Carbon Steel Grades Supplier and Product Range
Huaxiao Metal supplies a wide range of carbon steel grades for structural, industrial, construction, machinery, automotive, and engineering applications worldwide.
Multiple Standards
ASTM/EN/DINGB/JIS
Complete Grades
Q235,Q345,A36,1045,S355JR,SS400 and more
Quality Guarantee
MTC EN 10204 3.1& Third-Party Inspection
Global Export
Serving 60+ Countries Worldwide
15+ Years
Industry Experience
OEM & Custom
Processing Support
Seaworthy Packaging
Reliable Delivery
Fast Response
Professional Support
Available Carbon Steel Grades
Huaxiao Metal supplies multiple carbon steel grades for export projects and industrial manufacturing requirements.
Carbon Steel Products by Form — Which Shape Do You Need?
Each carbon steel grade is available in multiple product forms. Select the form that matches your manufacturing process.
Available Products
- Hot Rolled Carbon Steel
- Cold Rolled Steel
- Pickled Steel Coil
- Galvanized Carbon Steel
Available Grades
- Q235
- Q345
- A36
- SS400
- SAE1008
- SAE1010
Applications
- Steel fabrication
- Pipe manufacturing
- Construction
- Automotive parts
- Machinery manufacturing
Available Carbon Steel Grades Standards and Equivalents
In global engineering and procurement, cross-referencing carbon steel grades across international standards is essential to guarantee mechanical compliance. At Huaxiaometal, we source and process carbon steel strictly conforming to major global frameworks: ASTM (USA), EN (Europe), JIS (Japan), and GB (China).
Below is the 2026 comprehensive equivalence matrix for commercial, structural, and pressure vessel carbon steel grades available in our inventory:
1. Global Carbon Steel Grade Equivalence Table
| Steel Type & Application | American Standard (ASTM/ASME) | European Standard (EN 10025 / EN 10028) | Japanese Standard (JIS G3101 / G3106) | Chinese Standard (GB/T 700 / GB/T 1591) | Huaxiaometal Processing & Supply Options |
|---|---|---|---|---|---|
| Mild / Low-Carbon Steel (General fabrication, profiling, and bending) | ASTM A36 ASTM A283 Gr.C | EN S235JR (1.0038) | JIS SS400 | GB Q235B | Hot-rolled & cold-rolled sheets, custom slitting strip, precision leveling. |
| High-Strength Structural Steel (Heavy infrastructure, cranes, machinery) | ASTM A572 Gr.50 ASTM A709 Gr.50 | EN S355JR EN S355J2 (1.0577) | JIS SM490 JIS SS490 | GB Q355B GB Q355D | Heavy plates up to 150mm, shot-blasted & primed finishes, custom H-beams. |
| Boiler & Pressure Vessel Steel (Storage tanks, boilers, oil & gas industry) | ASTM A516 Gr.70 ASTM A285 Gr.C | EN P355GH (1.0473) | JIS SB450 JIS SPV355 | GB Q345R | Ultrasonic testing (UT) Class A/B compliant, heavy-wall rolling. |
| Medium Carbon / Machine Steel (Gears, axles, high-fatigue mechanical parts) | AISI / SAE 1045 | EN C45 (1.0503) | JIS S45C | GB 45# Steel | Bright drawn bars, forged blocks, precision tolerance sheets. |
2. Critical Metallurgical Parameters & Technical Verification
Understanding the alphanumeric codes prevents catastrophic engineering errors during substitution. When sourcing from Huaxiaometal, our engineering team ensures identical mechanical performance through rigid quality verification:
Yield Strength (ReH) Matching: We guarantee that substituting GB Q355B or JIS SM490 for an ASTM A572 Gr.50 project will meet or exceed the required minimum yield strength of 345 MPa (50 ksi).
Charpy V-Notch Impact Testing: For low-temperature structural builds, we match the impact requirements. For example, EN S355J2 requires impact testing at -20°C, which we perfectly satisfy using cross-verified GB Q355D grade material from premier mills like Shougang and Baosteel.
Carbon Equivalent Value (CEV) Control: For structural projects requiring heavy welding, we maintain a low CEV (typically \(\le 0.43\%\)) to maximize weldability and eliminate heat-affected zone (HAZ) cracking risks.
Custom Carbon Steel Processing Services
Huaxiao Metal provides customized carbon steel processing and OEM manufacturing services for industrial fabrication, construction, machinery, and engineering projects worldwide.
Our processing capabilities help customers reduce fabrication time, optimize material utilization, and improve production efficiency.
Precision Slitting & Coil Processing
Wide carbon steel coils can be processed into custom-width steel strips through automated slitting lines.
Available Services
- Coil slitting
- Cut-to-length processing
- Precision blanking
- Edge trimming
Processing Capability
- Strip width: from 10 mm
- Tight thickness tolerance control
- High-volume production support
CNC Cutting & Plate Fabrication
We provide custom steel cutting services for carbon steel plates, sheets, and structural components.
Available Equipment
- Fiber laser cutting
- Plasma cutting
- Flame cutting
- High-speed sawing
Applications
- Structural steel fabrication
- Industrial equipment
- Machinery components
- Construction projects
Structural Welding & Fabrication
Huaxiaometal supports welding and fabrication services for heavy steel structures and industrial assemblies.
Welding Processes
- MIG welding
- TIG welding
- Submerged Arc Welding (SAW)
All welding operations can be performed according to project specifications and international fabrication standards.
CNC Machining & Drilling Services
Our CNC machining centers provide precision machining for industrial steel components.
Available Machining Services
- Drilling
- Milling
- Tapping
- Counterboring
- Surface machining
Applications
- Base plates
- Flanges
- Structural components
- Machinery parts
Surface Treatment & Galvanizing
To improve corrosion resistance and outdoor durability, multiple surface finishing options are available.
Available Treatments
- Hot-dip galvanizing (HDG)
- Electro-galvanizing
- Industrial coating
- Anti-rust painting
These treatments are suitable for structural steel, outdoor equipment, and industrial applications.
Industrial Surface Finish Options
Huaxiao Metal supplies carbon steel products with multiple surface finishes for structural fabrication, industrial processing, machinery manufacturing, and outdoor applications.
Different surface treatments are available according to welding, machining, coating, and corrosion-resistance requirements.
Hot Rolled Finish (Black Surface)
Standard hot rolled steel surface with natural mill scale.
Features
- Economical solution
- Suitable for structural applications
- Good mechanical strength
- Common industrial finish
Applications
- Steel structures
- Heavy machinery
- Construction projects
- Industrial fabrication
Pickled & Oiled Surface (P&O)
Hot rolled steel processed through acid pickling to remove mill scale, followed by light oil protection.
Features
- Clean steel surface
- Improved processing performance
- Better surface consistency
- Reduced oxidation during storage
Applications
- Laser cutting
- CNC processing
- Bending
- Stamping components
Cold Rolled Surface Finish
Cold rolled carbon steel provides improved dimensional accuracy and smoother surface quality.
Features
- Smooth surface finish
- Tight thickness tolerance
- Better flatness
- Suitable for precision processing
Applications
- Automotive parts
- Appliances
- Precision components
- Powder coating applications
Galvanized & Coated Surface
Galvanized and painted steel products provide improved corrosion resistance for outdoor and industrial environments.
Available Options
- Hot-dip galvanized (HDG)
- Electro-galvanized
- Primer coating
- Industrial painting
Applications
- Roofing systems
- Outdoor structures
- Coastal projects
- Infrastructure construction
Export Packaging & Inspection Support
Huaxiao Metal provides export-standard packaging and inspection support for international carbon steel shipments.
All products are packed according to sea freight transportation requirements to reduce moisture exposure, surface corrosion, and handling damage during long-distance export delivery.
Export Packaging Options
Different packaging solutions are available according to product type, transportation method, and customer requirements.
Standard Packaging Includes
- Waterproof wrapping
- VCI anti-rust paper
- Steel strip reinforcement
- Wooden pallets
- Steel skids
- Protective edge support
Carbon steel coils, sheets, plates, pipes, and bars can be packed for:
- Container shipment
- Breakbulk shipment
- Railway transportation
- Truck delivery
Anti-Corrosion Protection
To reduce oxidation and moisture exposure during transportation and storage, multiple anti-rust protection methods are available.
Available Protection Methods
- Anti-rust oil coating
- Waterproof wrapping
- VCI corrosion protection
- Galvanized outer cover sheets
Packaging solutions can be customized for humid, coastal, and long-distance shipping environments.
Mill Test Certificates (MTC)
Mill Test Certificates are available for carbon steel products according to international inspection standards.
Available Documentation
- EN 10204 3.1 certificates
- Chemical composition reports
- Mechanical property reports
- Heat number traceability
- Dimension inspection reports
Third-Party Inspection Support
Huaxiaometal supports independent third-party inspection before shipment.
Available Inspection Services
- Visual inspection
- Quantity verification
- Thickness measurement
- Ultrasonic testing (UT)
- Packing inspection
- Loading supervision
Third-party inspection agencies may include:
- SGS
- Bureau Veritas (BV)
- TÜV
Why Choose Huaxiao Metal?
15+ Years Industry Experience
Experienced in global carbon steel export, industrial supply, and project support.
60+ Export Countries
Serving customers across Southeast Asia, Middle East, South America, Africa, and Europe.
Multiple Steel Standards
ASTM, AISI, EN, DIN, GB, and JIS carbon steel grades available.
OEM Processing Support
Slitting, CNC cutting, welding, drilling, galvanizing, and custom fabrication services.
MTC & Third-Party Inspection
EN 10204 3.1 certificates and SGS / BV / TÜV inspection support available.
Flexible Export Packaging
Seaworthy packaging for container, breakbulk, and long-distance shipment.
Fast Technical Response
Quick quotation support and technical assistance for industrial projects worldwide.
FAQ
What carbon steel grades do you supply?
We supply a wide range of carbon steel grades including Q235, Q345, ASTM A36, SAE 1045, S355JR, SS400, and other international standards for industrial and structural applications.
How do I choose the right carbon steel grade for my project?
Use our 3-step framework:
(1) Determine required hardness — low carbon for formability, medium for balanced strength, high carbon for wear resistance.
(2) Check your industry standard — ASTM A36 for construction, 1045 for machinery, 1095 for blades, 4140 for high-stress parts.
(3) Specify product form — plate, sheet, coil, strip, bar, pipe, or wire.
Our engineers can recommend the optimal grade based on your application, budget, and processing requirements.
What international standards do your carbon steel grades conform to?
Our carbon steel grades comply with major international standards including ASTM/ASME (A36, A572, A516), EN (S235JR, S355JR, C45, 42CrMo4), JIS (SS400, SM490, S45C), and GB (Q235B, Q345B, 45#). Cross-reference equivalents are available upon request. Custom grades produced to your national standard are also available.
What carbon steel product forms are available?
Available products include:
- Carbon steel coil
- Steel plate
- Steel sheet
- Steel pipe
- Structural steel
- Steel bar
Custom dimensions and OEM processing are available.
Can you provide customized cutting and processing services?
Yes. Huaxiao Metal provides slitting, cut-to-length processing, CNC cutting, drilling, welding, galvanizing, and other customized fabrication services according to customer drawings.
Do you provide Mill Test Certificates (MTC) for each grade?
Yes. Every shipment includes full Mill Test Certificates (EN 10204 3.1) showing chemical composition, tensile strength, yield strength, elongation, and impact test results for the specific heat/lot. Third-party inspection by SGS, Bureau Veritas, or TÜV is available upon request.
Can third-party inspection be arranged before shipment?
Yes. SGS, BV, TÜV, and other third-party inspection services can be arranged before loading.
Can you supply carbon steel grades in small quantities for trial orders?
Yes. Our standard MOQ is 1 ton, but we welcome sample and trial orders for new projects. For common grades like A36, 1045, and 1018, we can often supply cut-to-size pieces or partial coils. Contact us with your grade, dimensions, and quantity — we’ll find a solution.
Which countries do you export to?
We export carbon steel products to Southeast Asia, Middle East, South America, Africa, and Europe for construction, machinery, infrastructure, and industrial projects.
How do you protect steel products during export shipping?
All products are packed with export-standard seaworthy packaging, including waterproof wrapping, anti-rust protection, steel strip reinforcement, and pallet support.
Which carbon steel grade is most cost-effective for general construction?
For general construction and structural fabrication, A36 and Q235B are the most cost-effective choices. They offer good weldability, adequate strength for most building applications, and are widely available in plate, bar, and structural shapes. S235JR (EN equivalent) is the European-market alternative at a similar price point. Expect pricing around $500–700/ton depending on quantity and market conditions.
Get Your Carbon Steel Grade Recommendation & Price Today
Need help selecting the right carbon steel grade?
Huaxiao Metal supplies structural, low-carbon, medium-carbon, and high-strength carbon steel grades for construction, fabrication, machinery, pipeline, and industrial applications.
Our team can help you with:
- Steel grade selection
- International grade equivalents
- Processing recommendations
- Export packaging solutions
- Technical documentation support
Submit your inquiry today for fast quotation and technical assistance.
