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Covering various types of steel products such as steel pipes, steel plates, steel coils, steel bars, and structural steel
meeting the diverse needs of different industries.

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Q235B Carbon Steel Coil

Q235B carbon steel coil is a widely used mild steel material known for its high strength, excellent weldability, and cost-effectiveness. It is suitable for construction, automotive, machinery, and structural applications.
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Product Description

Specifications Table


Property

Value / Range

Grade

Q235B (equivalent ASTM A36 / SS400)

Thickness

1.2 mm – 25 mm

Width

600 mm – 2000 mm

Coil Weight

3 – 15 MT per coil

Surface Treatment

Hot Rolled / Pickled / Oiled / Galvanized

Density

7.85 g/cm³

Tensile Strength

370 – 500 MPa

Yield Strength

≥ 235 MPa

Elongation

20 – 26%


Chemical Composition (%)


C

Si

Mn

P

S

≤0.20

≤0.35

≤1.4

≤0.045

≤0.045


Key Features


  • Good plasticity and toughness

  • Excellent weldability, suitable for all conventional welding methods

  • Cost-effective general structural material

  • Available in hot-rolled and galvanized versions

Applications

  • Construction and building materials

  • Shipbuilding and bridge structures

  • Automotive body panels and frames

  • Industrial machinery manufacturing

Quality Control

  • Produced according to GB / ASTM / JIS standards

  • Surface inspection for rust, scale, and flatness

  • Mechanical testing for tensile and yield strength

Packaging & Delivery

  • Strapped with steel bands and edge-protected

  • Waterproof wrapping to prevent corrosion

  • Delivered in coil form, suitable for container or bulk shipment


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FAQ


Q1: What product information must I provide before making a purchase?

A: Please provide the material, size, surface treatment requirements, and the quantities you need.

Q2: What about product pricing information?

A: Prices may vary due to fluctuations in raw material costs.

Q3: Is it possible to send samples?
A: Yes, we offer free samples with express shipping worldwide.

Q4: Do you offer a service for customized products?
A: Yes, we can supply according to your specific requirements.

Q5: Can I visit you in person?
A: Customers from all over the world are welcome to meet with us.

Q6: Can you assist me in importing steel products for the first time?
A: Yes, we can provide support through our experienced shipping agents.



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SUBMIT

Quality and After-sale Assurance

Reliable Quality – All products are made with premium raw materials, advanced equipment, and strict quality inspections before delivery.

Compliance Guarantee – Specifications strictly follow technical agreements, ensuring products are free from defects in design, materials, and workmanship.

After-sales Service – Dedicated teams provide timely response, technical consultation, and long-term support.

Global Commitment – We serve clients in over 50 countries with consistent quality and reliable service.