Table 2.4.1.0: (b). Material Specifications for 5Cr-Mo-V Aircraft Steel

The room-temperature properties of 5Cr-Mo-V aircraft steel are affected by extended exposure to temperatures near or above the tempering temperature. The limiting temperature to which the alloy may be exposed for extended periods without significantly affecting its room-temperature properties may be estimated at 100 °F below the tempering temperature for the desired strength level. The effect of temperature on the physical properties is shown in Figure 2.4.1.0.

Figure description:

Thermal Properties vs. Temperature Chart Analysis

Thermal Conductivity (K and Coefficient of Thermal Expansion (α vs. Temperature

Legend

• α - Between 70 °F and indicated temperature — color: black; symbol: Solid line
• K - At indicated temperature — color: black; symbol: Solid line

Annotations

• α (text_label - position: x ≈ 1150, y ≈ 7.3 (right axis))
• K (text_label - position: x ≈ 1150, y ≈ 16.6 (left axis))

Figure 2.4.1.0. Effect of temperature on the physical properties of 5Cr-Mo-V aircraft steel.

2.4.1.0 (c). Design Mechanical and Physical Properties of 5Cr-Mo-V Aircraft Steel Bar and Forging

• a Longitudinal properties applicable to cross-sectional area ≤25 sq. in.
• b Transverse properties applicable only to product sufficiently large to yield tensile specimens not less than 4.50 inches in length.
• c Design values are applicable only to parts for which the indicated $F_{m}$ has been substantiated by adequate quality control testing.

2.4.1.0 (d). Design Mechanical and Physical Properties of 5Cr-Mo-V Aircraft Steel Sheet, Strip, and Plate