MIL-DTL-13931J
DRAWING CALLOUT
SUGGESTED STEELS*
.23C Max. AISI Plain Carbon (10XX) or
SAE/AISI 1015 thru 1020 or
Alloy (4XXX or 8XXX) Steel
4118, 4620, 4320, 4422, 8617, 8620, E8620
.34C Max. AISI Carbon) (10XX) or
SAE/AISI 1025 thru 1033 or 4130, 4330,
Alloy (4XXX or 8XXX) Steel
4626, 4427, 8627, E8630
.13-.34C AISI Carbon (10XX) or
SAE/AISI 1015 thru 1033 or 4023, 4118,
Alloy (4XXX or 8XXX) Steel
4130, 4320, 4330, E4330, 4626, 4427,
8627, E8630
.27-.46C AISI Alloy (4XXX or 8XXX) Steel
SAE/AISI 4130, 4140, 4330, 4340, E4330
E4340, 4427, 8627, E630
.38-.46C AISI Alloy (4XXX) Steel
SAE/AISI 4140, 4145, 4340, E4340
* Suggested steels and their chemical composition limits can be found in ASM International Metals
Handbook, Carbon and Low-Alloy Steels. Specifications for these steels, if desired, can also be found in
this handbook. ASTM or AMS specifications can be used for any of the suggested SAE/AISI steels.
6.6 Contract data requirements. Monthly reports of the results of final examination and performance
testing will be as specified for delivery on DD Form 1423 in the contract.
6.7 Metric units. When metric units are required, units for degree Fahrenheit, pounds per square inch,
square inch and inch may be converted to the metric equivalent (soft conversion) by multiplying them by
the following conversion factors:
English
Conversion factor
Equals
Metric SI Unit
degree Fahrenheit
(F-32)x5/9
=
degree Celsius (C)
pounds per square
6.894
=
Pascal (Pa)
inch
(Cm)2
square inch
6.452
=
inch
2.54
=
Centimeter (cm)
27
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