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2024-T42 Bar and rod; rolled, drawn, or cold-finished: MIL-HDBK-5J Design Allowables

show US units (ksi, Msi, lb/in³) open the MIL-HDBK-5J tool compare against temperature find alternatives

Material class	Aluminum
Alloy / temper / form	2024 / T42 / Bar and rod; rolled, drawn, or cold-finished
Specifications	AMS-QQ-A-225/6
Handbook	MIL-HDBK-5J, 31 January 2003, section 3.2.3.0, Table 3.2.3.0(i) (pdf page 83 of the chapter file)
Dimension bands	1
Density	2768 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 band		0.000–6.500 in (0–165.1 mm)
Specification		AMS-QQ-A-225/6
Basis		S
F_tu, MPa	L	427.5
F_ty, MPa	L	275.8
e, %	L	10
E, GPa		72.39
E_c, GPa		73.77
G, GPa		27.58
ν		0.33
ρ, kg/m³		2768

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.

Strength allowables at temperature, percent of room temperature

Moduli at temperature

Elongation and exposure effects

°C	F_tu	F_ty
38	99.4	100
93	95.8	98
149	88.9	95
204	71.4	84
26	37.9	47.6
316	20.3	22.8
371	11.8	12.9

Factors in percent of the room-temperature allowable.

Other 2024 Tables

2024-T3 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T3 Drawn tubing (Table 3.2.3.0(g))
2024-T3 Sheet (Table 3.2.3.0(b))
2024-T3, T3510, and T3511 Extruded bar, rod, and shapes (Table 3.2.3.0(j))
2024-T351 Bar and rod; rolled, drawn, or cold-finished (Table 3.2.3.0(i))
2024-T351 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T351 Plate (Table 3.2.3.0(b))
2024-T361 Bar and rod; rolled, drawn, or cold-finished (Table 3.2.3.0(i))
2024-T361 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T361 Plate (Table 3.2.3.0(b))
2024-T361 Sheet (Table 3.2.3.0(b))
2024-T4 Bar and rod; rolled, drawn, or cold-finished (Table 3.2.3.0(i))
2024-T4 Clad coiled sheet (Table 3.2.3.0(e))
2024-T4 Coiled Sheet (Table 3.2.3.0(b))
2024-T42 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T42 Drawn tubing (Table 3.2.3.0(g))
2024-T42 Extruded bar, rod, and shapes (Table 3.2.3.0(j))
2024-T42 Flat Sheet and Plate (Table 3.2.3.0(b))
2024-T6 Bar and rod; rolled, drawn, or cold finished (Table 3.2.3.0(i))
2024-T62 Bar and rod; rolled, drawn, or cold finished (Table 3.2.3.0(i))
2024-T62 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T62 Flat Sheet and Plate (Table 3.2.3.0(b))
2024-T72 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T72 Flat Sheet and Plate (Table 3.2.3.0(b))
2024-T81 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T81 Drawn tubing (Table 3.2.3.0(g))
2024-T81 Sheet (Table 3.2.3.0(b))
2024-T81, T8510, and T8511 Extruded bar, rod, and shapes (Table 3.2.3.0(j))
2024-T851 Bar and rod; rolled, drawn, or cold finished (Table 3.2.3.0(i))
2024-T851 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T851 Plate (Table 3.2.3.0(b))
2024-T861 Clad flat sheet and plate (Table 3.2.3.0(e))
2024-T861 Plate (Table 3.2.3.0(b))
2024-T861 Sheet (Table 3.2.3.0(b))

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.