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	PRODUCT DATA of AA5456-H112

Material

AA5456-H112

Processing and Assembly

Applies to products that may acquire some strain hardening during working at elevated temperature and for which there are mechanical property limits.

Chemical Composition

Al-5.1Mg-0.8Mn-0.12Cr

	EXPERIENCE IN PRACTICE

Development Status

Commercial Product

Cost Range

Low

Equivalent Designations

AA 5456

Space Experience

Good

	PHYSICAL PROPERTIES

Crystal Structure

Face centered cubic (fcc)

Specific Gravity

2.65

Magnetic Properties

Nonmagnetic

	ELASTIC PROPERTIES

Shear Modulus

27.1 GPa

Poisson Ratio

0.33

	MECHANICAL PROPERTIES

Ultimate Tensile Strength

283 MPa

Proof Stress (0.2%)

124 MPa

Elongation

12 %

Hardness

70 HB

	ELECTRICAL PROPERTIES

Electrical Volume Resistivity

5.9e-8 ohm.m

	THERMAL PROPERTIES

Temperature Range

66 °C(maximum)

Thermal Conductivity

117 W/m.K

Thermal Expansion Coefficient

23.9 µstrain/°C

Specific Heat

0.963 J/g.K

Melting Range

571 to 638 °C

	RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY

EMF vs SCE

-0.79 V

Bimetallic Corrosion

Can be used in a non-controlled environment: Al alloys, Cd Can be used in a clean room environment: Mg, Sn-Pb alloys (all), Sn, Pb, Zn, Be Needs specific measures Remark: ECSS-Q-ST-70C Rev.1 table 5.1 Data Quality: Design Data All others

	SPECIAL RECOMMENDATIONS

Lessons Learned

The alloy is not recommended for continuous service at temperatures above 66°C because of accelerated aging at elevated temperatures which may increase the susceptibility of the alloy to stress corrosion cracking