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A572/S355JR Low alloy high strength carbon structural steel
general-purpose low-carbon steel with good weldability, formability and mechanical strength, widely used in construction, bridges and machinery manufacturing. S235JR (EN 10025-2): European standard non-alloy structural steel, equivalent to national standard Q235B, with excellent plasticity and toughness, suitable for static and dynamic load structures. Surface state: hot-rolled black coil (customizable pickling or sandblasting)
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Product Parameters

Product Parameters

Product NameA572/S355JR Carbon Steel Coil
Production ProcessHot Rolling, Cold Rolling
Material StandardsAISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, etc.
Width45mm-2200mm
LengthCustom Size
ThicknessHot Rolling: 2.75mm-100mm
Cold Rolling: 0.2mm-3mm
Delivery ConditionsRolling, Annealing, Quenching, Tempered or Standard
Surface ProcessOrdinary, Wire Drawing, Laminated Film

Equivalent Grades

GradeUSA (ASTM)Europe (EN)Japan (JIS)
A572A572 Grade 50-SM490
S355JR-S355JRSS400

Chemical Composition (wt%)

ElementA572 Grade 50S355JR
C≤0.23≤0.24
Si≤0.40≤0.55
Mn≤1.35≤1.60
P≤0.040≤0.045
S≤0.050≤0.045
Nb/V/TiTrace (for strengthening)-

Mechanical Properties

PropertyA572 Grade 50S355JR
Yield Strength (MPa)≥345≥355
Tensile Strength (MPa)450–550470–630
Elongation (%)≥18 (50mm gauge)≥22 (50mm gauge)
Impact Energy (J, 20°C)-≥27 (Charpy V-notch)
Hardness (HB)≤180≤180

Typical Applications

A572 Grade 50:Bridges & Highways: Girders, support beams.
Construction: Heavy-duty frames, crane booms.
Transportation: Truck chassis, rail cars.
S355JR:Building Structures: Columns, roof trusses.
Machinery: Agricultural equipment, conveyor systems.
General Engineering: Pressure vessels (low-to-medium).


Product Display

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Product Application

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Product Packaging

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Factory Display
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FAQ

Q:Can I get samples before order ?

A:Yes, of course. Usually our samples are free,we can produce by your samples or technical drawings.

Q:Can I go to your factory to visit?

A:Of course, we welcome customers from all over the world to visit our factory.

Q:How can I get a quotation from you ?

A:You can leave us message, and we will reply every message in time. Or we may talk on line.

Q:What product information do I need to provide?

A:You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.

Q:Does the product have quality inspection before loading?

A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we accept the third party inspection absolutely.

Q:What are the advantages of your company?

A:（1）More Than 30 year's Experience

（2）The company is a modern steel enterprise group integrating precision manufacturing, spot warehousing, international logistics, and product deep processing.

（3）World-class production equipment, product quality that meets international certifications, and timely and thoughtful after-sales service

（4）Never stop product research and development and innovation to create high-quality products that meet the global standards.

（5）Integrity business philosophy, the highest quality products, the most reasonable prices, and a global marketing network.

Q:How do we trust your company?

A:We specialise in steel business for years as golden supplier on Alibaba, headquarter locates in liaocheng, Shandong province, you are welcome to investigate in any ways, by all means, you could place an order in Alibaba with trade assurance which could secure your payment.

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