SAE AZ63A Magnesium Alloys
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SAE AZ63A Chemical Composition
SAE J465: 2018 / Magnesium casting alloys
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SAE AZ63A Physical Properties
Temperature
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SAE AZ63A Heat Treatments
- Solution heat treatment
Alloy type 1: Heated at 720-735°F (382-391°C).
Alloy type 2 (contains calcium): Heated at 720-745°F (382-396°C).
Incremental steps or a uniform heating rate shall be used to prevent eutectic melting which can irreversibly damage castings. A protective atmosphere containing sufficient sulfur dioxide, carbon dioxide, or satisfactory oxidation inhibitor shall be used when solution heat treating at or above 750°F (399°C). Recommended soaking time (for type 1 and type 2) is 10-14 hours (soaking time starts when all temperature control sensing elements are within 10°F (6°C) of the set or offset temperature). Heavy section castings, t ≥ 25.4 mm, may require longer soaking time than indicated.
Parts should be quenched after being soaked at the solution heat treating temperature. During the quench, the quenchant temperature shall not rise more than 25°F (14°C).
Aging (precipitation heat treatment)
Temper T5 - artificial aging from the as-cast (F) condition. Heated for 5 hours at 450°F (232°C) or 4 hours at 500°F (260°C).
Temper T6 - artificial aging from the solution heat treated (T4) temper. Heated for 5 hours at 450°F (232°C). Protective atmosphere is not required.
Rework solution heat treatment
Heated at 725°F (385°C). Recommended soaking time is half an hour (for type 1 and type 2).
SAE AZ63A Mechanical Properties
Temperature
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SAE AZ63A 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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- 15Cross References
- 17Composition
- 66Mechanical Properties
- 16Physical Properties
- 1Heat Treatment
- -Metallography
- -Machinability
- 9Stress-Strain
- -Formability
- 68Fatigue
- -Fracture
- -Creep
- 2Joints
- -Coatings
- -Dimensions
- -Tribology
- -Corrosion
- 29Ageing
- -Weatherability
- -Irradiation
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