PD 970-2001 Wrought steels for mechanical and allied engineering purposes. Requirements for carbon, carbon manganese and alloy hot worked or cold finished steels
2018BS EN ISO 683-1:2018 Heat-treatable steels, alloy steels and free-cutting steels. Non-alloy steels for quenching and tempering
2006BS EN 10083-1:2006 Steels for quenching and tempering - General technical delivery conditions
1996BS 970-1:1996 Specification for wrought steels for mechanical and allied engineering purposes - General inspection and testing procedures and specific requirements for carbon, carbon manganese, alloy and stainless steels
1991BS EN 10083-1:1991 Quenched and tempered steels - Technical delivery conditions for special steels