Cold Rolled Steel

* Specifications
JIS G 3141 SPCC, SPCD, SPCE
JIS G 3311 (Carbon, Alloy, Tool Steel)
ASTM A 109, ASTM A 366, ASTM A 619, ASTM A 620,
BS 1449/1, BSEN 10130-91, BSEN 10131-92
DIN 1624-87, DIN 1623/2-86
ISO 3474-86 (CR 1/2/3/4), ISO 5954-84(CRH 50/60/70)
Australia/N.Z. AS1595 NZCC NZCE, CA-2SE/CA55NE

* Quality of JIS G 3141
- commercial quality is used for simple bending, forming or drawing, and has a wide range
  of uses for automotive, home appliances, building and civil works and base metals for
  various kinds of prepainted steel products.
- drawing quality is used for better than the commercial quality, it's high formability is used
  for automotive panels, audio-visual equipment and other heating apparatuses.
- deep drawing quality is used for the parts of complicated and severe forming products,
  mainly for the automotive front panels and rear fenders.
Symbol of the Quality Chemical Composition (% max.)
C Mn P S
SPCC Commercial Quality 0.12 0.50 0.040 0.045
SPCD Drawing Quality 0.10 0.45 0.035 0.035
SPCE Deep Drawing Quality 0.08 0.40 0.030 0.030


* Dimensions
Thickness(mm) Width(mm) Length(mm) Coil I.D.(mm) Coil Weight
0.15 - 3.00 30 - 1,830 12,500 x C 420 - 610 2 - 20MT


* Temper Grade
for more,
Temper Grade Symbol Hardness(HRB) Hardness (Hv)
As Annealed A    
Standard Temper S    
1/8 Hard 8 50 - 71  95 - 130
1/4 Hard 4 65 - 80 115 - 150
1/2 Hard 2 74 - 89 135 - 185
Full Hard 1 85 min. 170 min


* Surface Finish
D (Dull Finish) - matt finish produced with a roll roughened its surface
           mechanically or chemically
B (Bright Finish) - smooth finish produced with a roll finish its surface
          smoothly
* Standard Packing
Special care is given to prevent abrasion, rust and scratch during transportation and
shipment, the procedures are illustrated as follows.
Unit weight is usually 2-5mt for sheet, 4-20mt for coils upon to the request.
for more
hanmi-resurces-cold-rolled-steel


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