MIL D6AC Structural and constructional steels
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This material has 37 properties — only a subset is shown here.
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MIL D6AC Chemical Composition
MIL-S-8949: 1965 / Steel Bars, Plates, Sheets, Billets, and Reforging Stock Type D6AC
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MIL D6AC Physical Properties
Temperature
This material has 37 properties — only a subset is shown here.
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MIL D6AC Heat Treatments
- (a) Austenitize at 1.600°F to 1.650°F for 1 hour. (b) Quench in circulating molten salt at 400°F to 425°F for 15 minutes. (c) Air cool to room temperature. (d) Temper at 400°F 10°F for 1 hour. (e) Air cool to room temperature. (f) Double temper at 1.000°F to 1.040°F. (g) Air cool to room temperature.
- Normalizing temperature range 1700-1750°F, air quenched; Annealing temperature range 1525-1575°F; Furnace cool to 1000°F or below; (Recommended subcritical anneal temperature is 1250°F); Austenitizing temperature range 1675-1725°F; Medium for quenching: oil.
MIL D6AC Mechanical Properties
Temperature
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MIL D6AC International Equivalent Materials
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Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.
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- 3Cross References
- 10Composition
- 16Mechanical Properties
- 3Physical Properties
- 2Heat Treatment
- -Metallography
- -Machinability
- -Stress-Strain
- -Formability
- -Fatigue
- -Fracture
- -Creep
- -Joints
- -Coatings
- 1Dimensions
- -Tribology
- -Corrosion
- -Ageing
- -Weatherability
- -Irradiation
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