COLD ROLLED STEEL

– Advantages:

+ Come in different shapes and sizes with a smooth and shiny surface, our products can meet the diverse demands and requirements or customers.

+ With the high-quality and impact resistance, Vina One Cold Rolled Steel have an edge of durability and reliability that make us the trusted supplier or high-grade steel for various requirements. 

– Applications:

+ Industries: shipbuilding, automobile, etc.

+ Engineering: panel manufacturing, packaging, fabrication, drums, barrels, etc.

+ Home appliances, Metal furnitures. 

Vina One not only manufactures the products as our standard commercial specifications, but also make to customer’s orders. 

DIMENSIONS & TOLERANCES
Division
Thickness (mm) Width (mm)
0.30
~ 2.00
300 ~ 1250
Tolerance Allowances of Thickness in Class A JIS G 3141
Nominal Thickness (mm)
Nominal Width (mm)

630
630< W ≦ 1000
0.25< t ≦ 0.40 ±0.04 ±0.04
0.40< t ≦ 0.60 ±0.05 ±0.05
0.60< t ≦ 0.80 ±0.06 ±0.06
0.80< t ≦ 1.00 ±0.06 ±0.06
1.00< t ≦ 1.25 ±0.07 ±0.07
1.25< t ≦ 1.60 ±0.08 ±0.09
1.60< t ≦ 2.00 ±0.10 ±0.11
Tolerance Allowances of Width (mm)
Nominal Width 
Tolerances
< 1250  -0, +7

1250
 -0, +10
CHEMICAL COMPOSITIONS & MECHANICAL PROPERTIES
Chemical Compositions (%) 
Grade  C Mn P S
SPCC ≦ 0.15 ≦ 0.60 ≦ 0.100 ≦ 0.035
Mechanical Properties
Grade  Temperature Class
Tensile Yield (N/mm2)
Tensile Strength (N/mm2)
Elongation (%) 
0.25mm≦t
< 0.3mm
0.3mm
≦t
< 0.4mm
0.4mm
≦t
< 0.6mm
0.6mm
≦t
< 1.0mm
 1.0mm ≦t
< 1.6mm
 1.6mm ≦t
< 2.5mm
2.5mm
≦t
SPCC Hard  –   –   –   –   –   –   –   –   – 
Hardness (HRB & HV)
Temper Grade
Symbol of Temper Grade
Temper 
HRB HV
Full hard 1 ≥ 80 ≥ 170

TESTING CHARACTERISTICS
Shapes
Category  Tolerances (mm)
Flatness
Wave Edge wave  Central Buckle
≦ 12 ≦ 8 ≦ 6
Bendability ≦ 4 in any 2000 length (Width≦ 630) 
≦ 2 in any 2000 length ( Width > 630)
Bending Test
Temper Grade
Symbol of Temper Grade  Bending Angle  Bend Radius
Full Hard 1  –   –