drum cold rolled steel sheets thicknessflatness rollingdirectioncrosswise total 4%max. 3mm superior...
TRANSCRIPT
![Page 1: Drum cold rolled steel sheets ThicknessFlatness RollingDirectionCrosswise Total 4%max. 3mm Superior uniform hardness and tensile strength Excellent Paintability](https://reader035.vdocument.in/reader035/viewer/2022062511/551a765b550346b52d8b519b/html5/thumbnails/1.jpg)
![Page 2: Drum cold rolled steel sheets ThicknessFlatness RollingDirectionCrosswise Total 4%max. 3mm Superior uniform hardness and tensile strength Excellent Paintability](https://reader035.vdocument.in/reader035/viewer/2022062511/551a765b550346b52d8b519b/html5/thumbnails/2.jpg)
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
![Page 3: Drum cold rolled steel sheets ThicknessFlatness RollingDirectionCrosswise Total 4%max. 3mm Superior uniform hardness and tensile strength Excellent Paintability](https://reader035.vdocument.in/reader035/viewer/2022062511/551a765b550346b52d8b519b/html5/thumbnails/3.jpg)
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
![Page 4: Drum cold rolled steel sheets ThicknessFlatness RollingDirectionCrosswise Total 4%max. 3mm Superior uniform hardness and tensile strength Excellent Paintability](https://reader035.vdocument.in/reader035/viewer/2022062511/551a765b550346b52d8b519b/html5/thumbnails/4.jpg)
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