EN10130 DC01/JIS G3141 SPCC SB/SD CR Steel Coils for ERW Round Tubes

EN10130 DC01/JIS G3141 SPCC SB/SD CR Steel Coils for ERW Round Tubes






Brief Introduction


CR Steel Coils is steel that has been worked below its recrystallization temperature by passing it between a pair of rollers. Recrystallization temperature is the temperature at which grains in the lattice structure of the metal have been rearranged, leaving it free of strain and deformations. CR Steel Coils is pre-treated before being Cold Rolled with a process known as pickling, which uses strong acids to remove scale and other impurities. CR Steel Coils is then passed through rollers to reduce its thickness. Most cold rolling takes place in multiple passes and as the size of the CR Steel Coils is further reduced, its strength and hardness both increase, but its ductility decreases. After cold rolling, heating the metal up in a process known as annealing can restore some of its ductility. The final CR Steel Coils may be manufactured in the form of sheets, strips, bars, or other forms.





Production Flow Chart









Specification


1. Thickness: 0.4-2.0mm


2. Width: 900-1250mm


3. Inner Diameter: 508 & 610mm


4. Weight of Steel Coil: 3-15MT


5. Heat Treatment: Annealed + Smoothed


6. Margin Status: EC & EM


7. Surface Quality: FC & FD


8. Surface Treatment: Oiling


9. Surface Status: Bright






Chemical Components

Grade	Chemical Components
	C	Mn	P	S	Alt
DC01	≤0.12	≤0.50	≤0.035	≤0.025	≥0.020
DC03	≤0.10	≤0.45	≤0.030	≤0.025	≥0.020
DC04	≤0.08	≤0.40	≤0.025	≤0.020	≥0.020

Mechanical Properties


1. Yield Strength: ≤320MPa


2. Tensile Strength: ≤370MPa


3. Elongation (L=50mm, b=25mm) When:


(1) Nominal Thickness <0.25mm: 30%


(2) Nominal Thickness 0.25mm-<0.40: 32%


(3) Nominal Thickness 0.40-<0.60mm: 34%


(4) Nominal Thickness 0.60-<1.0mm: 36%


(5) Nominal Thickness 1.0-<1.6mm: 37%


(6) Nominal Thickness >1.6mm: 38%






Vertical Packing









Horizontal Packing









Application


1. Base metal for coated and dipped products.


2. Home appliance and home furniture


3. Bicycle


4. Building industry


5. Battery Shell


6. Automobile fitting, hardware


7. Industrial products including motors, generators






Certificates









Quality Control & Test Instruments









Production Line









Factory Stockhouse









Factory Overlook









Superiority


1. High precision of dimensional tolerance


2. Excellent mechanical property such as the yield strength and tensile strength, etc.


3. Being highly resistant to denting


4. Exhibits useful magnetic properties


5. High quality surface finish and get well prepared for the surface coating


6. Available in a variety of sizes and shapes with characteristics useful in a wide range of applications

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Product Categories : Cold Rolled Steel Coil