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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.

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.