| Specification | AMS 4439 |
| Form | Sand casting |
| Temper | T5 |
| Thickness, in | Any area |
| Basis | S |
| Mechanical Propertiesa: | |
| Ftu, ksi | 26b |
| Fty, ksi | 17.5b |
| Fcy, ksi | 15 |
| Fsu, ksi | 17 |
| Fbruc, ksi: | |
| (e/D = 1.5) | 38 |
| (e/D = 2.0) | 49 |
| Fbryc, ksi: | |
| (e/D = 1.5) | 31 |
| (e/D = 2.0) | 35 |
| e, percent | 2b |
| E, 103 ksi | 6.5 |
| Ec, 103 ksi | 6.5 |
| G, 103 ksi | 2.4 |
| μ | 0.35 |
| Physical Properties: | |
| ω, lb/in.3 | 0.0656 |
| C, Btu/(lb)(°F) | 0.234 (at 68°F) |
| K, Btu/[(hr)(ft2)(°F)/ft] | See Figure 4.3.6.0 |
| a, 10-6 in./in./°F | 15.5 (68 to 212°F) |
- a The mechanical properties shown are reliably obtainable when castings are produced under the quality assurance provisions of AMS 4439. These provisions require preproduction approval, documentation of foundry procedures, and specific testing procedures for the acceptance of each production lot of castings. Strict adherence to these requirements is mandatory if these properties are to be reliably assured in each casting.
- b Conformance to tensile property requirements is determined by testing specimens cut from casting only when specified on drawing.
- c Bearing values are “dry pin” values per Section 1.4.7.1.