What material is AMS 5596?
AMS 5596 is a designation of Nickel Inconel 718, itself a nickel-chromium alloy with high strength, corrosion and oxidation resistance, and excellent tensile and impact strength at cryogenic temperatures. Full chemical composition is 52.5Ni – 19Cr – 3.0Mo – 5.1Cb (Nb) – 0.90Ti – 0.50Al – 18Fe.
What is the AMS 5596 equivalent to?
The AMS 5596 equivalent is primarily Inconel 718 (Alloy 718), a high-strength, corrosion-resistant nickel-chromium alloy known for its excellent properties at extreme temperatures (cryogenic to 1300°F/704°C) and used for aerospace parts, with key identifiers being UNS N07718 and German standard Werkstoff Nr. 2.4668.
Alloy 718 Plate Specification
| Alloy 718 Plate Specification | MSRR, BS, ASTM B670 UNS N07718, ASME SB670 |
|---|---|
| ASTM B670 UNS N07718 Plate Sizes (mm) | 1000 x 2000, 1220 x 2440, 1500 x 3000, 2000 x 2000, 2000 x 4000 |
| SB 670 UNS N07718 Plate Thickness | 0.1 to 100 mm Thk |
| 2.4668 Inconel 718 Plate Width | 10-2500mm |
| Nickel Alloy 718 Plate Length | 2m, 2.44m, 3m, or as required |
| Alloy 718 UNS N07718 Sheet AMS | AMS |
| 718 AMS 5597 Plate Finish | HR, CR, 2B, 2D, BA, NO(8), SATIN |
| ASTM B670 N07718 Sheet Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Inconel 718 Plate Stock in form of |
Coils, hot-rolled, Rolling, soft-annealed, Blank, Flats, Tread, Flat, descaled, Circle, sheared, Sheet, Foils, Strip, Plate, Clad, Checker, cold-rolled, annealed, Rolls, Shim, |
Nominal Composition
| C | Mn | Si | P | S | Cr | Ni | Mo | Nb | Ti | Al | Co | Fe | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MIN | – | – | – | – | – | 17.00 | 50.00 | 2.80 | 4.75 | 0.65 | 0.20 | – | – |
| MAX | 0.08 | 0.35 | 0.35 | 0.015 | 0.015 | 21.00 | 55.00 | 3.30 | 5.50 | 1.15 | 0.80 | 1.00 | BAL |
Physical Properties
| At 70°F | At 20°C | |
|---|---|---|
| Density | 0.296 lb./in³ | 8.19 g/cm³ |
| Modulus of Elasticity (E) | 29 x 10³ ksi | 200 GPa |
| Modulus of Rigidity (G) | 11.6 x 10³ ksi | 80 GPa |
| Coefficient of Expansion | 7.7 microinches/in.-°F (°F) | 13.9 μm/m-°C (°C) |
| Electrical Resistivity | 47.5 μ ohm.in | 121 μ ohm.cm |
| Thermal Conductivity | 79 Btu-in./ft.²hr.-°F | 11.4 W/m-K |
Typical Mechanical Properties
| Condition | Heat Treatment | Tensile Strength | Suggested Operating Conditions |
|---|---|---|---|
| Annealed | 1800°F (980°C) | 120 – 140 ksi (830-965 MPa) | -330°F to 1200°F (-200°C to 650°C) |
| Spring Temper | – | 180 – 230 ksi (1240 – 1585 MPa) | -330°F to 1200°F (-200°C to 650°C) |
| After Precipitation Heat Treat | Per AMS 5596 | 190 – 240 ksi (1310 – 1655 MPa) | -330°F to 1200°F (-200°C to 650°C) |
Packaging: Bare bundles, horizontally strapped.
Marking: Paint or labels applied to the strapping surface, indicating required information.
Surface Treatment: 2B and No.1
Testing: Chemical composition analysis, tensile test, flattening test, impact test, leak test, dimensional test, and visual inspection.
Test Certificates: Factory test certificate, TPL report, and raw material certificate. Delivery Time: Stock items shipped immediately, customized products 15-30 days.
Value-Added Services: Pre-treatment, parts cutting, third-party inspection, and sample services.






