Hot stamped component

Abstract

This hot stamped component has a predetermined chemical composition, in a position at ¼ of a sheet thickness from a surface, in a texture of prior austenite, a maximum value of pole densities of an orientation group expressed by Euler angles of Φ=60° to 90°, φ1=60° to 90°, and φ2=45° is 3.0 or more, an average value of block sizes of martensite, tempered martensite and bainite is 1.20 μm or less.

1 . A hot stamped component comprising, as a chemical composition, by mass %:
 C: 0.40% to 0.70%;   Si: 0.010% to 3.000%;   Mn: 0.10% or more and less than 0.60%;   P: 0.100% or less;   S: 0.0100% or less;   N: 0.0100% or less;   O: 0.0200% or less;   Al: 0.0010% to 0.5000%;   Nb: 0.0010% to 0.1000%;   Ti: 0.010% to 0.100%;   Cr: 0.010% to 1.000%;   Mo: 0.050% to 1.000%;   B: 0.0005% to 0.0100%;   Co: 0% to 3.00%;   Ni: 0% to 3.00%;   Cu: 0% to 3.00%;   V: 0% to 3.00%;   W: 0% to 3.00%;   Ca: 0% to 0.1000%;   Mg: 0% to 1.0000%;   REM: 0% to 1.0000%;   Sb: 0% to 1.000%;   Sn: 0% to 1.000%;   Zr: 0% to 1.000%;   As: 0% to 0.100%; and   a remainder: Fe and impurities,   in a position at ¼ of a sheet thickness from a surface,   in a texture of prior austenite, a maximum value of pole densities of an orientation group expressed by Euler angles of Φ=60° to 90°, φ1=60° to 90°, and φ2=450 is 3.0 or more,   an average value of block sizes of martensite, tempered martensite and bainite is 1.20 m or less.   
     
     
         2 . The hot stamped component according to  claim 1  comprising, as the chemical composition, by mass %, one or more of:
 Co: 0.01% to 3.00%; 
 Ni: 0.01% to 3.00%; 
 Cu: 0.01% to 3.00%; 
 V: 0.01% to 3.00%; 
 W: 0.01% to 3.00%; 
 Ca: 0.0001% to 0.1000%; 
 Mg: 0.0001% to 1.0000%; 
 REM: 0.0001% to 1.0000%; 
 Sb: 0.001% to 1.000%; 
 Sn: 0.001% to 1.000%; 
 Zr: 0.001% to 1.000%; and 
 As: 0.001% to 0.100%.