ThePipingMart Blog Grades AMS 5763 Stainless Steel – Composition, Properties, and Uses

AMS 5763 Stainless Steel – Composition, Properties, and Uses

AMS 5763

If you are in the aerospace or power generation industry, you might be familiar with AMS 5763. But for anyone else, this material might sound like a foreign term. AMS 5763 is an alloy steel commonly used for high-temperature applications. In this blog post, we’ll dive deeper into what AMS 5763 is made of, its physical and mechanical properties, and how it is used in different industries.

What is AMS 5763

AMS 5763 (also known as 450 Stainless Steel) is a high-temperature steel alloy with exceptional corrosion resistance and excellent mechanical properties. This alloy is also known as precipitation-hardening steel, which means that it undergoes a process of heat treatment and cooling to enhance its strength and durability over long periods. With its ability to withstand high temperatures, AMS 5763 is commonly used in aircraft engines, gas turbines, and other critical applications where reliability and performance are crucial. As an expert in the field, I can confidently recommend AMS5763 as one of the most reliable and effective steel alloys available for high-temperature applications.

AMS 5763 Composition

AMS 5763 bar is an austenitic steel that contains chromium, nickel, and molybdenum. The percentage of each element can vary slightly depending on the manufacturer, but the composition typically ranges from 25-30% chromium, 8-12% nickel, and 1.5-2.5% molybdenum. This combination of elements provides AMS 5763 excellent resistance to high-temperature oxidation and corrosion.

Element Content (%)
Iron, Fe 74.3
Chromium, Cr 15
Nickel, Ni 6
Copper, Cu 1.5
Silicon, Si 1.0
Manganese, Mn 1.0
Molybdenum, Mo 0.75
Niobium, Nb (Columbium, Cb) 0.40
Carbon, C 0.050
Phosphorous, P 0.030
Sulfur, S 0.030

AMS 5763 Physical Properties

One of the most notable physical properties of AMS 5763 sheet is its high melting point. This material can withstand temperatures up to 2150°F (1177°C), making it ideal for high-temperature environments. AMS 5763 also has a high density and a low coefficient of thermal expansion, which means it can maintain its shape and size even when exposed to extreme heating and cooling cycles.

Properties Metric Imperial
Density 7.80 cm³ 0.282 lb/in³

AMS 5763 Mechanical Properties

AMS 5763 plate has excellent mechanical properties, making it suitable for demanding applications. This material has high tensile strength, yield strength, and elongation values, which means it can withstand high stress and strain without breaking or deforming. AMS 5763 also has a high hardness value, which makes it resistant to wear and tear.

Properties Metric Imperial
Tensile strength 986 MPa 143000 psi
Yield strength (@ strain 0.200%) 814 MPa 118000 psi
Bulk modulus (typical for steel) 166 GPa 24100 ksi
Shear modulus (typical for steel) 83.9 GPa 12200 ksi
Charpy impact 125 – 141 J 92.2 – 104 ft-lb
Elongation at break (gage length is 4 times specimen diameter) 13.30% 13.30%
Hardness, Brinell (converted from Rockwell C hardness) 278 278
Hardness, Knoop (converted from Rockwell C hardness) 296 296
Hardness, Rockwell C 28 28
Hardness, Vickers (converted from Rockwell C hardness) 287 287

AMS 5763 Thermal Properties

Properties Metric Imperial
Thermal expansion co-efficient ( @ 20-100°C/68-212°F) 10.1 µm/m°C 5.61 µin/in°F
Thermal conductivity (typical value for stainless steel) 20.7 W/mK 144 BTU in/hr.ft².°F

AMS 5763 Equivalent

  • AMS 5773
  • AMS 5859
  • AMS 5863
  • ASTM A564 (XM-25)
  • ASTM A693 (XM-25)
  • ASTM A705 (XM-25)

AMS 5763 Uses

AMS 5763 tubing is primarily used in the aerospace and power generation industries for applications that require high-temperature resistance and strength. This material is commonly used in gas turbine engines, steam generators, and exhaust systems. AMS 5763 is also used in chemical processing plants, where it can withstand exposure to harsh chemicals and acidic environments.

AMS 5763 Hardness

AMS 5763 has a maximum hardness of 30 HRC (Rockwell C Scale). This hardness level provides excellent wear resistance and durability, ideal for harsh and demanding environments. With proper heat treatment, AMS 5763 can achieve even higher hardness levels, making it more resistant to wear and tear.

AMS 5763 Heat Treatment

AMS 5763 bar can be heat treated to improve its mechanical and physical properties. The most common heat treatment method for this material is solution annealing, which involves heating it to a specific temperature and holding it there for a certain amount of time. This process helps to remove any residual stresses and strengthens the material. After solution annealing, the material can be heat-treated through quenching and tempering to achieve the higher hardness and strength values.


In conclusion, AMS 5763 material is austenitic steel widely used in high-temperature applications. This material has excellent resistance to oxidation and corrosion, high hardness values, and exceptional mechanical properties. AMS 5763 is used primarily in the aerospace and power generation industries and can withstand exposure to harsh environments and chemicals. If you’re looking for a material that can withstand high temperatures and stress, consider AMS 5763 for your next project.

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