ThePipingMart Blog Grades AMS 5616 Stainless Steel – Composition, Properties, and Uses

AMS 5616 Stainless Steel – Composition, Properties, and Uses

AMS 5616

In the world of manufacturing, engineering, and aerospace, the search for stronger, more durable metals and alloys is an ongoing quest. One such metal that has been a reliable answer to this need is AMS 5616. This blog post will explore AMS 5616’s composition, physical and mechanical properties, hardness, and heat treatment.

What is AMS 5616?

AMS 5616 also known as 418 Stainless Steel. This special steel is known for its exceptional strength and durability, making it a popular choice for various applications, including the aerospace and automotive industries. Its precise chemical composition and heat treatment enable it to withstand extreme temperatures and resist corrosion. If you’re in the market for high-performance steel, AMS 5616 is worth considering.

AMS 5616 Composition

AMS 5616 is a high-strength, corrosion-resistant martensitic steel often used in aerospace, aviation, and other high-performance industries. It is a common type of stainless steel often referred to by the brand name 17-4 PH. AMS 5616 includes chromium, nickel, copper, and molybdenum.

Element Content (%)
Iron, Fe 82
Chromium, Cr 13
Tungsten, W 3
Nickel, Ni 2

AMS 5616 Physical properties

The physical properties of AMS 5616 include high strength and hardness, which make it an ideal material for parts that require durability and wear resistance. Additionally, it has good corrosion resistance and is non-magnetic.

AMS 5616 Mechanical properties

Mechanical properties of AMS 5616 include high tensile strength, good flexibility, and good elongation. These characteristics make AMS 5616 ideal for parts that must endure the stresses and strains of constant use.

Properties Metric Imperial
Tensile strength 895 MPa 130000 psi
Yield strength (@strain 0.200 %) 725 MPa 105000 psi
Modulus of elasticity 190-210 GPa 27557- 30457 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Elongation at break 15% 15%
Hardness, Rockwell C 25 25

AMS 5616 Uses

AMS 5616 has various industrial applications, including aircraft fittings and fasteners, pump shafts, gears, and valve parts. Additionally, it is often used in the nuclear industry and the medical and defence industries.

AMS 5616 Hardness

The hardness of AMS 5616 can vary depending on specific heat treatments. The most common heat treatment process for AMS 5616 is ageing, which can increase the hardness and strength of the metal.

AMS 5616 Heat treatment

Heat treatment is also an important aspect of working with AMS 5616. The metal can be heat treated to increase strength, flexibility, and toughness. Also, heat treatment can help improve the metal’s corrosion resistance and wear resistance.


AMS 5616 material is a strong, durable metal that is ideal for use in high-performance industries. Its high strength, corrosion resistance, and wear resistance make it a reliable choice for parts that must withstand constant use and stress. Whether used in aircraft fittings, nuclear facilities, medical equipment or defence applications, AMS 5616 is ideal for demanding environments. With the right heat treatments, this metal’s hardness, strength, and flexibility can be improved even more, making it a versatile and robust option for many industrial applications.

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