oil applied.
Q10: Can plates be customized for thickness and size?
A10: Yes, we provide full customization according to project requirements.
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