Cold Rolled Steel Sheet

Your Professional Cold Rolled Steel Sheet Supplier

Our goal is to become your true partner in the field of cold rolled steel sheet in China. Gnee Steel Group is committed to becoming the world's most internationally competitive supply chain group, meeting the different needs of different customers. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

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Why Choose Us

Our services:

In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.

Our certification:

Our company has obtained SGS certification. We have also passed ISO9001 and ISO14001 environmental management system certification.

Our capacity:

We have established long-term cooperative relationships with dozens of factories to ensure the production of our products, and our annual export volume exceeds 80,000 tons.

Quality control:

All our products are made of the highest quality materials and are subject to factory inspection, cargo inspection at any time.

Advantages of Cold Rolled Steel Sheet

High durability:

The biggest advantage of this sheet is that it has superior durability. This is because of their nature of work hardening. After mechanical pressure is applied to the particular sheet, its strength is increased.

Tightened dimensions:

Compared to hot-rolled steel, cold-rolled steel is much thinner. The best steel companies in india produce cold rolled steel within the range of 0.060″ – 0.105″. These can be produced at tighter dimensions due to their work-hardening ability.

Withstand tolerances:

These are capable of tolerating pressure, compared to hot rolled sheets. Even though they are thinner, they have the ability of withstanding pressure more than hot-rolled steel. This is quite a benefit since the cold-rolled steel sheets are not as thick as the hot-rolled steel.

Increasing dimensional accuracy:

A property of hot rolled sheets is that it that the volume expands when heated at a high temperature. Again, it shrinks back to its normal size after cooling. But, while cooling down, the edges of the hr coils get shrink unevenly.

Smoothened texture:

After the rolled sheets are cooled down, they develop a rough finish. This is due to the metal crystals that form naturally on the surface of the metal. These are then rearranged to form coarse metal grains.

Easy use in applications:

The best benefit of these ready-to-use sheets is that they are highly cost-efficient. The properties of cold-rolled steel sheets save a lot of money on metal processing.

Cold Rolled Steel Sheet Specification

Product Name	Cold rolled plate/ cold rolled sheet
Grade	SS400, ASTM A36, A572,ST37,ST52, Q195, Q215, Q235,Q345, Q460, Q609,S235JR, S355JR
Standard	JIS, AISI, ASTM, DIN, TUV,BV,SUSG3101,GB/T700-2006,etc
Thickness	0.12mm-60mm or as required
Length	1000-12000mm or as required
Width	600mm-1250mm or as required

Types of Cold Rolled Steel Sheet

Full hard: Full hard cold rolled steel sheet is produced with a high level of hardness and strength. It is ideal for applications that require excellent tensile strength and resistance to deformation, such as automotive parts, appliances, and metal furniture.

Half hard: Half hard cold rolled steel sheet offers a balance between strength and formability. It is less rigid than full hard steel, making it suitable for applications that require some degree of flexibility, such as metal containers, electrical enclosures, and ductwork.

Quarter hard: Quarter hard cold rolled steel sheet is softer and more malleable compared to full hard and half hard steel. It is commonly used in applications that require deep drawing or bending, such as automotive components, home appliances, and metal furniture frames.

Skin passed: Skin passed cold rolled steel sheet undergoes an additional process called skin pass rolling. This process imparts a smooth surface finish and improves the flatness of the sheet.

High strength low alloy (hsla): High strength low alloy cold rolled steel sheet contains alloying elements that enhance its strength and mechanical properties. It is widely used in structural applications, such as bridges, buildings, and machinery, where high strength and weight reduction are critical.

Applications of Cold Rolled Steel Sheet

Automobile:

Strong, precise, and elegant, cold rolled steel sheets are fundamental in helping to shape the automobile sector. For constructing elegant body panels, strong frames, and essential structural components, their outstanding surface finish and dimensional accuracy make them perfect.

Construction:

Cold rolled steel sheets are a pillar of contemporary architecture in the construction sector as they combine endurance with aesthetic value. Perfect strength and weather resistance make them extensively employed in beams, cladding, and roofing.

Appliances:

Redefining the design and performance of home and industrial appliances, cold rolled steel sheets cabinetry, housings, and appliance interiors use them because of their perfect surface finish and remarkable dimensional stability.

Industrial equipment:

Cold rolled steel sheets are indispensable for industrial equipment as they provide dependability and accuracy under severe circumstances. Precision tools and equipment components needing great strength and close tolerances are made from these sheets.

Furniture:

By combining strength with design, cold-rolled steel sheets have fully transformed contemporary furniture construction. Their smooth surface and consistent thickness make them ideal for creating elegant, robust frames and complex patterns.

Production Process of Cold Rolled Steel Sheet

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Preparation of raw material: The first step in the production process of cold rolled steel sheet is the preparation of hot-rolled coils. The hot-rolled coils are cleaned and inspected for defects before entering the cold-rolling mill.

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Cold-rolling mill: The cold-rolling mill is the heart of the cold-rolling process. The hot-rolled coils are fed into the mill and passed through a series of rollers.

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Annealing: After the cold-rolling process, the steel sheets or coils are annealed to improve their mechanical properties and eliminate residual stresses. Annealing also improves the surface quality, making the sheets more attractive and easier to process.

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Pickling: Pickling is a process of removing surface oxide and scale from the steel sheets or coils. It involves dipping the sheets or coils in an acidic solution, followed by rinsing and drying.

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Skin pass mill: The skin pass mill is the final stage of the cold-rolling process. It is designed to improve the surface finish and dimensional accuracy of the sheets or coils.

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Inspection and packaging: After the final stage of production, the sheets or coils are inspected for defects and packaged for shipment. Quality control measures are implemented throughout the production process to ensure that the final product meets the required specifications.

Packing and Shipping of Cold Rolled Steel Sheet

Packing	Standard export packing (inside:water proof paper,outside:steel covered with strips and pallets)
Shipping	Shipped by road, sea, rail

Other Service of Cold Rolled Steel Sheet

Delivery time	7 to 15 working days
Payment terms	30%TT for deposit, 70% balance before shipment or LC at sight
Supply ablitity	10000 Ton/ per Month

FAQ

Q: What is a cold-rolled steel sheet?

A: Cold rolled steel is hot rolled steel that has undergone additional processing to improve its dimensional and mechanical properties. During the cold rolling process, cooled hot rolled steel passes through another series of rollers at room temperature.

Q: What is cold-rolled steel used?

A: Cold-rolled steel is used for applications that require precise dimensions, surface finishes, and high strength, such as automotive and aerospace parts, electronic components, and construction materials. Cold-rolled steel has a variety of applications across multiple industries.

Q: What is the maximum thickness of cold-rolled steel?

A: The maximum thickness of cold-rolled steel generally falls below 8.0 millimeters (0.31 inches), with most factories producing plates with thicknesses below 4.5mm.

Q: What is another name for cold-rolled steel?

A: Cold-formed steel (CFS) is the common term for steel products shaped by cold-working processes carried out near room temperature, such as rolling, pressing, stamping, bending, etc. Stock bars and sheets of cold-rolled steel (CRS) are commonly used in all areas of manufacturing.

Q: Which is better hot or cold-rolled steel?

A: Strength and hardness differences between Hot Rolled Steel & Cold Rolled Steel. With a lower yield strength and better workability, hot rolled steel is easily formed and extremely malleable. It is also harder than cold rolled steel because it is formed at high temperatures and cooled slowly.

Q: How to identify cold-rolled steel?

A: In terms of physical characteristics, cold rolled steels are typically harder and stronger than standard hot rolled steels. As the metal is shaped at the lower temperatures, the steel's hardness, resistance against tension breaking, and resistance against deformation are all increased due to work hardening.

Q: Is cold-rolled steel cheaper?

A: However, once the treated steel is ready, cold rolled steel goes through a few extra steps. The mill lets the metal cool off until it's room temperature, then draws it through rollers or puts it through annealing treatment. This additional labor makes it more expensive than hot rolled steel.

Gnee Steel (Tianjin) Co., Ltd. is one of the most professional cold rolled steel sheet manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale cold rolled steel sheet at competitive price from our factory. Contact us for customized service. Cold Rolled Carbon Steel Sheet