ThePipingMart Blog Grades SAE AMS 5919 Cobalt Alloy – Composition, Properties, and Uses

SAE AMS 5919 Cobalt Alloy – Composition, Properties, and Uses

AMS 5919

AMS 5919 is a unique and widely-used material in manufacturing. This versatile alloy is known for its excellent corrosion resistance, strength, and durability. It has been around for decades, and its popularity means that many applications rely on this material for successful operation. This blog discusses everything you need to know about AMS 5919, including its composition, physical and mechanical properties, uses, hardness, and heat treatment.

AMS 5919 Composition

AMS 5919 is a nickel-based alloy containing titanium, chromium, and molybdenum. The chemical composition is carefully controlled to give it a combination of properties that make it perfect for various applications. The alloy is highly resistant to corrosion and oxidation, even in extreme environments, making it an ideal choice for critical components in aircraft engines, marine equipment, and chemical processing plants.

AMS 5919 Physical Properties

AMS 5919 has unique physical properties that set it apart from other materials. It has a melting point of 1395°C, making it suitable for high-temperature applications. The density of AMS 5919 is also relatively high at 8.19 g/cm³, making it ideal for applications that require high strength-to-weight ratios. Additionally, AMS 5919 has a high modulus of elasticity of 204 GPa, which makes it stiff and able to withstand stress without deforming.

AMS 5919 Mechanical Properties

Besides its physical properties, AMS 5919 also boasts remarkable mechanical properties. This alloy has excellent tensile strength, creep resistance, and fatigue resistance. It can withstand high loads and stresses without fracturing or deforming, making it an ideal choice for high-performance applications. AMS 5919 also has outstanding impact resistance, making it perfect for use in parts that experience high impact and shock loading.

AMS 5919 Uses

AMS 5919 has many uses across different industries. The most common applications include aircraft engine components, chemical processing equipment, and marine parts. It’s also used in high-performance automotive racing parts, medical implants, and energy production equipment. The vast array of applications of AMS 5919 is a testament to its excellent properties and suitability for use in a wide range of environments.

AMS 5919 Hardness

AMS 5919 has a high hardness, meaning it’s durable and can withstand wear and tear over time. This material has a maximum hardness of 34 Rockwell C, making it an excellent choice for parts that experience high wear, such as gears and bearings. Its high hardness also makes it resistant to deformation under stress, meaning it can maintain its shape and form even under high loads.

AMS 5919 Heat treatment

AMS 5919 can be heat-treated to improve strength, ductility, and corrosion resistance. Heat treatment involves heating the alloy to a specific temperature and cooling it slowly or rapidly to get the desired properties. AMS 5919 can achieve various microstructures and mechanical properties depending on the heat treatment process. The heat treatment process also helps to eliminate residual stresses in the material, making its performance more reliable and predictable.


AMS 5919 is a high-performance alloy that has become a staple in many industries due to its exceptional corrosion resistance, strength, and durability. The alloy’s unique properties make it suitable for various applications, from aircraft engines to medical implants. Its high modulus of elasticity, tensile strength, and impact resistance make it a high-performance material that can withstand high stresses and loads without deforming. If you need a material that can stand up to the most challenging environments and applications, AMS 5919 is an excellent choice.

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