Carbon Steel Coil

Your Professional Carbon Steel Coil Supplier

Tianjin Kun Yu Technology Co., Ltd. is one of the leading steel exporters in China. The company specializes in exporting a wide range of steel products, including steel pipes, steel plates, carbon steel, galvanized steel, stainless steel, aluminum steel, and steel profiles. These products are primarily utilized in various sectors of the national economy, such as the chemical industry, machinery, construction, public utilities, shipping, oil, and others.

Customized Services

With over a decade of experience in the manufacturing and R&D of steel products, we offer comprehensive customization services for a variety of materials to meet specific customer requirements.

High-Quality Products

Our factory employs state-of-the-art production processes and advanced technology to ensure the superior quality of our products.

High Productivity

Equipped with cutting-edge production facilities and a highly skilled technical team, we guarantee efficient production to meet customer demands promptly.

Excellent After-Sales Service

We provide exceptional after-sales service, addressing customer complaints and resolving issues effectively to ensure customer satisfaction.

Parameter

Thickness	Plate:0.35-200mm strip:1.2-25mm
Length	1.2m-12m or according to customer's special request
Width	610,760,840,900,914,1000,1200,1250mm
Tolerance	Thickness: +/-0.02mm, Width:+/-2mm
Material grade	Q195 Q215 Q235 Q345
	SS490 SM400 SM490 SPHC SPHD SPHE SPHF
	SEA1002 SEA1006 SEA1008 SEA1010
	S25C S35C S45C
	65Mn
	SPHT1 SPHT2 SPH3 SPH4
	Others as your requirement
Surface	Iron gray (low carbon plate), brown (special alloy plate, the high carbon plate), partial ochre (weather resistance), with temperature oxidation pattern, than manufacture rough surface
Standard	ASTM,DIN,JIS,BS,GB/T
Certificate	ISO,CE, SGS,BV,BIS
Payment terms	30% T/T deposit in advance, 70% T/T balance within 5 days after B/L copy, 100% Irrevocable L/C at sight, 100% Irrevocable L/C after receive B/L 30-120 days, O/A
Delivery times	Delivered within 30 days after the receipt of deposit

Types of Carbon Steel Coil

The carbon steel coils produced by our company mainly include the following types:

Hot Rolled Black Carbon Steel Coil

Hot rolled black carbon steel coil is a form of carbon steel produced by rolling heated steel billets into long, hot bands at high temperatures (above recrystallization temperature, typically over 1,700°F) and then coiling the steel while it's still hot. It's a common type of steel used in various industries due to its high strength, good toughness, and weldability.

Cold Rolled Carbon Steel Coil

A Cold Rolled Carbon Steel Coil is a flat-rolled steel product that undergoes a cold rolling process at room temperature. This process enhances the steel's surface finish, dimensional accuracy, and mechanical properties. Unlike hot-rolled steel, cold-rolled carbon steel coils are known for their smooth surfaces, tighter tolerances, and increased strength, making them ideal for applications where precision and aesthetics are critical.

Properties of Carbon Steel Coil

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.

Density:

Approximately 7.85 g/cm³

Applications of Carbon Steel Coil

Construction
Structural Components: They are indispensable in the construction industry for making beams, columns, and other structural components. Such elements are critical for safety and integrity in construction, building, or any infrastructure.
Building Frameworks: Steel coils are pressed into frames in building structures to give extra support and strength. They are used to make bridges, tunnels, and other more extensive constructions.

Automotive
Car Bodies and Frames: The automotive industry uses carbon steel coils to produce vehicle bodies and frames. Thanks to the strength and formability, they apply to the fact that, due to their strength and formability, these materials can be used in the manufacture of lightweight and, at the same time, robust vehicles.
Engine Parts: The high-strength, low-alloy medium, and high-carbon coils are used in making general motors, including gears, crankshafts, and axles.

Manufacturing
Machinery Parts: Carbon Steel Coils are extensively used in the manufacturing industry because they create parts and types of machinery. Their strength is significant to the overall durability of theory in heavy-duty operations.
Tools and Equipment: Coils in low and medium-carbon steel form the base of creation for daily tools and equipment, from hand tools to industrial machinery. They become the base for creating other products that rely on their efficient performance.

Energy
Pipelines: They are very high in strength and resistively used in the energy industry to manufacture pipelines for oil, gas, and other fluids.
Oil Rigs: Steel coils are further utilized to erect oil rigs and other offshore structures. The environment for these structures requires materials that work under very adverse situations to support hefty loads.

Aerospace
Structural Components: In the aerospace sector, carbon coils form the structural elements for an aircraft and spacecraft: wings, fuselages, and other essential items. Its strength lies in the premise of safety and reliability for these critical parts.
Hardware and Fittings: All these, as well as various bolts, nuts, and other fasteners used in the large-scale aviation industry, along with the need for lightweight, are made of the same material: carbon steel coils.

Precautions for the Use of Carbon Steel Coils

01/

Storage and maintenance
Steel coils should be stored in a dry and ventilated warehouse to prevent moisture and rust. Keep away from acid, alkali and other chemical corrosive substances, avoid direct sunlight. Regularly check the storage environment of steel coils to ensure compliance with requirements.

02/

Handling operation
Special handling equipment or tools should be used when handling steel coils. Throwing, collision or rolling are prohibited. Operators should wear safety equipment to avoid accidental injury.

03/

Cutting use
When cutting steel coils, professional cutting tools should be used. Operators should wear protective equipment to prevent splashing sparks or metal fragments from hurting personnel.

04/

Welding processing
When performing welding and other processing operations, pay attention to safety protection, use appropriate welding equipment and materials, keep the workplace clean and tidy, and prevent fires.

Ordering Process

First, we discuss order details, production details by email or TM. Then we issue you an PI for your confirmation. You will be requested to do prepaid full payment or deposit before we go into production. After we get the deposit, we start to process the order. We usually need 10-1 5days if we don't have the items in stock. Before production has been finished, we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for you.

Packaging and Shipping

Packaging

Waterproof paper, and steel strip packed. Standard Export Seaworthy Package. Suit for all kinds of transport, or as required

Shipping

Transported by DHL, UPS, EMS, Fedex, SF, by Air, by Sea.

According to customer requirements

Our Factory

Tianjin Kun Yu Technology Co, Ltd. is located in Beichen District, Tianjin, China, is a production and trading integrated enterprise, focusing on the field of steel materials. Our steel plant covers an area of 150,000 square meters, with spacious production workshops and advanced storage facilities, the plant covers an area of 128 employees, and builds a well-structured, professional and complementary team structure.

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Our Certificate

FAQ

Q: What is the main component of carbon steel coils?

A: The main component of carbon steel coils is iron, with carbon as the main alloying element. Additionally, it may contain small amounts of other elements such as manganese, silicon, sulfur, and phosphorus.

Q: What is the typical tensile strength range of carbon steel coils?

A: The tensile strength of carbon steel coils can vary widely depending on the specific grade and processing. For example, low - carbon steel coils may have a tensile strength in the range of 300 - 500 MPa, while high - carbon or alloyed carbon steel coils can have tensile strengths exceeding 1000 MPa.

Q: What are the main steps in manufacturing carbon steel coils?

A: The main steps include melting the raw materials (iron ore, coke, etc.) in a blast furnace to produce pig iron, then refining the pig iron in a steel - making furnace to adjust the composition and remove impurities. After that, the molten steel is cast into slabs, which are then hot - rolled and coiled into carbon steel coils. Cold - rolling may also be performed for further processing to improve the surface quality and dimensional accuracy.

Q: How should carbon steel coils be stored to prevent corrosion?

A: Carbon steel coils should be stored in a dry, well - ventilated environment to prevent moisture from coming into contact with the surface of the coils. They can be stored indoors or under covered areas. If stored outdoors, they should be placed on pallets or racks to keep them off the ground and protected from water - splashing.

Q: Can carbon steel coils be stacked? If so, what are the considerations?

A: Carbon steel coils can be stacked, but certain considerations must be taken into account. The coils should be stacked in a stable manner to prevent them from toppling over. It is advisable to use spacers or pallets between the coils to allow for air circulation and to prevent surface damage. The weight capacity of the storage area and the lifting equipment should also be considered to ensure that they can support the stacked coils.

As one of the leading carbon steel coil manufacturers and suppliers in China, we warmly welcome you to wholesale cheap carbon steel coil from our factory. All customized steel products are with high quality and competitive price. For free sample, contact us now. carbon steel coil, mild steel hot rolled coil