Automotive steel

BR1200HS steel

BR1200HS steel

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

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

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.

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