scope:

This specification covers alloys steel, bars and blanks under 2 inches in diameter for use in the manufacture of barrels for small arms weapons (see 6.1 and 6.3).

Bars and blanks shall be furnished in the compositions listed in table I, as specified (see 6.2).

Bars and blanks shall be furnished in the following conditions, as specified (see 6.2 and 6.3):

Bars (mill length). Hot rolled, as rolled. Hot rolled and annealed (see 6.6). Quenched and tempered. Blanks and gun barrel bar lengths. As rolled or as forged. Cold formed blanks (spheroidize annealed before forming.) Quenched and tempered.

Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Director, US Army Laboratory Command, Materials Technology Laboratory, ATTN: SLCMT-MEE, Watertown, MA 02172-0001 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.

intended Use: