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HSS-Automotive BR1200HS steel Chemical Composition
Grade |
C |
Si |
Mn |
P |
B |
BR1200HS |
0.16~0.20 |
≤0.40 |
1.0~1.5 |
≤0.015 |
≤0.0035 |
Remark : Cr,Ti,Nb can be added on a demand
HSS-Automotive BR1200HS steel Mechanical Properties
Grade |
Thickness (mm) |
Yield strength (MPa) |
Tensile strength (MPa) |
Elongation A50 (%) |
BR1200HS |
|
≥280 |
≤700 |
≥18 |
1200 grade (Heat-treated) |
900~1200 |
≥1200 |
≥8 |
Remark : The properties after hot stamping has a close relationship with process. Here only for reference.
Hot stamping is the process by deforming the heated steel in a mould to make parts, which take the advantage of a specific feature of metals that the ductility of metals increases and the yield strength decreases rapidly under a high temperature. The steel sheet is heated to the austenite temperature for hot stamping, and then rapidly cooled in the mould. By such a process, parts with tensile strength above 1400MPa can be manufactured.
HSS-Automotive BR1200HS steel preparation before welding : The mess on the welding area should be cleared to keep it clean and dry .
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