Alloy steels are widely used in various industries due to their excellent strength, toughness, wear resistance, and corrosion resistance properties. AMS 5706 is one such alloy steel with excellent mechanical and physical properties. This blog will discuss everything you need to know about AMS 5706 – its composition, physical and mechanical properties, uses, and heat treatment.
What is AMS 5706?
AMS 5706 metal is a high-performance alloy widely used in various industries, from aerospace to medical. This unique type of metal is known for its exceptional strength, corrosion resistance, and durability. It is composed of a combination of nickel, chromium, and molybdenum, giving it incredible properties. AMS 5706 metal is particularly valued for its ability to withstand extreme temperatures and high-stress levels without degrading or bending, making it an ideal material for critical applications. Whether it’s building a rocket or a surgical instrument, AMS 5706 metal provides the strength and reliability that engineers and designers demand.
AMS 5706 Composition
AMS 5706 material is a nickel-chromium-molybdenum alloy steel known for its exceptional strength, toughness, and wear resistance. It contains high nickel and chromium levels, enhancing its corrosion resistance properties. The molybdenum provides high creep strength, while the carbon content improves the hardness and wear resistance of the steel.
| Element | Content (%) |
|---|---|
| Nickel, Ni | 56 |
| Chromium, Cr | 19 |
| Cobalt, Co | 13.5 |
| Molybdenum, Mo | 4.30 |
| Titanium, Ti | 3 |
| Iron, Fe | ≤ 2 |
| Aluminum, Al | 1.50 |
| Silicon, Si | ≤ 0.15 |
| Manganese, Mn | ≤ 0.10 |
| Carbon, C | 0.080 |
| Zirconium, Zr | 0.050 |
| Boron, B | 0.0060 |
AMS 5706 Physical Properties
AMS 5706 has a density of 7.85 g/cm3 and a melting point of 1398°C. It can withstand high temperatures without significant deformation, making it an ideal material for high-temperature applications. Its coefficient of thermal expansion is 12.5 x 10^-6/°C, and its thermal conductivity is 24.9 W/m-K.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 8.20 g/cm3 | 0.296 lb/in3 |
| Melting point | 1358°C | 2475°F |
AMS 5706 Mechanical Properties
AMS 5706 sheets has excellent tensile strength, yield strength, and elongation properties. It can withstand high stress and strain without fracturing or deforming. It has a minimum tensile strength of 150 ksi, a minimum yield strength of 100 ksi, and a minimum elongation of 15%.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 1335 MPa | 193600 psi |
| Yield strength (@ strain 0.200%) | 910 MPa | 132000 psi |
| Modulus of elasticity (@20°C) | 213 GPa | 30900 ksi |
| Elongation at break (in 51 mm) | 26.6% | 26.6% |
AMS 5706 Thermal Properties
| Properties | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (@20-500°C/68-932°F) | 13.9 µm/m°C | 7.72 µin/in°F |
| Thermal conductivity (@ 200°C/392°F) | 12.6 W/mK | 87.4 BTU in/hr.ft².°F |
AMS 5706 Equivalent
| AISI 685 | UNS N07001 | ASTM B637 | PWA 1007 | AMS 5544 |
| AMS 5708 | DIN 2.4654 | PWA 1030 | AMS 5586 | AMS 5709 |
| PWA 1005 | PWA 686 | AMS 5704 | AMS 5828 | PWA 1006 |
| PWA 687 | SPS M175 | Waspalloy |
AMS 5706 Uses
AMS 5706 tubing is widely used in various industrial applications, including gas turbines, missiles, rocket engines, and other high-temperature applications. It also manufactures valves, fittings, and fasteners requiring high strength and corrosion resistance.
AMS 5706 Hardness
The hardness of AMS 5706 depends on the heat treatment process. In the annealed condition, it has a hardness of 187 HB; in the aged condition, it can reach a maximum hardness of 52 HRC. This makes it an ideal material for applications that require high wear resistance and hardness.
AMS 5706 Heat Treatment
AMS 5706 material can be heat-treated to improve its mechanical and physical properties. It can be annealed, solution-treated, or aged to achieve specific properties. The annealing process involves heating the steel to 845°C and slowly cooling it to room temperature. This process improves the toughness and ductility of the steel. The solution treatment involves heating the steel to a temperature of 1095-1145°C followed by rapid cooling in water or oil. This process improves the strength and ductility of the steel. The ageing process involves heating the steel to a temperature of 540-595°C for several hours and then cooling it to room temperature. This process improves the hardness and wear resistance of the steel.
Conclusion:
AMS 5706 is a nickel-chromium-molybdenum alloy steel known for its exceptional strength, toughness, and wear resistance. It has excellent mechanical and physical properties, including high tensile strength, yield strength, and elongation properties. It is widely used in various high-temperature applications and is an ideal material for valves, fittings, and fasteners that require high strength and corrosion resistance. The heat treatment process can be used to improve its mechanical and physical properties, making it an ideal material for various industrial applications.
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