This International Standard specifies the characteristics of thick-walled seamless hollow steel bars intended for the manufacture of tubular and annular machined parts.
DS/ISO 2938:1975 history
2005DS/EN 10294-1:2005 Hollow bars for machining - Technical delivery conditions - Part 1: Non alloy and alloy steels
DS/ISO 2938:1975 Hollow steel bars for machining was changed to DS/EN 10294-1:2005 Hollow bars for machining - Technical delivery conditions - Part 1: Non alloy and alloy steels.