Drum cold rolled steel sheets

Thickness Flatness

Rolling Direction Crosswise

Total 4% max. 3mm

• Superior uniform hardness and tensile strength

• Excellent Paintability : very clean and optimal

surface finish [Ra : 0.7∼1.8 ㎛ ]

• Excellent flatness and thickness tolerance

Characteristics

Drum cold rolled steel sheets

Mechanical Properties

Hardness(HrB)

EL min.(%)

T.S(kg/mm2)

Hardness(HrB)

EL min.(%)

T.S(kg/mm2)

28and over

Standard Specification

36 37∼and over

65and under

37and over

37and over

40 55∼(aiming45 50)∼

45 60∼(aiming50 55)∼

28and over

28and over

Dongbu

Top&Bottom

Body

Class

※ 1.2mm thickness basis

Drum cold rolled steel sheets

Oiling Conditions

Oil Type Oil Amount(both side)

DOS Type 40 140mg/m∼ 2

Anti-Rust Type 0.8 4g/m∼ 2