High strength steel plate with high manganese having...

Details High strength steel plate with high manganese having... High strength steel plate with high manganese having...

2007-12-20

2011-11-08

Wyszomierski, George (Department: 1733)

Alloys or metallic compositions

Ferrous

Eight percent or more manganese containing

C148S329000

Reexamination Certificate

active

08052924

ABSTRACT:
There is provided a high strength steel plate with high manganese having excellent burring workability, which is used for structural members, bumper reinforcing materials and impact absorbing materials of automobiles, etc. The high strength steel plate includes, by weight: C: 0.2 to 1.0%, Mn: 10 to 25%, Al: 0.3 to 3.0%, S: 0.05% or less, P: 0.05% or less, and the balance of Fe and inevitable impurities, wherein the chemical elements satisfactorily have a grain size of 18 μm or more. The high strength steel plate can be useful to facilitate formation of automobile parts since it has excellent physical properties such as elongation and hole expansibility as well as strength.

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