This Korean industrial Standard specifies the methods of measuring the case depth for steel hardened (hereafter referred to as "case depth") by flame or induction hardening process.
KS D 0027-1991 history
2022KS D 0027-2022 Methods of measuring case depth for steel hardened by flame or induction hardening process
0000 KS D 0027-2002(2017)
2002KS D 0027-2002 Methods of measuring case depth for steel hardened by flame or induction hardening process
1991KS D 0027-1991 Methods of measuring case depth for steel hardened by flame or induction hardening process
1982KS D 0027-1982 Methods of measuring case depth for steel hardened by flame or induction hardening process