Internal Standard
SAE52100
EN31M
EN31
Equivalent Grades
BS
534A99/535A99
534A99/535A99
534A99/535A99
 
DIN
100Cr6
100Cr6
100Cr6
 
IS
103Cr1
103Cr1
103Cr1
 
EN
EN31
EN31M
EN31
 
SAE/AISI
SAE52100
SAE52100
SAE52100
 
JIS
SUJ 2
SUJ 2
SUJ 2