ThePipingMart Blog Grades AMS 5609 Stainless Steel – Composition, Properties, and Uses

AMS 5609 Stainless Steel – Composition, Properties, and Uses

AMS 5609

AMS 5609 is a type of stainless steel commonly used in the aerospace industry. It has a unique set of properties that make it ideal for use in harsh environments, such as high temperatures, extreme pressures, and corrosive atmospheres. This blog post will discuss the composition, physical and mechanical properties, uses, hardness, and heat treatment of AMS 5609 material.

What is AMS 5609?

AMS 5609 (also known as 410 Stainless Steel) is a type of stainless steel specifically designed for high-temperature environments. This steel grade is extremely resistant to corrosion and oxidation, making it ideal for use in various industries, from aerospace to power generation. AMS5609 plate is also known for its exceptional strength and durability, which makes it a popular choice for applications that require a high degree of toughness and reliability. Whether you are looking to build an engine that can withstand extreme temperatures or design new equipment for use in harsh environments, AMS5609 is an excellent choice. With its superior performance, this type of stainless steel is quickly becoming a favourite among engineers and designers across industries.

What Form Is AMS 5609 Available at Piping Mart?

  • Nut
  • Bar
  • Bolt
  • Pipe
  • Screw
  • Tubing
  • Valves
  • Washers
  • Flanges
  • Fasteners
  • Electrodes
  • Stud Bolts
  • Sheet Plates
  • Round Pipes
  • Sheet Pipes
  • Pipe Fittings
  • Forged Fitting
  • ERW Pipes
  • Stud Bolts

AMS 5609 Composition

AMS 5609 sheet is a type of precipitation-hardening stainless steel. Its chemical composition includes 13.5-15.5% chromium, 2.0-3.0% molybdenum, 0.15-0.45% titanium, and 0.05-0.15% carbon. Adding molybdenum and titanium helps increase its resistance to corrosion and high-temperature oxidation.

Grade C Mn Si P S Cr Ni
5609 min.






AMS 5609 Physical Properties

The density of AMS 5609 is 7.81 g/cm³. Its melting point is around 1399°C (2550°F). It has a thermal conductivity of 14.6 W/m-K and a specific heat capacity of 0.5 J/g-K. It also has a high thermal expansion coefficient, making it prone to distortion when subjected to heat.

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (μm/m/°C) Thermal Conductivity (W/m.K) Specific Heat 0-100 °C (J/kg.K) Electrical Resistivity (nΩ.m)
0-100 °C 0-315 °C 0-538 °C at 100 °C at 500 °C
5609 7800 200 9.9 11 11.5 24.9 28.7 460 570

AMS 5609 Mechanical Properties

AMS 5609 sheet has excellent mechanical properties, such as high strength and toughness. Its ultimate tensile strength ranges from 1625-1950 MPa, with a yield strength of 1325-1625 MPa. It has a high elongation capacity (15-25%) and can withstand high-stress levels while retaining its shape and structural integrity.

Tempering Temperature (°C) Tensile Strength (MPa) Yield Strength 0.2% Proof (MPa) Elongation (% in 50 mm) Hardness Brinell (HB) Impact Charpy V (J)
Annealed * 480 min 275 min 16 min
204 1475 1005 11 400 30
316 1470 961 18 400 36
427 1340 920 18.5 405 #
538 985 730 16 321 #
593 870 675 20 255 39
650 300 270 29.5 225 80

AMS 5609 Equivalents

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
AMS 5609 S41000 410S21 56A 1.4006 X12Cr13 2302 SUS 410

AMS 5609 Uses

AMS 5609 wire is commonly used in the aerospace industry for manufacturing components such as turbine blades, exhaust manifolds, and high-temperature fasteners. It is also used in the chemical processing industry for applications requiring high corrosion resistance, such as in tanks, piping, and heat exchangers.

AMS 5609 Hardness

The hardness of AMS 5609 can be increased through precipitation hardening. The material is aged at a temperature around 480-510°C (900-950°F) for several hours, facilitating the formation of a fine dispersion of intermetallic particles. This process increases the strength and hardness of the material, making it suitable for use in high-stress and high-temperature applications.

AMS 5609 Heat Treatment

AMS 5609 is typically heat treated in annealed solution. It is first heated to around 1010°C (1850°F) and then rapidly quenched to room temperature, which helps to dissolve any carbides and promote a homogeneous microstructure. This process improves the material’s formability and machinability.


AMS 5609 bar is an excellent choice of material for applications that require high strength, toughness, and resistance to corrosion and high-temperature environment. Its unique physical and mechanical properties make it ideal for harsh conditions commonly found in the aerospace and chemical processing industries. While the hardness and heat treatment of AMS 5609 material is easily adjustable, its initial composition and complex nature make it a material that requires careful attention during its selection and application.

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