BS EN 10027-1:2005

This European Standard, a part of the BS EN 10027 series, specifies rules for designating steels by means of symbolic letters and numbers to express application and principal characteristics, e.g. mechanical, physical, chemical, so as to provide an abbreviated identification of steels.

This European Standard applies to steels specified in European Standards (EN), Technical Specifications (TS), Technical Reports (TR) and CEN member's national standards.

These rules may be applied to non-standardized steels.

A system of numerical designation of steels known as steel numbers is specified in BS EN 10027-2.