DC03 Cold Rolled Steel Coil

Cold rolled steel coil is produced through a series of processes. First, hot - rolled steel coils are used as the starting material. These hot - rolled coils are then passed through a series of cold rolling mills, where the steel is rolled at room temperature. This cold rolling process reduces the thickness of the steel coil and improves its surface finish and mechanical properties. After cold rolling, the coil may undergo additional processes such as annealing, tempering, and coating to further enhance its performance and corrosion resistance.

Continuous annealing and batch annealing

Continuous Annealing: In continuous annealing, the steel coils are continuously fed through a long annealing furnace. The process is highly automated and operates at a relatively high speed. The coils are heated, held at a specific temperature for a certain period, and then cooled down in a continuous manner. This allows for a more uniform heat treatment and better control of the annealing parameters.
Batch Annealing: Batch annealing, on the other hand, involves loading a batch of steel coils into a sealed annealing furnace. The furnace is then heated to the required annealing temperature, and the coils are annealed in a static state. After the annealing process is complete, the furnace is cooled down, and the coils are removed. This process is more time - consuming and has a lower production efficiency compared to continuous annealing.

 Properties
High Strength: Cold rolled steel coil has excellent strength and hardness due to the cold working process. It can withstand high loads and is suitable for applications requiring strong and durable materials.
 
Good Surface Quality: The cold rolling process gives the steel coil a smooth and shiny surface, with low roughness and high dimensional accuracy. This makes it ideal for applications where appearance and tight tolerances are important, such as in the automotive and electronics industries.
 
Good Formability: Cold rolled steel coil has good formability, which means it can be easily formed into various shapes and profiles through processes such as bending, stamping, and drawing. This allows manufacturers to produce complex - shaped components with high precision.
 
Uniform Mechanical Properties: The cold rolling process ensures that the steel coil has uniform mechanical properties throughout its length and width. This makes it easier to predict and control the behavior of the material during processing and use.

Standard	JIS G3141,DIN1623,EN10130
Material	SPCC, SPCD SPCE,Q195,DC01,DC02,DC03,DC04,ST12
Thickness	0.10-3 mm
Width	20-1500 mm,Normal width is 914/1000/1219/1250/1500 mm
Finish	General, bright, dull and mirror finish, oiled or non-oiled
Length	Regular Or As per the client's request
Weight Calculation	Weight(kg)=Thickness(mm)*Width(m)*Length(m)*Density(7.85g/cm3)
Packaging	Export standard packing or according to customers' requirement.
Certificate	ISO9001:2008,SGS
Shipment	Within 7-15 workdays according to the order quantity

Available Standards And Grades
GB/T5213-2008	din1623	EN 10130-2006	JIS G3141-2005	ISO 3574-1999	ASTM A1008M-07
DC01	ST12	DC01	SPCC	CR1	CS Type C
DC03	ST13	DC03	SPCD	CR2	CS Type A,B
DC04	ST14,ST15	DC04	SPCE	CR3	DS Type A,B
DC05		DC05	SPCF	CR4	DDS
DC06	ST16	DC06	SPCG	CR5	EDDS
DC07		DC07	-	-	-

Chemical Composition
Name	Chemical Composition
	C max	Mn max	P max	S max	Alts min	Ti max
DC01	0.1	0.5	0.035	0.025	0.020
DC03	0.08	0.45	0.030	0.025	0.020
DC04	0.08	0.40	0.025	0.020	0.020
DC05	0.008	0.30	0.020	0.020	0.015	0.2
DC06	0.008	0.30	0.020	0.020	0.015	0.2
Mechanical
Name	Yield Strength	Tensile Strength	Elongation After Fracture
			Nominal Thickness
			0.7	0.7-1.0	1.0-1.6	1.6
DC01	130-260	270	28	30	32	34
DC03	120-240	270	32	34	35	36
DC04	120-210	270	36	38	39	40
DC05	110-190	260	36	38	39	40
DC06	100-180	250	39	40	41	42