ThePipingMart Blog Grades AMS 6487 Tool Steel – Composition, Properties, and Uses

AMS 6487 Tool Steel – Composition, Properties, and Uses

AMS 6487

AMS6487 is a low-alloy steel commonly used in aerospace and other high-performance applications. This alloy offers a good combination of strength and toughness and has excellent resistance to fatigue and impact. This blog post will look closer at AMS 6487, exploring its composition, physical and mechanical properties, uses, hardness, and heat treatment.

What is AMS 6487?

AMS 6487 (also known as H-11 Tool Steel) metal is a highly specialized type of alloy steel that offers exceptional strength and durability. This material is known for its ability to withstand extreme pressure and temperatures, making it ideal for use in various industrial applications. Whether you want to build heavy-duty machinery, construct high-performance engines, or design advanced aerospace components, AMS6487 metal is the material for engineers and designers who demand the absolute best quality and performance. So if you are searching for a metal that delivers strength and reliability, look at AMS 6487.

AMS 6487 Composition

AMS6487 is a high-strength steel alloy widely used in the aerospace industry for structural applications. It has excellent toughness and fatigue resistance, making it an ideal material for aircraft components subjected to high stress and demanding conditions. AMS 6487 consists of chromium, nickel, and molybdenum, which work together to achieve the desired mechanical properties. In addition, careful control of the alloy’s microstructure during heat treatment is critical to achieving optimal performance. Engineers and materials scientists continuously refine the composition and processing of AMS6487 to meet the evolving requirements of the aerospace industry, ensuring that this steel alloy remains a cornerstone material for modern aviation.

Element Content (%)
Carbon, C 0.33-0.43
Manganese, Mn 0.20-0.50
Silicon, Si 0.80-1.20
Chromium, Cr 4.75-5.50
Nickel, Ni 0.3
Molybdenum, Mo 1.10-1.60
Vanadium, V 0.30-0.60
Copper, Cu 0.25
Phosphorous, P 0.03
Sulfur, S 0.03
Iron, Fe Balance

AMS 6487 Physical Properties

AMS 6487 is a type of steel alloy with remarkable physical properties that make it useful in different applications. One feature that makes it stand out is its high strength-to-weight ratio, which is crucial in the aerospace industry. It is also known for its excellent resistance to abrasion and wear, making it suitable for manufacturing gears, bearings, and other components that undergo high stress and friction. Additionally, the steel alloy has good machinability, which translates to ease and efficiency during fabrication. Although it is not a household name, AMS 6487 is an important material that contributes to the development of modern technology.

Properties Metric Imperial
Density 7.81 g/cm3 0.282 lb/in3
Melting point 1427°C 2600°F

AMS 6487 Mechanical Properties

Mechanical Properties AMS 6487 is an important topic for engineers and manufacturers. This set of standards determines the mechanical properties of high-strength, low-alloy (HSLA) steel bars and wire strands used in critical applications such as aerospace and defence. These properties include ultimate tensile strength, yield strength, elongation, and reduction of area, which are crucial in ensuring the safety and reliability of these materials. In addition, understanding the mechanical properties of AMS 6487 can aid in designing and selecting materials that can withstand harsh environments and extreme load conditions. With technological advances and the demand for stronger and more durable materials, knowledge of mechanical properties has become increasingly important in engineering.

Properties Metric Imperial
Hardness, Rockwell C (air cooled from 982°C, 45 mins) 52.5 52.5
Hardness, Rockwell C (air cooled from 1010°C, 45 mins) 56 56
Hardness, Rockwell C (air cooled from 1038°C, 45 mins) 57 57
Modulus of elasticity 207 GPa 30000 ksi
Modulus of elasticity (@538°C/1000°F) 159 GPa 23000 ksi
Modulus of elasticity (@204°C/400°F) 190 GPa 27500 ksi
Charpy impact (V-notch; air cooled from 1010°C;535°C temper temperature) 13.6 J 10.0 ft-lb
Charpy impact (V-notch; air cooled from 1010°C;650°C temper temperature) 27.1 J 20.0 ft-lb
Charpy impact (V-notch; air cooled from 1010°C;370°C temper temperature) 33.9 J 25.0 ft-lb
Machinability (1% carbon steel) 75.0 – 80.0% 75.0 – 80.0%
Poisson’s ratio 0.27-0.30 0.27-0.30

AMS 6487 Equivalents

AFNOR Z 38 CDV 5 AMS 6485 SAE J438
DIN 1.2343 AMS 6487 SAE J467
UNI KU AMS 6488 UNS T20811
B.S. BH 11 FED QQ-T-570 ASTM A579
AMS 6437 SAE J437 MIL S-47262

AMS 6487 Uses

AMS 6487 is primarily used in aerospace applications, including airframe components, landing gear, engine mounts, and structural parts. Its high strength and excellent fatigue and impact resistance make it an ideal material for use in high-stress and high-temperature environments.

AMS 6487 Hardness

AMS 6487 has a typical hardness of 269 HBW when cold-worked or 277 HBW when heat-treated to a hardness level of 58-62 HRC.

AMS 6487 Heat treatment

Depending on the application, AMS 6487 can be heat-treated to achieve a range of hardness levels. For example, a hardness level of 40-44 HRC can be achieved by quenching and tempering at 649-677°C, while a hardness level of 58-62 HRC can be achieved by tempering at 593-616°C.


In conclusion, AMS 6487 material is a low-alloy steel with excellent mechanical properties and is commonly used in aerospace and other high-performance applications. Its composition, physical and mechanical properties, uses, hardness and heat treatment contribute to its high-performance capabilities. As with all materials, proper selection, handling, and processing are critical to achieving optimal performance and safety. It is essential to consult with experts to ensure the proper use and handling of AMS 6487.

Related Post