ThePipingMart Blog Grades SAE AMS 6525 Steel – Composition, Properties, and Uses

SAE AMS 6525 Steel – Composition, Properties, and Uses

AMS 6525

AMS 6525 is a type of alloy steel that has become popular in different industrial applications due to its superior properties. This material is also known by the name 9310, which is its old UNS number. This blog post will discuss everything you need to know about AMS 6525, including its composition, physical and mechanical properties, uses, hardness, and heat treatment.

What is AMS 6525?

AMS 6525 is a specification that defines the requirements for heat-treated bar, wire, and forgings made from nickel-chromium-molybdenum-vanadium alloy steel. This particular alloy steel is renowned for its high strength and durability, making it a popular choice for applications where toughness and resistance to wear, fatigue, and impact are crucial. The AMS6525 specification sets out specific compositions, heat treatment, and mechanical properties that must be met for the steel to comply. With numerous applications, from aircraft engines to heavy machinery, AMS6525 is an important specification in the manufacturing industry.

AMS 6525 Composition

AMS 6525 is a low-alloy steel containing nickel, chromium, and molybdenum elements. The AMS 2301 standard specifies the chemical composition of AMS 6525. The alloy steel composition of this material gives it unique mechanical properties, making it an ideal material for use in different industrial applications.

AMS 6525 Physical Properties

The physical properties of AMS 6525 include a density of 7.85 g/cm³ and a melting point of 1460°C. These properties mean that the material has good resistance to wear and deformation.

AMS 6525 Mechanical Properties

AMS 6525 has excellent mechanical properties such as high tensile and yield strength, toughness, and wear resistance. It has a tensile strength of up to 2010Mpa and a yield strength of up to 1875Mpa. The material also has good fatigue properties, ideal for high-stress applications.

AMS 6525 Uses

AMS 6525 has diverse applications in different industries. It is commonly used in the aerospace industry to manufacture aircraft landing gear and in the automotive industry to produce gears, engines, and transmission components. This material is also used in the defence and energy sectors to manufacture critical components in heavy machinery.

AMS 6525 Hardness

The hardness of AMS 6525 depends on the manufacturing process used. After heat treatment, the material can have a hardness ranging from 269 to 341HB. The high hardness level makes it an ideal material for manufacturing components requiring high wear resistance.

AMS 6525 Heat treatment

Heat treatment is essential to achieve the desired mechanical properties of AMS 6525. Heat treatment involves heating the material to a specific temperature and then rapidly cooling it to enhance its mechanical properties. Heat treatment also affects the material’s hardness, strength, and toughness. Typical heat treatment processes for AMS 6525 include quenching and tempering.


AMS 6525 material is a low alloy steel popular because of its unique chemical composition and excellent mechanical properties. This material has diverse applications in the aerospace, automotive, and defence industries. The heat treatment process is crucial in achieving the desired mechanical properties of this material. AMS 6525 is a high-performance material that has proven ideal for manufacturing components that require high tensile and yield strength, wear resistance, and toughness.

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