Hot Rolled Steel (HR) - (SPHC、SPHD、SPHE)：JIS G3131
．SPHD: Drawing processing soft steel
．SPHE: Deep drawing processing soft steel
．Application: Frame, construction, steel, pressure vessels and tools
Hot Rolled Steel (HR/PO) - (SAPH-P/O)：JIS G3113
| Automotive structural steel SAPH310、SAPH370、SAPH400、SAPH440 | |||
Type |
Grade |
software quality characteristics |
Application |
SPHC |
JIS G3131 |
No special strength requirements of the product parts |
General molding, bending, such as wire piping, bicycle parts and other gear sets |
SPHD |
JIS G3131 |
Low yield strength, high elongation rate, anti-ear extension |
Complex formation or severe bending of steel pipes, multiple deep drawing for cup parts, motor housing, compressor housing, etc. |
SAPH |
JIS G3113 |
Mold ability is good; uniform elongation rate to about 20% of the sheets of processing, and hole expansion rate to 100% of the stringent requirements of the processing purpose. Longitudinal fold bending process can meet the stringent r = 0 ° ~ 180 ° of use requirements |
Materials belong to car parts, steel materials need to meet the complex shape forming, dimensional tolerances and surface quality requirements more stringent, common car parts have wheels, suspension systems, chassis beams and other (tensile molding) |
