This Standard specifies the requirements for the supply and inspection of steel for shell bodies and proof shot which is used in the forged, rolled or normalized, hardened and tempered, or cold drawn condition.

Both ingot and continuously cast steel are covered by the Standard. Notwithstanding this, continuously cast steel may not be used for live ammunition unless specifically agreed by the Project Manager.

A schedule of compositions and properties of the steels is contained in tables A, B and C.

Conditions which may be demanded when the steel is required for use in specialized forging plant are contained in annex A.

With the exception of units for Izod impact values (for which, in agreement with current BSI practice, imperial units are being retained), metric units are used throughout the specification and, where quoted, shall be regarded as standard.