Carbon Steel Plate/Sheet Supplier & Manufacturer | Huaxiao-Alloy

Q: Q1: What is the difference between hot-rolled and cold-rolled carbon steel plates?

A : Hot-rolled plates are processed at high temperatures for cost efficiency, while cold-rolled sheets undergo room-temperature rolling for precise dimensions and smoother surfaces.

Q: Q2: Can you supply carbon steel plates for cryogenic applications?

A : Yes. ASTM A537 Cl.1 or A516 Gr.70 plates are suitable for LNG tanks and subzero environments.

Q: Q3: Do you offer anti-slip surface treatments for steel plates?

A : Yes. We provide embossed, checkered, or diamond-plate finishes for walkways and stairs.

Q: Q4: What is the MOQ for custom carbon steel plates?

A : MOQ starts at 1 ton. Volume discounts apply for orders exceeding 50 tons.

Q: Q5: How do you ensure corrosion resistance in carbon steel?

A : We offer galvanizing (zinc coating), epoxy painting, or stainless steel cladding.

Q: Q6: Are your carbon steel plates compliant with NACE MR0175 for sour service?

A : Yes. We supply NACE-compliant grades (e.g., ASTM A516 Gr.60 HIC) for oil and gas pipelines.

Q: Q7: Can you provide carbon steel plates with pre-drilled holes?

A : Yes. Specify hole diameter, spacing, and pattern during order placement.

1. Introduction to Carbon Steel Plates/Sheets

Carbon steel plates and sheets are flat-rolled steel products with carbon content ranging from 0.05% to 1.25%, designed for structural, industrial, and precision applications. As a leading carbon steel plate manufacturer and supplier, Huaxiao-Alloy provides a comprehensive range of ASTM, AISI, DIN, JIS, and GB-standard carbon steel plates/sheets, engineered for strength, durability, and cost-efficiency. Our products are trusted in industries such as construction, shipbuilding, automotive, and heavy machinery manufacturing.

Dimensions:
- Thickness: 0.5mm–300mm.
- Width: Up to 4,000mm (plates) / 2,000mm (sheets).
- Length: Up to 18,000mm.
Processing: Laser cutting, bending, punching, and welding.
Packaging: Waterproof wrapping, wooden crates, or customized bundling.
Delivery: FOB/CIF to global ports (e.g., Jakarta, Rotterdam, Houston) in 15–25 days.

2. Carbon Steel Plate/Sheet Grades & Specifications

We supply ALL GRADES of carbon steel plates/sheets, categorized by carbon content and mechanical properties.

2.1 Grade Classification Table

Grade Type	Carbon Content	Key Standards	Example Grades	Primary Applications
Low-Carbon Steel	0.05%–0.25%	ASTM A36, AISI 1008/1010/1018, JIS SS400, EN S235JR	ASTM A36, AISI 1018	Structural frameworks, automotive panels, welding projects
Medium-Carbon Steel	0.25%–0.60%	ASTM A572, AISI 1045, EN C45, DIN 1.1191	AISI 1045, EN C45	Gears, axles, hydraulic cylinders, machinery components
High-Carbon Steel	0.60%–1.25%	ASTM A228, AISI 1095, EN C70, JIS SK5	AISI 1095, EN C70	Cutting tools, springs, blades, high-strength wires
Ultra-High Carbon Steel	1.25%–2.1%	Custom Alloys, ASTM A228	1.8%C, C1100	Precision instruments, specialty tools

2.2 Global Standard Cross-Reference

ASTM	AISI/SAE	DIN	JIS	EN	GB
ASTM A36	1008/1010	1.0038	SS400	S235JR	Q235
ASTM A572	1045	1.1191	S45C	C45	45#
ASTM A228	1095	1.1274	SK5	C70	T10

3. Chemical & Physical Properties

3.1 Chemical Composition (Weight %)

Grade	C	Mn	Si	P (max)	S (max)	Fe
ASTM A36	≤0.26	0.75–1.20	≤0.40	0.04	0.05	Balance
AISI 1045	0.42–0.50	0.60–0.90	0.15–0.35	0.04	0.05	Balance
EN C70	0.67–0.75	0.60–0.90	0.15–0.35	0.025	0.025	Balance
JIS SK5	0.80–0.90	0.10–0.40	0.10–0.35	0.03	0.03	Balance

3.2 Mechanical & Physical Properties

Grade	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)	Hardness (HB)	Impact Toughness (J, -20°C)	Thermal Conductivity (W/m·K)
ASTM A36	400–550	250	20–23	120–160	27–34	50–60
AISI 1045	585–680	505	12–15	170–210	18–25	45–55
EN C70	950–1200	620	5–10	250–300	10–15	40–50
JIS SK5	900–1150	600	6–12	240–290	12–18

4. Technical Advantages of Huaxiao-Alloy’s Carbon Steel Plates/Sheets

As a carbon steel plate supplier and manufacturer, we ensure:

Superior Strength-to-Weight Ratio: Optimized for load-bearing structures (e.g., bridges, warehouses).
Precision Manufacturing: Tight tolerance control (±0.1mm for thickness, ±2mm for width/length).
Custom Heat Treatment:
- Annealing: Softens material for machining.
- Quenching & Tempering: Enhances hardness and wear resistance (e.g., AISI 1095 for blades).
Surface Finishes:
- Hot-Rolled: Mill scale for cost-effective applications.
- Cold-Rolled: Smooth surface for automotive or aesthetic uses.
- Galvanized/Painted: Corrosion protection for outdoor use.

6. Quality Assurance & Certifications

Material Traceability: EN 10204 3.1/3.2 Mill Test Certificates (MTCs) with heat numbers.
Testing Protocols:
- Chemical Analysis: Spectrometry for exact composition verification.
- Mechanical Testing: Tensile, impact (Charpy V-notch), and hardness tests.
- Non-Destructive Testing (NDT): Ultrasonic (UT) and dye penetrant inspection.
Compliance: ASTM, ISO 9001:2015, PED 2014/68/EU, and ASME BPVC.

7. FAQs

Q1: What is the difference between hot-rolled and cold-rolled carbon steel plates?

A: Hot-rolled plates are processed at high temperatures for cost efficiency, while cold-rolled sheets undergo room-temperature rolling for precise dimensions and smoother surfaces.

Q2: Can you supply carbon steel plates for cryogenic applications?

A: Yes. ASTM A537 Cl.1 or A516 Gr.70 plates are suitable for LNG tanks and subzero environments.

Q3: Do you offer anti-slip surface treatments for steel plates?

A: Yes. We provide embossed, checkered, or diamond-plate finishes for walkways and stairs.

Q4: What is the MOQ for custom carbon steel plates?

A: MOQ starts at 1 ton. Volume discounts apply for orders exceeding 50 tons.

Q5: How do you ensure corrosion resistance in carbon steel?

A: We offer galvanizing (zinc coating), epoxy painting, or stainless steel cladding.

Q6: Are your carbon steel plates compliant with NACE MR0175 for sour service?

A: Yes. We supply NACE-compliant grades (e.g., ASTM A516 Gr.60 HIC) for oil and gas pipelines.

Q7: Can you provide carbon steel plates with pre-drilled holes?

A: Yes. Specify hole diameter, spacing, and pattern during order placement.

Why Choose Huaxiao-Alloy?

Global Reach: 50+ countries served, including the USA, Germany, Japan, and Indonesia.
Technical Support: Dedicated engineers for material selection and project optimization.
Competitive Pricing: Direct factory pricing with no intermediaries.
Sustainability: Recyclable materials and energy-efficient production processes.