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7075-T73 Hand forging: MIL-HDBK-5J Design Allowables

Material classAluminum
Alloy / temper / form7075 / T73 / Hand forging
SpecificationsAMS-A-22771 and AMS-QQ-A-367
HandbookMIL-HDBK-5J, 31 January 2003, section 3.7.6.0, Table 3.7.6.0(f) (pdf page 384 of the chapter file)
Dimension bands5
Density2796 kg/m³

Design Mechanical and Physical Properties (room temperature)

Converted from the handbook table (ksi, Msi, lb/in³) and rounded to 4 significant figures; dimension bands in inches with mm in parentheses. Bases: A and B are statistical minimums (99 % and 90 % probability at 95 % confidence), S the specification minimum. Grain directions: L longitudinal, LT long transverse, ST short transverse.

Dimension band0–2 in (0–50.8 mm)2.001–3.000 in (50.83–76.2 mm)3.001–4.000 in (76.23–101.6 mm)4.001–5.000 in (101.6–127 mm)5.001–6.000 in (127–152.4 mm)
SpecificationAMS-A-22771 and AMS-QQ-A-367AMS-A-22771 and AMS-QQ-A-367AMS-A-22771 and AMS-QQ-A-367AMS-A-22771 and AMS-QQ-A-367AMS-A-22771 and AMS-QQ-A-367
BasisSSSSS
Ftu, MPaL455.1455.1441.3427.5420.6
LT441.3441.3434.4420.6406.8
ST…420.6413.7399.9393
Fty, MPaL386.1386.1379.2365.4351.6
LT372.3372.3365.4351.6344.7
ST…358.5351.6344.7337.8
Fcy, MPaL386.1386.1………
LT358.5358.5………
ST……………
e, %L77776
LT43333
ST…2222
E, GPa70.3370.3370.3370.3370.33
Ec, GPa71.7171.7171.7171.7171.71
G, GPa26.226.226.226.226.2
ν0.330.330.330.330.33
ρ, kg/m³27962796279627962796

Effect of Temperature

Percent of the room-temperature value against temperature, digitized from the handbook figures (the shortest exposure of each figure, every 10 °F). Strength curves give the allowable at temperature; "after exposure" curves give the room-temperature property after a soak at that temperature.

Moduli at temperature

Other 7075 Tables

Source and Use

U.S. Department of Defense (2003). Metallic Materials and Elements for Aerospace Vehicle Structures. MIL-HDBK-5J, 31 January 2003 (public domain). The values are the handbook's design allowables as extracted from the chapter tables; check the printed table before use in a certified analysis, and note that MIL-HDBK-5J was superseded by MMPDS, whose later editions may differ. No warranty is given.