ThePipingMart Blog Grades H24 Tool Steel (UNS T20824) – Composition, Properties and Uses

H24 Tool Steel (UNS T20824) – Composition, Properties and Uses

Tool Steel H24

Tool Steel H24 is a type of high-speed steel that is specially designed for use in cutting tools. UNS T20824 is known for its exceptional wear and heat resistance, as well as its high-temperature strength and corrosion resistance. This makes it ideal for many applications, from cutting tools to machine parts and aerospace components. Let’s take a look at the many uses of H24 Tool Steel and how it can benefit you.

H24 Tool Steel Composition

Element Content (%)
C 0.42-0.53
Mn 0.15-0.40
Si 0.15-0.40
Cr 2.50-3.50
Ni 0.3
W 14.00-16.00
V 0.40-0.60
Cu 0.25
P 0.03
S 0.03

H24 Tool Steel Physical Properties

Properties Conditions
T (°C) Treatment
Density 7.7-8.03 x 1000 kg/m3 25

H24 Tool Steel Mechanical Properties

Properties Conditions
T (°C) Treatment
Poisson’s ratio 0.27-0.30 25
Elastic modulus 27557-30458 ksi 25

H24 Tool Steel Equivalent

  • ASTM A681
  • FED QQ-T-570
  • UNS T20824

H24 Tool Steel Uses

Tool steel H24 is a versatile material often used in the production of industrial tools. It is known for its superior wear resistance and hardness, which makes it ideal for components that require both durability and strength. In particular, tool steel H24 can be employed to create hand tools, power tools, punches, taps, cutters, saw blades and drill bits. Its great strength also allows it to be used for moulds and dies as well as in hard-surfaced fabrication such as engraving or stamping. Because of its exceptional performance qualities, all kinds of metal craftsmen find it invaluable when creating items out of metal that must endure under tough conditions.

Heat Resistance

Tool Steel H24 resists heat better than other tool steels due to its special composition, which allows it to maintain its hardness even at higher temperatures. This makes it perfect for applications like machining and drilling, where the material will be subjected to repeated heating cycles. It also makes it great for aerospace components, where exposure to extreme temperatures may occur during flight or launch operations.

Corrosion Resistance

Tool Steel H24 has excellent corrosion resistance thanks to its special alloying elements such as chromium, molybdenum, tungsten, and vanadium. This means that even when exposed to harsh chemicals or environments, it won’t corrode easily and will maintain its strength and integrity over time.

Heat Treatment

Tool Steel H24 can be heat treated in order to increase its hardness and improve its wear resistance. This process involves slowly raising the temperature of the material until it reaches a predetermined point before quickly cooling it down again—a process known as quenching. This helps ensure that your tool steel will remain tough enough for whatever application you need it for a while, still being able to resist wear over time.


Thanks to its excellent corrosion resistance, machining with Tool Steel H24 is relatively easy compared to other types of tool steel. Its combination of hardness and toughness also makes it well-suited for operations like turning and milling, where precision is key. Plus, since Tool Steel H24 can withstand high temperatures without losing strength or becoming brittle, there’s less risk of damaging your equipment during long-term machining operations.


Tool Steel H24 is an incredibly versatile material that offers excellent wear resistance, heat resistance, corrosion resistance, and machinability—allowing you to get the most out of your projects without having to worry about damaging your equipment or materials in the process. From aerospace components to cutting tools and machine parts—Tool Steel H24 has a wide range of uses in many different industries! With these advantages in mind, now is the perfect time to consider investing in this unique tool steel variant!

Related Post

H24 Tool Steel (UNS T20824) – Composition, Properties and Uses

by Heer Vohera time to read: 2 min