ThePipingMart Blog Grades AMS 5844 Alloy Steel – Composition, Properties, and Uses

AMS 5844 Alloy Steel – Composition, Properties, and Uses

AMS 5844

AMS 5844 may sound complicated, but it is important to understand, especially in the aerospace and defence industry. AMS 5844 is a high-strength, corrosion-resistant steel alloy known for its toughness and durability. This blog post will explore the details of AMS 5844 and provide an in-depth look at its composition, physical properties, mechanical properties, uses, hardness, and heat treatment.

What is AMS 5844?

AMS 5844 (also known as Alloy Cobalt MP35N)is a widely used aerospace steel with exceptional strength, durability, and resistance to high temperatures and corrosion. This premium-grade material is designed to withstand extreme environments and is commonly used in applications such as jet engines, gas turbines, and rocket engines. Its unique composition includes high nickel, chromium, and molybdenum levels, giving it excellent mechanical properties and fatigue resistance. Whether powering a spacecraft or propelling a fighter jet, AMS 5844 is a go-to option for engineers looking for high-performance steel to handle anything the skies throw at it.

AMS 5844 Composition

AMS 5844 is a high-performance steel alloy made up of a combination of elements such as nickel, chromium, molybdenum, and titanium. The composition of AMS 5844 is carefully controlled to achieve exceptional strength and durability.

Chemical Composition Limits
Weight % Ni Co Cr Mo Ti Fe Si Mn P B S C
MP35N® 33-37 Bal 19-21 9-10.5 1 max 1 max 0.15 max 0.15 max 0.015 max 0.010 max 0.010 max 0.03 max

AMS 5844 Mechanical Properties

AMS 5844 has an ultimate tensile strength of 240 ksi, which makes it stronger and more durable than most other alloys. It also has a high yield strength of 200 ksi, which ensures it can withstand high-stress levels. Additionally, AMS 5844 is flexible and can be easily formed or machined.

AMS 5844 Uses

AMS 5844 is commonly used in the aerospace and defence industries. Some typical uses of AMS 5844 include turbine blades, high-stress engine components, and landing gear. Due to its biocompatibility and excellent strength, it is also used in medical applications, such as surgical implants and orthopaedic instruments.

AMS 5844 Hardness

AMS 5844 is an extremely hard steel alloy resistant to wear and tear. It has excellent toughness and can withstand heavy loads without bending or breaking. Its Rockwell hardness ranges from 41 to 56 HRC, depending on the condition.

AMS 5844 Heat Treatment

AMS 5844 can be heat-treated to improve its physical and mechanical properties. The heat treatment can be done at various temperature ranges and cooling rates depending on the desired properties. Heat treatment can modify the alloy’s hardness, flexibility, and strength.


AMS 5844 material is an important steel alloy widely used in aerospace and defence industries due to its excellent physical and mechanical properties. Understanding its composition, physical and mechanical properties use, hardness and heat treatment is crucial to ensuring it is used most efficiently and effectively. As an expert, I highly recommend consulting with professionals before using this alloy to ensure the process is done correctly and efficiently.

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