If you are in the market for high-quality stainless steel, you have likely come across AMS 5726. It is a popular grade of martensitic, precipitation-hardening stainless steel widely used in aerospace and defence industries. This blog post will provide a comprehensive guide to everything you need to know about AMS 5726, including its composition, physical properties, mechanical properties, uses, hardness, and heat treatment.
What is AMS 5726?
Regarding high-strength alloys, AMS 5726 (also known as Stainless Steel A286) is one of the most reliable options. This particular alloy is a type of stainless steel designed to maintain its durability and resilience even at high temperatures. Thanks to its unique composition, AMS 5726 can resist corrosion and wear, making it an ideal choice for applications where strength and longevity are critical. From aerospace and automotive engineering to manufacturing and construction, AMS 5726 has proven to be a versatile and dependable material that can withstand some of the toughest imaginable conditions. This powerful alloy is worth considering whether you’re building a rocket or a bridge.
AMS 5726 Composition
AMS 5726 sheet is a high-strength, corrosion-resistant stainless steel primarily made of elemental composition, including carbon, chromium, nickel, phosphorus, and sulphur. It has a minimum carbon content of 0.06%, a maximum nickel content of 8.5%, and a maximum chromium content of 13.5%. Phosphorus and sulphur are alloying elements that improve machinability, strength, and corrosion resistance. It also contains a small amount of manganese and silicon for enhancing toughness.
| Element | Content (%) |
|---|---|
| Iron, Fe | 54 |
| Nickel, Ni | 25.5 |
| Chromium, Cr | 14.8 |
| Titanium, Ti | 2.13 |
| Molybdenum, Mo | 1.30 |
| Manganese, Mn | 1.0 |
| Silicon, Si | 0.50 |
| Vanadium, V | 0.30 |
| Aluminum, Al | 0.18 |
| Carbon, C | 0.040 |
| Phosphorous, P | 0.020 |
| Sulfur, S | 0.015 |
| Boron, B | 0.0060 |
AMS 5726 Physical Properties
The physical properties of AMS 5726 are essential for understanding its suitability for specific applications. It has a density of 7.81 g/cm^3, a melting point of 1398-1446°C (2550-2635°F), and a thermal conductivity of approximately 14.6 W/make at room temperature. AMS 5726 has excellent corrosion resistance and can withstand high temperatures well, making it an ideal choice for harsh environments.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.92 g/cm3 | 0.286 lb/in3 |
| Melting point | 1399°C | 2550°F |
AMS 5726 Mechanical Properties
AMS 5726 sheet has excellent toughness and high strength when properly heat-treated. The tensile strength of this stainless steel typically ranges from 1900-2200 MPa, and the yield strength is around 1700 MPa. AMS 5726 is flexible and can be shaped, bent, or formed into various parts and components. It also has excellent fatigue and corrosion resistance, making it ideal for use in demanding engineering applications.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 1035 MPa | 150100 psi |
| Yield strength (@strain 0.200%) | 759 MPa | 110000 psi |
| Elongation at break | 25% | 25% |
| Reduction of area | 40% | 40% |
| Hardness, Brinell (estimated from Rockwell C value for Brinell test with 3000 kg load/10 mm diameter ball) | 304 | 304 |
| Hardness, Knoop (estimated from Rockwell C value) | 330 | 330 |
| Hardness, Rockwell C | 32 | 32 |
| Hardness, Vickers (estimated from Rockwell C value) | 318 | 318 |
AMS 5726 Equivalent
| AISI 660 | AMS 5525 | UNS S66286 | AMS 5732 | AMS 5734 |
| AMS 5731 | AISI 662 | AMS 5737 | AMS 5804 | AMS 5895 |
| AMS 5853 | AMS 5805 | AMS 5858 | DIN 1.4943 | SPS M250 |
| DIN 1.4944 | GE B50T81 | GE B50T12 | GE B50T1181 | ASTM A453 Grade 660 |
| ASTM A638 Grade 660 | stainless steel A-286 |
AMS 5726 Uses
AMS 5726 plate is extensively used in the aerospace and defence industries, where high strength and resistance to corrosion are essential for aircraft and missile parts. It is also used in the medical and dental fields for creating orthodontic and surgical tools that require high strength and biocompatibility. Other applications of AMS 5726 include:
- Steam and gas turbines.
- Chemical processing plants.
- Different harsh operating environments where solid and durable materials are needed.
AMS 5726 Hardness
AMS 5726 bars can achieve a range of hardness levels, from HRC 33 to HRC 52, depending on the desired application, heat treatment, and processing. This stainless steel has excellent wear-resistance properties. Its hardness can be adjusted to meet specific requirements, making it an excellent choice for cutting and drilling tools and other wear-resistant applications.
AMS 5726 Heat Treatment
Heat treatment is crucial for achieving the desired properties of AMS 5726, including strength, hardness, and flexibility. It is typically annealed, quenched, and then aged at a specific temperature to improve the mechanical properties of the stainless steel. The ageing process can be adjusted to achieve different hardness levels and mechanical properties to meet specific applications.
Conclusion:
In conclusion, AMS 5726 material is a high-strength and corrosion-resistant martensitic stainless steel with excellent mechanical properties. It is widely used in demanding aerospace, defence, and medical applications. Its composition, physical properties, mechanical properties, uses, hardness, and heat treatment process are essential factors determining its suitability for specific applications. It is a versatile and durable material that can withstand harsh operating environments, making it an excellent choice for various industries. If you want high-quality stainless steel that can deliver top performance, consider using AMS 5726 for your next engineering project.
Abhishek is a seasoned blogger and industry expert, sharing his insights and knowledge on various topics. With his research, Abhishek offers valuable insights and tips for professionals and enthusiasts. Follow him for expert advice on the latest trends and developments in the metal industry.
