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Steel Coils
Home> Products >  Steel Coils

Hot rolled carbon steel coil

We supply a wide range of grades and specifications, with thickness from 0.17mm to over 20mm, customizable widths, and optional processing services such as slitting and cut-to-length.

With strict quality control throughout smelting, rolling, and inspection, all products can be provided with Mill Test Certificates (EN 10204 3.1).
Tell us your required grade, thickness, and quantity, and our technical team will quickly recommend the most suitable solution for your project.

Description
Product Name Carbon Steel Coil
Material Type Carbon Steel / Mild Steel
Manufacturing Process Hot Rolled (HR) / Cold Rolled (CR)
Thickness 0.3 – 20.0 mm (or as required)
Width 600 – 2000 mm (customizable)
Coil Inner Diameter (ID) 508 mm / 610 mm
Coil Weight 3 – 25 MT (or as required)
Surface Finish Black / Oiled / Pickled
Edge Type Mill Edge / Slit Edge
Steel Grade Q195, Q235, Q345, SAE1006, SAE1008, SAE1010, SAE1020
Standard ASTM, JIS, EN, GB
Application Construction, Machinery Manufacturing, Automotive Parts, Pipes, Steel Structure
Grade correspondence table
China Grade (GB) Equivalent Grades Key Advantages Typical Applications
Q195 SAE1006 / DC01 / SPCC Low carbon content, excellent ductility, easy forming, cost-effective Roofing sheets, light fabrication, stamping parts
Q235 ASTM A36 / S235JR / SS400 Balanced strength and weldability, stable quality, wide application Steel structures, frames, construction, general fabrication
Q345 ASTM A572 Gr.50 / S355JR Higher yield strength, good toughness, suitable for heavy load Bridges, heavy machinery, structural components
Q355 ASTM A572 Gr.50 / S355JR Improved mechanical performance, strong load-bearing capacity Engineering machinery, heavy steel structures
SPHC (HR) ASTM A36 / SS400 Good formability, stable surface quality, easy welding Structural parts, pipes, steel frames
SPCC (CR) SAE1006 / DC01 Excellent surface finish, high dimensional accuracy Cold stamping, automotive panels, home appliances
Production & Quality Control

Carbon Steel Coil Production & Quality Control

From raw material selection to final delivery, KUNYU implements a strict and standardized production process to ensure stable quality of carbon steel coils. Steelmaking, rolling, controlled cooling, and coiling are carried out under carefully monitored conditions to maintain consistent chemical composition, mechanical performance, and dimensional accuracy.

Each batch undergoes systematic inspection, including chemical analysis, mechanical testing, and surface quality checks. Mill Test Certificates (EN 10204 3.1) are available upon request, ensuring full traceability and compliance with international standards.

Steelmaking Process
Hot Rolling Line
Quality Inspection
Steel Coil Packing

Production Flow

Steelmaking → Hot Rolling → Controlled Cooling → Coiling → Inspection → Packing

Competitive Advantage
  • Diverse Specifications

    Diverse Specifications

    Our carbon steel coils are available in a wide range of thicknesses, from as thin as 0.17mm to over 20mm, with widths also customizable according to requirements. This allows you to select specifications based on your project needs, reducing constraints related to material adaptation and simplifying the procurement process by eliminating the need to source from multiple suppliers, thereby lowering management costs.

  • Excellent Processability

    Excellent Processability

    The flexibility in processing carbon steel coils is a standout feature. We also offer one-stop processing services, providing you with components in the desired shapes and sizes. This minimizes the need for secondary processing, effectively shortens production cycles, and reduces investment in equipment as well as energy consumption.

  • Wide Range of Applications

    Wide Range of Applications

    Thanks to their versatile properties and workability, carbon steel coils are widely used in various fields such as automotive manufacturing, hardware products, mechanical components, and the construction industry.

  • Consistent Quality

    Consistent Quality

    Through precisely controlled production processes—including strict oversight of smelting, rolling, and cooling techniques—we ensure that key indicators such as chemical composition, mechanical properties (e.g., strength and hardness), and surface quality consistently meet standard requirements.

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Company Profile

Company Profile

Tianjin Kunyu Juyixiang Technology Co., Ltd. is an international supplier of steel and non-ferrous metal raw materials headquartered in Beichen District, Tianjin. Founded in 2022 with manufacturing roots dating back to our 2010-established steel pipe factory, we integrate production and global trading operations. Leveraging 15+ years of manufacturing expertise and responding to growing international demand, we formed dedicated technical teams and developed tailored supply solutions supported by robust supply chains and deep industry knowledge.

Packing And Shipping

(1)Strict detection during production.

(2)Strict sampling inspection on products before shipment.

(3)Intact product packaging ensured

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Why choose us

GOOD SERVICE
Company personnel solve problems for customers within 24 hours
HIGH-QUALITY
Our perfect product quality management system ensures that our products are highly regarded and well-received by customers
PACKAGING
We offer the most professional packaging, including brand-specific packing or custom packaging as requested by the customer
ENTERPRISE STRENGTH
We have excellent distribution channel and perfect after-sales service in China and overseas.

Photo with our clients

Certificate

FAQ

The steel product price fluctuates widely. Please communicate with us for a quotation before placing an order.

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