High Manganese Steel Strips with Excellent Coatability and Superior Surface Property, Coated Steel Strips Using Steel Strips and Method for Manufacturing the Steel Strips

摘要

A high-ductility, high-strength and high Mn steel strip used for steel strips of automobiles requiring superior formability and high strength, a plated steel strip produced by using the same, and a manufacturing method thereof are disclosed. The high Mn steel strip comprises, by weight %, 0.2˜1.5% of C, 10˜25% of Mn, 0.01˜3.0% of Al, 0.005˜2.0% of Si, 0.03% or less of P, 0.03% or less of S, 0.040% or less of N, and the balance of Fe and other unavoidable impurities. The high-ductility, high-strength and high Mn steel strip, and the plated steel strip produced by using the same have superior surface properties and plating characteristics.

主权项

1. A high Mn steel strip having superior surface properties and plating characteristics, comprising, by weight %:
0.2˜1.5% of C; 10˜25% of Mn; 0.01˜3.0% of Al; 0.005˜2.0% of Si; 0.03% or less of P; 0.03% or less of S; 0.040% or less of N; and the balance of Fe and other unavoidable impurities.