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AISI 8630-Normalized and tempered, stress relieved (95 ksi) Sheet, strip, and plate: MIL-HDBK-5J Design Allowables

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Material class	Steel
Alloy / temper / form	AISI 8630 / Normalized and tempered, stress relieved (95 ksi) / Sheet, strip, and plate
Specifications	AMS-S-18728
Handbook	MIL-HDBK-5J, 31 January 2003, section 2.3.1.0, Table 2.3.1.0(c) (pdf page 17 of the chapter file)
Dimension bands	1
Density	0.283 lb/in3

Design Mechanical and Physical Properties (room temperature)

As printed in the handbook table. 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		0.000–0.188 in
Specification		AMS-S-18728
Basis		S
F_tu, ksi		95
F_ty, ksi		75
F_cy, ksi		75
F_su, ksi		57
F_bru (e/D = 2.0), ksi		200
F_bry (e/D = 2.0), ksi		129
E, Msi		29
E_c, Msi		29
G, Msi		11
ν		0.32
ρ, lb/in3		0.283

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

°F	F_tu	F_ty	F_cy	F_su	F_bru	F_bry
-100	105.2	106.7
0	101.3	102.8
100	99.2	98.8	98.6	99.5	99.8	99.3
200	98.1	94.8	91.1	97.3	97.4	96.6
300	96.7	90.8	86.7	96.2	96.5	95.5
400	95.1	86.9	83.8	95.5	96.1	94.3
500	92.4	82.9	81.5	94.2	95.4	93.8
600	88.9	78.9	78.6	91.6	91.4	91.7
700	83.4	74.4	74	86.5	83.7	86.9
800	76.9	68.4	65.7	77.4	74.5	77.9
1000	58	42.6		56.2	54.2	56.9
1200	35.2	23.1		37.2

Factors in percent of the room-temperature allowable.

Other AISI 8630 Tables

AISI 8630-Normalized and tempered, stress relieved Tubing (Table 2.3.1.0(g))
AISI 8630-Normalized and tempered, stress relieved (90 ksi) Sheet, strip, and plate (Table 2.3.1.0(c))
AISI 8630-Quenched and tempered Bars and forgings (Table 2.3.1.0(c))

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.