ThePipingMart Blog Grades AMS 5577 Stainless Steel – Composition, Properties, and Uses

AMS 5577 Stainless Steel – Composition, Properties, and Uses

AMS 5577

AMS 5577 is a popular specification in the aerospace industry. It is a nickel-chromium alloy that is widely used in high-temperature applications. This blog post will cover everything you need about AMS 5577, including its composition, physical and mechanical properties, uses, hardness, and heat treatment.

What is AMS 5577?

AMS 5577 is a specification created by the SAE International Aerospace Materials Division. It outlines the requirements for a specific nickel-based alloy commonly used in manufacturing aerospace components. This alloy is known for its exceptional strength and resistance to high temperatures and corrosive environments, making it ideal for use in aircraft engines and other critical aerospace applications. The AMS 5577 specification ensures that this alloy meets strict quality control standards and will perform reliably under the most demanding conditions. Whether you’re a professional in the aerospace industry or interested in the high-tech materials used to build modern aircraft, learning about AMS 5577 can be a fascinating and rewarding experience.

AMS 5577 Composition

AMS 5577 is a nickel-chromium alloy that contains about 80% nickel and 20% chromium. It also has traces of iron, manganese, silicon, and carbon. This alloy is known for its excellent oxidation resistance, high-temperature strength, and corrosion resistance.

Element Content (%)
Iron, Fe 54
Chromium, Cr 24-26
Nickel, Ni 19-22
Manganese, Mn 2
Silicon, Si 1.50
Carbon, C 0.080
Phosphorous, P 0.045
Sulfur, S 0.030

AMS 5577 Physical Properties

AMS 5577 has a density of 8.22 g/cm³ and can withstand temperatures up to 2040 °C. The alloy has a melting point of 1390-1430 °C and a specific heat capacity of 429 J/kg-K. The coefficient of thermal expansion of AMS 5577 is 13.3 µm/m-K, and its thermal conductivity is 11 W/m-K.

Properties Metric Imperial
Density 8 g/cm3 0.289 lb/in³
Melting point 1455°C 2650°F

AMS 5577 Mechanical Properties

AMS 5577 has excellent mechanical properties, making it suitable for high-temperature applications. Its ultimate tensile strength is 680 MPa, and its yield strength is 305 MPa. The alloy has a modulus of elasticity of 220 GPa and a Poisson’s ratio of 0.28. The elongation at break of AMS 5577 is 40%.

Properties Metric Imperial
Tensile strength 515 MPa 74695 psi
Yield strength 205 MPa 29733 psi
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Elongation 40% 40%
Reduction of area 50% 50%
Hardness 95 95

ASM 5577 Thermal Properties

Properties Metric Imperial
Thermal conductivity (for stainless 310) 14.2 W/mK 98.5 BTU in/hr ft².°F

ASM 5572 Equivalent

AMS 5521 ASTM A240 ASTM A479 DIN 1.4845
AMS 5572 ASTM A249 ASTM A511 QQ S763
AMS 5577 ASTM A276 ASTM A554 ASME SA240
AMS 5651 ASTM A312 ASTM A580 ASME SA479
ASTM A167 ASTM A314 ASTM A813 SAE 30310S
ASTM A213 ASTM A473 ASTM A814 SAE J405 (30310S)

AMS 5577 Uses

AMS 5577 is commonly used in the aerospace industry to produce gas turbine components, such as compressors and turbine blades, afterburner parts, and combustor liners. The alloy is also used in nuclear reactors, chemical processing equipment, and heat treatment furnace components.

AMS 5577 Hardness

AMS 5577 has a maximum hardness of 38 HRC in the annealed condition. It can be hardened by heat treatment, and the typical hardness after heat treatment is 45-50 HRC.

AMS 5577 Heat treatment

AMS 5577 can be heat-treated by annealing, solution annealing, and precipitation hardening. The annealing process involves heating the alloy to 1000-1200 °C and slowly cooling it to room temperature. Solution annealing involves heating the alloy to 1150-1200 °C and rapidly cooling it in water or air. Precipitation hardening involves heating the alloy to 980-1020 °C and quenching it in water. The hardness of the alloy can be increased by precipitation hardening.


AMS 5577 is a nickel-chromium alloy widely used in the aerospace industry for high-temperature applications. The alloy has excellent physical and mechanical properties, including high-temperature strength, corrosion resistance, and oxidation resistance. AMS 5577 can be hardened by heat treatment and is commonly used for gas turbine components, nuclear reactors, and chemical processing equipment. Its maximum hardness is 38 HRC in the annealed condition, and its typical hardness after heat treatment is 45-50 HRC.

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