Your Professional Carbon Steel Coil Supplier
Henan Shuangzhong Intelligent Technology Co., Ltd., an expert in precision manufacturing and pipeline system solutions, was founded in 1999. We are a professional manufacturer specializing in precision machining customization, pipeline equipment and pipe fittings customization, as well as the manufacturing and processing of rubber hoses.
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![Mild Steel Coils]()
Mild Steel CoilsMaterial:S235JR, S275JR, S355JR, A36, SS400, Q235, Q355, ST37, ST52, SPCC, SPHC, SPHT, DC01, DC03, etc. Width：600mm-2500mm or customized. Length：Coil, customized. Thickness：0.1mm-200mm or customized. -
![Cold Rolled Carbon Steel Coil]()
Cold Rolled Carbon Steel CoilMaterial: S235JR, S275JR, S355JR, A36, SS400, Q235, Q355, ST37, ST52, SPCC, SPHC, SPHT, DC01, DC03, etc. Length: Coil, or customized. Thickness: 0.1mm-200mm or customized. Width: 600mm-2500mm or -
![Ka70 Carbon Steel Coil]()
Ka70 Carbon Steel CoilMaterial:S235JR, S275JR, S355JR, A36, SS400, Q235, Q355, ST37, ST52, SPCC, SPHC, SPHT, DC01, DC03, etc. Length：Coil, customized. Thickness：0.1mm-200mm or customized. Width：600mm-2500mm or customized. -
![S355jr Carbon Steel Coil]()
S355jr Carbon Steel CoilMaterial:S235JR, S275JR, S355JR, A36, SS400, Q235, Q355, ST37, ST52, SPCC, SPHC, SPHT, DC01, DC03, etc. Length：Coil, customized. Thickness：0.1mm-200mm or customized. Width：600mm-2500mm or customized. -
![Hot Rolled Carbon Steel Coil]()
Hot Rolled Carbon Steel CoilHot Rolled Carbon Steel CoilMaterial:1045, S235JR, S275JR, S355JR, A36, SS400, Q235, Q355, ST37, ST52, SPCC, SPHC, SPHT, DC01, DC03, etc. Length：Coil, customized. Thickness：0.1mm-200mm or customized.
Why choose us
One-Stop Customized Solutions
We are committed to providing customers with one-stop customized solutions — from design support and precision manufacturing to quality assurance — to meet the diverse needs of various industries for high-performance, high-precision, and high-reliability industrial components.
Certification
We ensure quality through comprehensive system certifications: the company has passed the ISO 9001:2015 quality management system certification and the American Petroleum Institute (API) quality certification system.
Sales Market
Our products have been successfully exported to many countries and regions around the world, including the United States, Canada, Germany, India, Malaysia, Pakistan, the United Arab Emirates, Egypt, and the Middle East. We have earned the trust and praise of overseas customers.
On-Site Quality Supervision
We dispatch professional quality inspection teams to supervise the production of steel pipe fittings and rubber hoses. From raw material entry to the shipment of finished products, we maintain strict quality control throughout the process and accommodate special customer requirements, such as product identification and packaging methods.
Product Parameters
|
Material Grade |
S235JR,S275JR,S355JR,A36,SS400,Q235,Q355,ST37,ST52,SPCC,SPHC,SPHT,DC01,DC03,etc |
|
Type |
Coil |
|
Surface Finish |
Pickled, Oiled, Galvanized (optional) |
|
Standard |
ASTM A1011, JIS G3131, EN 10111 |
|
Certificates |
ISO 9001, SGS, BV, Third-party inspection |
|
Production Process |
Hot rolling, cold rolling, annealing |
|
Edge Treatment |
Mill edge or slit edge |
Mechanical Properties
|
Tensile Strength Kb (MPa) |
Yield Strength σ0.2 (MPa) |
Elongation D5 (%) |
Hardness(HB) |
|
370-500 |
≥ 235 |
≥ 20 |
≤ 170 |
Physical Performance
|
Modulus of Elasticity(Gpa) |
Melting Point(°C) |
Density(g/cm³) |
Thermal Conductivity(W/m*K) |
Specific Heat Capacity(kJ/kg·K) |
|
210 |
1450-1520 |
7.85 |
50 |
0.49 |
Material and alloy classification
The material of carbon steel coils is usually composed of iron and carbon alloys. According to the carbon content, carbon steel can be divided into the following categories
Low carbon steel (mild steel)
The carbon content is usually less than 0.3%, with good ductility, weldability and processability, and is often used in construction, home appliances and other fields.
Medium carbon steel
The carbon content is usually between 0.3% and 0.6%, with good strength and plasticity, and is widely used in machinery, automotive parts and structural parts.
High carbon steel
The carbon content is usually higher than 0.6%, with higher hardness and wear resistance, and is often used to manufacture tools, springs and knives, etc.
The specifications of carbon steel coils usually include thickness, width, inner diameter and outer diameter. Common specifications are:
Thickness: The thickness of carbon steel coils usually ranges from 0.2mm to 6mm, which can be customized according to customer needs.
Width: Common widths are 600mm, 1000mm, 1250mm, 1500mm, etc. Different widths are suitable for different industrial needs.
Inner diameter: The inner diameter of carbon steel coils is usually 508mm or 610mm, which is suitable for the storage and transportation of coils.
Outer diameter: The outer diameter of carbon steel coils generally ranges from 600mm to 1500mm, which varies according to the thickness and specifications of the coils.
Carbon steel coils are widely used in many industries due to their excellent processability and low production costs:
Construction industry: Used to manufacture steel structures, steel beams, steel columns, roofs, etc., especially for large-scale construction projects.
Automotive industry: Used to manufacture car bodies, chassis, doors, auto parts, etc. Carbon steel coils have good ductility and can be deep stamped.
Home appliance industry: Used to manufacture the outer shell and internal parts of home appliances such as refrigerators, washing machines, air conditioners, etc., because they are easy to process and have low costs.
Machinery manufacturing: Carbon steel coils are widely used in the manufacture of mechanical parts, equipment housings, tool racks, etc.
Oil and gas industry: Used to manufacture pressure vessels, storage tanks, pipelines and other equipment, low carbon steel coils are often used for conveying pipelines and other load-bearing structures.
Shipbuilding: Carbon steel coils are widely used in the manufacture of hull structures and ship parts.
Transportation: Used to produce railway carriages, vehicle chassis, shelves, etc., especially in applications requiring strong load-bearing capacity, carbon steel coils perform very well.
Physical Properties
The physical properties of carbon steel coils are influenced by their chemical composition and processing methods. Key properties include
Strength
The ability to withstand stress without breaking. It is typically measured by yield strength (the stress at which permanent deformation occurs) and tensile strength (the maximum stress the material can withstand before fracturing).
Hardness
The resistance to indentation or scratching. It is often measured using the Rockwell or Brinell hardness tests.
Ductility
The ability to be deformed without fracturing. It is important for forming and bending operations.
Weldability
The ability to be joined by welding. Low-carbon steel has excellent weldability, while high-carbon steel is more challenging to weld.
Our Certificate
FAQ
As one of the leading carbon steel coil manufacturers in China, we warmly welcome you to buy high quality carbon steel coil for sale here from our factory. Good service and reasonable price are available.
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