ThePipingMart Blog Grades AMS 5848 Nitronic Alloy – Composition, Properties and Uses

AMS 5848 Nitronic Alloy – Composition, Properties and Uses

AMS 5848

AMS 5848 is a high-performance alloy that has been around for a while, but only a few people know what it is, let alone its properties and uses. This blog aims to provide all the necessary info you need to know about AMS 5848, starting with what it is and its composition.

What is AMS 5848?

AMS (also known as Nitronic Alloy 60) is an acronym that stands for Aerospace Material Specification. AMS 5848 is a high-strength nickel alloy often used in high-temperature and high-corrosive environments such as gas turbines, jet engines, and power generation plants. It is manufactured from nickel, chromium, and iron, but the exact composition depends on the manufacturer. AMS 5848 is usually produced using vacuum induction melting or arc re-melting techniques.

What Form is AMS 5848 Available at Piping Mart?

  • Bars
  • Nuts
  • Bolts
  • Screws
  • Washers
  • Stud Bolts
  • Fasteners

AMS 5848 Composition

AMS 5848 has a unique composition that gives it excellent corrosion and oxidation resistance, high strength, and great fatigue resistance. Its composition typically includes; nickel (63%), chromium (20%), molybdenum (6.5%), iron (less than 5%), tungsten, and other minor elements such as titanium and aluminium to enhance its properties. Combining these elements results in a material that can withstand extreme conditions.

Element Content (%)
Chromium, Cr 20.5-23.5
Nickel, Ni 11.5-13.5
Manganese, Mn 4-6
Molybdenum, Mo 1.5-3
Silicon, Si 1
Nitrogen, N 0.2-0.4
Niobium, Nb 0.1-0.3
Vanadium, V 0.1-0.3
Carbon, C 0.06
Sulfur, S 0.03
Iron, Fe Balance

AMS 5848 Physical Properties

AMS 5848 has several physical properties that differentiate it from other alloys. It has a density of approximately 8.36 g/cm³, a thermal conductivity of 11.1 W/m°K, a melting point of about 1350°C, and excellent thermal expansion characteristics. It is also non-magnetic, with good electrical conductivity and a low coefficient of thermal expansion.

AMS 5848 Mechanical Properties

Regarding mechanical properties, AMS 5848 has a tensile strength of about 180 ksi and a yield strength of 145 ksi. Its fracture toughness is also impressive because it is not susceptible to stress corrosion cracking. AMS 5848 has good ductility and is easy to form, meaning it can be shaped into various components in different shapes and sizes.

Properties Metric Imperial
Tensile strength at break ≥ 689 MPa ≥ 100000 psi
Yield strength ≥ 379 MPa ≥ 55000 psi
Elongation at break ≥ 35% ≥ 35%

AMS 5848 Uses

Aerospace and automotive industries mostly use AMS 5848 because it can withstand high temperatures without losing its properties. It is an ideal material for jet engine and aircraft gas turbine components such as turbine blades, vanes, and combustion liners that operate at temperatures between 1300 and 1700 °Fahrenheit. The automotive industry, AMS 5848 is used in exhaust manifolds, catalytic converters, and turbochargers.

AMS 5848 Hardness and Heat Treatment

AMS 5848 has excellent hardness and can be further strengthened through heat treatment. The material can be cooled rapidly, which improves its strength and enhances its mechanical properties. The recommended heat treatment temperature for AMS 5848 is 2150 to 2250°F with a fast air or oil quench, which achieves a Rockwell C hardness of 35 to 43.


In conclusion, AMS 5848 is a high-performance alloy with unique properties such as excellent corrosion, oxidation, and fatigue resistance, as well as high strength and thermal expansion characteristics. This material is a must-have in industries that require components that can withstand harsh environments. With the right heat treatment process, AMS 5848 can achieve a Rockwell C hardness of 35 to 43, which makes it an ideal material for various applications in the aerospace and automotive industries.

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