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416 was the first free machining stainless steel. It is a heat treatable chromium steel with excellent machinability and non-galling characteristics. The alloy is magnetic in all conditions.
Applications
A wide variety of screw machine parts including nuts, bolts, screws, gears and pinions, valve trim, shafts and axles.
Machinability
Speeds and feed comparable with those of some of the free machining carbon steels. Good chip breakage. Material heat treated at 200 F and cold drawn will give best results.
Welding
Welding of any type is not recommended, as the high sulfur content creates porosity.
Hot Working
All hot work procedures should commence following uniform heating to 2100-2250 F (1149-1232 C). Hot work below 1700 F (927 C) may result in cracking.
Cold Working
This alloy will accept only minor cold working. Severe deformation will result in cracking.
Annealing
1200-1400 F (650-760 C), air cool. For maximum softness, 1500-1650 F (816-900 C), furnace cool.
Tempering
Temper to achieve properties desired. Avoid tempering in the range of 750-1050 F (399-566 C) to avoid a decrease in impact strength and corrosion resistance.
Hardening
Soak at 1700-1850 F (927-1010 C) oil quench.
Physical Data
Density (lb / cu. in.)
0.28
Specific Gravity
7.7
Specific Heat (Btu/lb/Deg F - [32-212 Deg F])
0.11
Electrical Resistivity (microhm-cm (at 68 Deg F))
343
Modulus of Elasticity Tension
29
Mechanical Data
MSO currently has no data available for this grade.
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This publication may include technical inaccuracies or typographical errors. Changes may be periodically made to the information herein.
