Hot-rolled steel sheets
780/980MPa grade Hot-rolled High Strength Steel Sheets for Chassis Parts
Features
- Excellent stretch-flange formability is achieved by a fine homogenous microstructure.
- Superior phosphatability and corrosion resistance after painting enable application to chassis parts.
Examples of Product Characteristics
Mechanical properties
Developed steels present excellent stretch-flange formability (hole expanding ratio) suitable for forming steel to suspension parts.
Corrosion resistance after painting (SST 840 cycles)
Phosphatability
Developed steel that demonstrates the same level of superior phosphatability and corrosion resistance after painting.
Examples of Applicable Automotive Parts
Developed steels that demonstrate excellent stretch-flange formability and expand applicable parts of high strength steel.
Since suspension parts require severe stretch-flange formability, forming with the conventional 780MPa grade steel sheet was difficult.
These steel sheets demonstrate excellent stretch-flange formability and enable application to parts with complex shape.
In addition, the steel sheets have superior properties such as phosphatability and corrosion resistance for chassis parts.