ThePipingMart Blog Grades AMS 5508 Greek Ascoloy Stainless Steel – Composition, Properties, and Uses

AMS 5508 Greek Ascoloy Stainless Steel – Composition, Properties, and Uses

AMS 5508

If you are in the aerospace and engineering industry, the abbreviation “AMS 5508” will sound quite familiar to you. AMS 5508 is a low-carbon steel material commonly used to manufacture various aircraft and engineering components. In this blog, we will dive deep into AMS 5508 by looking at its composition, physical and mechanical properties, uses, hardness, and heat treatment methods.

What is AMS 5508?

AMS5508 is a significant material specification used in the manufacturing world, and it has significantly impacted the production of various products. This specification sets the minimum requirements for the chemical composition and mechanical properties of particular grades of stainless steel, which is highly corrosion-resistant and is commonly used in aerospace, military, and industrial applications. AMS5508 provides a standard that ensures the highest quality of materials used to produce critical components such as gears, shafts, and bearings, making them stronger and more durable. This specification has undoubtedly revolutionized the manufacturing industry, and its impact is evident through product quality.

AMS 5508 Composition

AMS 5508 is a low-carbon steel material which consists of 0.05% carbon, 0.20% manganese, 0.20% silicon, 0.50% chromium, and 0.40% nickel. This chemical composition makes AMS 5508 a great alternative for those who want carbon-free materials but still want the necessary strength and toughness for their application.

AMS 5508 Physical Properties

The physical properties of AMS 5508 make it suitable for various applications. This material has a density of approximately 7.85 g/cm³ and a specific heat capacity of 494 J/Kg. K. It has a melting point of roughly 1415°C (2579°F) and a thermal expansion coefficient of 11.7 µm/m°C.

AMS 5508 Mechanical Properties

AMS 5508 is well-known for its exceptional mechanical properties, making it an ideal material for various applications that require high strength and flexibility. Its tensile strength is between 755-910 MPa, and its yield strength ranges from 510-690 MPa. AMS 5508 also has a high elongation rate of up to 15% and remarkable impact resistance that can withstand up to 67J.

AMS 5508 Uses

AMS 5508 is a versatile material widely used in the aerospace and engineering industries. It is commonly used for manufacturing aircraft engine components, landing gears, and hydraulic system parts. It is also a popular material in the medical field, used to make surgical instruments and implants.

AMS 5508 Hardness

AMS 5508 is known for its high hardness, which makes it a perfect choice for many applications that require hardness and strength. The Rockwell hardness of AMS 5508 ranges from 30-40 HRC, which means it can withstand high-impact loads and wear resistance.

AMS 5508 Heat treatment

AMS 5508 can undergo several heat treatment processes to enhance its mechanical and physical properties, including annealing, tempering, and quenching. Annealing AMS 5508 at 850-865°C for 1-3 hours will improve flexibility and toughness. Tempering AMS 5508 at 150-400°C can significantly improve strength and toughness. Quenching and tempering can also improve its hardness and tensile strength.


In conclusion, AMS 5508 material is a highly versatile material with excellent mechanical and physical properties. Its unique composition makes it an ideal material for various applications requiring high strength and good toughness. Understanding its properties and applications can help you decide when considering AMS 5508 for your project. If you need to work with AMS 5508, follow the recommended heat treatment processes to ensure optimum performance.

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