ThePipingMart Blog Grades AMS 6260 Alloy Steel – Composition, Properties, and Uses

AMS 6260 Alloy Steel – Composition, Properties, and Uses

AMS 6260

SAE – AMS 6260 is a popular alloy widely used in various industries for its incredible mechanical and physical properties. This alloy is ideal for making critical components requiring high strength, wear resistance, and toughness. This blog post delves deep into AMS 6260, exploring its composition, mechanical properties, physical properties, heat treatment, and uses.

What is AMS 6260?

AMS 6260 (also known as SAE-AISI 9310 Alloy Steel) is a type of metal known for its exceptional strength and durability. It is low-alloy steel commonly used in applications requiring high wear and tear resistance, such as gears, shafts, and other parts subjected to high stress or heavy loads. What sets AMS6260 apart from other steels is its ability to withstand extreme temperatures without experiencing distortion or cracking. This makes it an ideal material for applications that involve high-speed machinery and other demanding environments. Whether you’re working in aerospace, automotive, or any other industry that demands quality and reliability, AMS6260 is a metal you can trust to deliver outstanding performance daily.

AMS 6260 Composition

AMS 6260 material belongs to the low-alloy steel family, which comprises alloys with less than 8% of alloying elements. This alloy has a specific chemical composition comprising Carbon, Chromium, Molybdenum, Nickel, and Vanadium. The percentage of each element varies, with Carbon ranging between 0.52% and 0.60%, Chromium between 0.80% and 1.15%, Molybdenum between 0.15% and 0.25%, Nickel between 1.80% and 2.50%, and vanadium between 0.03% and 0.08%.

Symbol Element Min % Max %
C Carbon 0.07% 0.13%
Mn Manganese 0.40% 0.70%
Si Silicon 0.15% 0.35%
P Phosphorus 0.015%
S Sulfur 0.015%
Cr Chromium 1.00% 1.40%
Ni Nickel 3.00% 3.50%
Mo Molybdenum 0.08% 0.15%
B Boron 0.001% (10 ppm)
Cu Copper 0.035%

AMS 6260 Physical Properties

AMS 6260 steel bar exhibits excellent physical properties, making it ideal for harsh environments. Some of the significant physical properties of AMS 6260 include high density, which ranges between 7.8 to 7.85g/cm^3, high electrical conductivity, and thermal conductivity. Additionally, this alloy is magnetic and has a specific heat capacity of 448j/Kg.K.

AMS 6260 Mechanical Properties

AMS 6260 plate has high mechanical strength, surpassing other steels in its category. This alloy has a tensile strength of 1035 MPa, yield strength of 860MPa and a modulus of elasticity of 200GPa. Furthermore, it exhibits good ductility and toughness, making it ideal for critical applications.

Mechanical Properties
Density Ultimate Tensile Strength Yield Tensile Strength
Imperial 0.284 lb/in3 132,000 psi 82,800 psi
Metric 7.86 g/cc 907 MPa 571 MPa

AMS 6260 Equivalents

  • AMS 6260G
  • AMS 6265C
  • AMS 6267A

AMS 6265 Specifications

  • E9310
  • AMS 6260
  • AMS 6265 (Vac Melt)
  • AMS 6267 (Vac Melt)
  • AMS 2300
  • AMS 2301
  • AMS 2304
  • MIL-S-7393 Comp 3
  • MIL-S-93030 Comp 3
  • ASTM A322
  • UNS G93106
  • HT-5042
  • EMS-56280
  • BPS-299-947-032AF

AMS 6260 Uses

AMS 6260 wire finds extensive use in various industries due to its unique properties. This alloy is ideal for making military components, such as helicopters, aircraft, and aerospace missiles, where high toughness, strength, and corrosion resistance are paramount. Additionally, it is an excellent choice for making industrial components that operate in harsh environments, such as engines, gears, and turbines.

AMS 6260 Hardness

The hardness of AMS 6260 plate varies depending on the heat treatment. Generally, the alloy has a Rockwell hardness scale of 31HRC when supplied in the annealed condition. However, it can attain a maximum hardness of 52 HRC when subjected to heat treatment.

AMS 6260Heat treatment

Heat treatment is a critical step in enhancing the properties of AMS 6260. Common heat treatments include quenching and tempering. In this process, the alloy is heated to a specific temperature above its critical point before being quenched in oil, which causes the alloy to cool rapidly. This results in a hard yet brittle material, which is tempered to improve softness, ductility, and toughness.


AMS 6260 material is an exceptional low-alloy steel with excellent mechanical and physical properties. Its unique properties make it an ideal component for high-stress applications such as aerospace and industrial sectors. Understanding the alloy’s composition, physical and mechanical properties, hardness, and heat treatment process are essential in ensuring the material meets the desired requirements for the intended application.

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