A572 S355JR Carbon Steel Bar

The A572 S355JR Carbon Steel Bar is a high-performance structural-grade carbon steel bar that offers superior strength, weldability, and excellent toughness for heavy-duty applications. Specifically engineered to meet international standards like ASTM A572 Grade 50 and EN10025 S355JR, this bar is ideal for demanding industries such as construction, engineering, manufacturing, and infrastructure projects.

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Key Feature

• Superior Strength & Durability
  Delivers high tensile strength, making it ideal for load-bearing and structural applications.

• Excellent Weldability & Machinability
  Engineered to maintain strength during welding, machining, and fabrication processes.

• International Grade Compatibility
  Meets both ASTM A572 Grade 50 and EN S355JR standards, making it globally recognized.

• Toughness & Impact Resistance
  Performs reliably even under dynamic loads, harsh weather, and heavy machinery stresses.

• Corrosion Resistance (When Coated)
  With proper surface treatment, offers extended corrosion protection.

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Applications Of Carbon Steel Square Bar

• Steel frameworks for bridges, buildings, and towers

• Offshore oil and gas structures

• Industrial heavy equipment frames

• Large-scale crane booms

• Mining and earth-moving machinery

• Wind turbine structures

• Pressure vessels and storage tanks

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Technical Specifications

Property	A572 Grade 50	S355JR
Standard	ASTM A572	EN 10025-2
Yield Strength	≥ 345 MPa	≥ 355 MPa
Tensile Strength	450–630 MPa	470–630 MPa
Impact Toughness	Excellent at -20°C	Excellent at -20°C
Formability	Excellent	Excellent
Weldability	Excellent	Excellent
Surface Finish	Hot Rolled / As Rolled / Custom
Sizes	10mm to 400mm (Custom sizes available)
Lengths	Up to 12 meters (Custom cut-to-length available)

Available Forms

• Square Bar

• Round Bar

• Flat Bar

• Custom Profiles available upon request

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Certifications & Standards

• ASTM A572 Grade 50

• EN 10025-2 S355JR

• ISO 9001 Certified Production

• Full Mill Test Certificates (MTC) available

• Compliance with RoHS and REACH standards

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Storage & Handling Recommendations

• Store indoors or under covered areas

• Protect from moisture and contaminants

• Use appropriate lifting equipment to prevent bending or scratching

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Why Choose Our A572 S355JR Carbon Steel Bar?

• Dual certification (ASTM & EN standards)

• Strict quality control and full traceability

• Superior mechanical properties for critical applications

• Fast delivery and custom fabrication options

• Competitive pricing with global shipping capability

• Professional technical support for your project needs

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FAQ For This Product

What is A572 S355JR Carbon Steel Bar used for?It’s widely used in bridges, high-rise buildings, heavy equipment, offshore structures, and industrial machinery due to its high strength and toughness.Is A572 S355JR suitable for welding?Yes, both A572 Grade 50 and S355JR have excellent weldability characteristics.How does A572 S355JR compare to regular carbon steel?It offers significantly higher yield strength and better impact resistance, especially at low temperatures.Can I get custom sizes and lengths?Yes, we provide custom cutting services according to your project requirements.Do you provide certifications?Yes, full Mill Test Certificates (MTCs) and compliance documentation are available upon request.What standards does this product meet?It meets both ASTM A572 Grade 50 and EN10025 S355JR standards.