ML-S-43A
S1JULY 19S1
SUPESSEDIIJG
JAN-S-43
29
April 19U
MILITARY SPECWICATION
STEELBARS FOR PROJECTILE
Thu rpeciffcdimi WM approwd .3v tb Department of Lb Armv, tti New, md
t% A+ Fc.rw for we of procurement Ierv&a of tb reqwetive DeP&tmmIti.
1.SCOPE
\
1.1 This specification covers steelin the
form of cold-drawn and strew-relieved carbon
steel bars intended for the manufacttq of
projectiles not larger” than 2 incbw in”di.
ameter, by machining in screw machines.
..
2. APPLICABLE SPECIFICATIONS,’
STANDARDS, DRAWINGS, AND
‘PthlLl-
CA’PIONS
2.1The followingspecifimtionsaridpub
lication,”of the issu”e in effect on date of in.
w“tation for bids, form a part of this specifi-
cation:
SPECIFICATIONS
FEOER4L
QQ-M-161—M@AIs; General Specifi$-
tion for Inspection of.
i!
u. s.A3hfY
,i
-1
100-2
-Standtid Specification for
Marking Shipments by Contrait&a.
NAVY DEPARTMENT
General Specifications for Im@ction of
Material, including Appendix II,
MeWS, part A, Dednitiona and Teste.
PUBLICATIONS
BUSEAU
OF SUPPLIES ANn ACCOUNTS
Navy Shipment Marking Handbook.
(Cqies of specification%,.&.andam3s,anddrawings
requiri~~: ~ntraete~n connectionwithspscific
prci%ement‘@mtio& ~oildk obtainsd,fromthe
procuringigsrify”Orasqirectedby tbecontracting
05cer.)
3. kEQ~EM13NT5
3.1 Materisl.-The raw
materiak used shall
be such se to produce steel bars to comply
with this specification.
3.2 Manufacture.
3.2.1
Unless otherwise specked (see 6.1),
the steel shall be manufactured by the bagic
open hearth or electric furnace process.
3.?..2 SutYicieht discard shall be taken from
each in~ot to remove top and bottom un-
soundness.
3.2.3 Bars shall be cold drawn from hot ‘
rolled bars
which may be annealed or normal-
i!ied when necessary to meet specified me-
chanical requirements. After cold drawing, aU
bars shall be stress-relieved at the tempera-
ture and for the time required to produce the
desired mechanical properties.
3.2.4 Bars shall be free from pipe, exces-
,1
sive perosity, excessive metallic inclusions,
and other manufacturing defects which make
the material unsuitable for the intended pur-
pose.
I
9521S2-31-[69)
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