ThePipingMart Blog Grades T2 Tool Steel (UNS T12002) – Composition, Properties, and Uses

T2 Tool Steel (UNS T12002) – Composition, Properties, and Uses

Tool Steel T2

Tool steel T2 is a widely used, versatile material with an impressive list of properties. It is widely used in manufacturing due to its excellent machinability and corrosion resistance. In this blog, we will take a closer look at the chemical, physical and mechanical properties of tool steel T2, as well as how it’s used in the manufacturing industry and its welding and heat treatment processes.

What Forms is T2 Tool Steel Available at Piping Mart?

  • Bars
  • Bolts
  • Pipes
  • Screw
  • Tubing
  • Valves
  • Washers
  • Flanges
  • Fasteners
  • Electrodes
  • Stud Bolts
  • Sheet Plates

T2 Tool Steel Composition

Steel T2 is composed of 0.85-0.95% carbon, 0.20-0.50% manganese, 0.70-1.00% chromium, 0.10-0.30% silicon, 0.15-0.25% molybdenum and less than 0.03% sulfur and phosphorus respectively. It also contains trace elements such as nickel and cobalt, which further improve its performance when exposed to various temperatures or pressures during welding or heat treatment processes.

Element Content (%)
Iron, Fe 91.55
Chromium, Cr 5.25
Molybdenum, Mo 1.1
Carbon, C 1
Manganese, Mn 0.85
Vanadium, V 0.25

T2 Tool Steel Chemical Properties

The high carbon content in tool steel T2 gives it excellent wear resistance while providing good toughness and strength at elevated temperatures. The other alloying elements also contribute to its hardness which allows it to perform better under heavy use conditions. Additionally, the chromium content helps increase corrosion resistance making it a great choice for industrial applications where rust prevention is important.

T2 Tool Steel Mechanical Properties

Steel T2 Tool has a good tensile strength (up to 1120 MPa), yield strength (up to 940 MPa), elongation (up to 14%), low elastic modulus (around 140 Gpa), and good thermal conductivity (around 35 W/mK). These properties make it suitable for applications where high-temperature operation is required, such as hot forging or die-casting tools. Its good machinability also makes it ideal for the production of complex parts, such as injection molds or dies, where intricate shapes can be produced quickly with minimal effort.

Properties Metric Imperial
Modulus of elasticity 207 GPa 30000 ksi
Hardness, Rockwell C 60-62 60-62
Hardness, Brinell 197-241 197-241
Charpy impact 53 J 39.1

T2 Tool Steel Physical Properties

UNS T12002 is a type of high-speed tungsten steel alloy containing molybdenum and cobalt. It is one of the toughest steels available from both hardness and wears resistance perspectives. It has good tensile strength and can be further strengthened by heat treatment processes like normalizing and quench hardening. Other physical properties of T2 tool steel include high surface finish, good weldability, excellent machinability, fatigue resistance, great dimension control when forging, and excellent bearing qualities when used in bearing applications. All these features give this alloy an impressive range of performance characteristics for a wide array of tools that require superior mechanical properties.

Properties Metric Imperial
Density 7.86 g/cm3 0.284 lb/in3

T2 Tool Steel Uses

Tool steel T2 is a versatile, economical material that has a variety of uses. It can be hardened to create machine components with durable edges, as well as cold rolled to provide strength and uniformity. T2 tool steel is also known due to its excellent wear resistance, even when cutting hard alloys. The material works exceptionally well in high-temperature applications due to its exceptional heat resistance and low thermal expansion properties. Due to these advantages it has become the go-to choice for many industries such as aerospace, medical, automotive and electronics. In addition, tool steel T2 is relatively easy to machine and weld compared to other metals.

  • T2 tool steel is an air-hardening, high-carbon chromium alloy.
  • It was developed originally as a shock-resisting steel for use in tool and die applications.
  • The high carbon content and chromium give it good wear resistance, while the tungsten and vanadium give it good toughness and hardenability.
  • The addition of molybdenum gives it better corrosion resistance than other similar steels.
  • T2 tool steel can be used for a variety of applications, including cutting tools, punches, dies, and shear blades.
  • It is also commonly used in cold working applications such as cold heading and cold forming.
  • T2 tool steel is available in a variety of forms, including bar, plate, sheet, and wire.
  • It is typically supplied in the annealed condition and can be heat treated to achieve a variety of desired properties.
  • T2 tool steel is typically used in applications where a combination of wear resistance and toughness are required.
  • Some common industries that use T2 tool steel include automotive, aerospace, and construction

T2 Tool Steel Equivalent

USA Germany China Japan France England Italy Poland Czechia Austria Sweden Spain
T2/UNS T12002/A600  BT2

T2 Tool Steel Specifications

ASTM/AISI T2 high speed steel is a Tungsten High Speed Steel grade Tool Steel in specification of ASTM A600. ASTM A600 standard covers tungsten-type and molybdenum-type high-speed steels used primarily in the fabrication of tools. There are seven types of tungsten high-speed tool steels designated T1, T2, T4, T5, T6, T8 and T15 etc.

T2 Tool Steel Corrosion Resistance

T12002 is a popular choice among manufacturers because of its superior corrosion resistance, making it ideal for creating a range of industrial tools. The structure of T2 tool steel, which has high carbon content and large amounts of tungsten and cobalt, provides this type of steel with an outstanding resistance to corrosion. This makes it highly durable in the harshest environments. Furthermore, its uniform hardness and wear-resistant properties make it an ideal material for cutting tools that can be used repeatedly without causing significant damage or wearing out quickly. Thanks to its corrosion resistance, manufacturers can trust that this tool steel will remain reliable throughout years of use.

T2 Tool Steel Welding

steel T2 Material welding can be a tricky process that requires a high level of precision and skill. Without the appropriate precautions, it can result in cracked or weak welds. As such, it is important to understand the properties of both the tool steel and the welding process so as to create strong and durable weldments. Knowing how different shielding gas mixtures affect filler metal selection is key to effective T2 welding, ensuring that the tool steel’s desired mechanical properties are maintained while avoiding rust formation and contamination of the finished product. Furthermore, proper joint preparation techniques must be employed prior to welding, and post-weld heat treatments should also be carefully considered after completion–both essential steps in guaranteeing quality welds.

T2 Tool Steel Heat Resistance

Tool steel’s ability to withstand high temperatures is one of its strengths, and T2 steel is no exception. It’s capable of standing up to heat as its melting point is twice that of mild steel, making it ideal for applications requiring heat resistance. In addition, due to its high ignition temperature, it is not easily flammable. It also has great tensile strength with excellent wear resistance, meaning it can be used in extreme environmental conditions while remaining reliable. All in all, tool steel T2 is a great choice for anyone looking for a steel alloy with superb heat resistance and other advantageous features.

Tool Steel T2  Heat Treatment

Tool Steel T2 is renowned for its incredible versatility, as it can be heat treated to achieve a variety of strengths and hardness levels. With a precise balance of carbon and other alloying elements, Tool Steel T2 expresses superior toughness when hardened and tempered – an ideal choice for various applications such as stamping dies, punches, forming tools, and cutting tools. Properly heat-treating Tool Steel T2 yields an entire range of desirable physical and mechanical characteristics on the material surface that make it resistant to wear and abrasion from use. Whenever needed, users can rest assured that heat-treating Tool Steel T2 will result in increased tool life and performance.

Tool Steel T2  Machining

Machining T2 tool steel can be a challenging process, and it is important to have the right tools and equipment in order to successfully produce parts. It is a medium-high carbon steel featuring good wear resistance and toughness yet still possessing the ability to be machined. However, due to its hard nature and high tempering temperature, it may require cutting tools that are specialized for this application. For best results, using sharp tools with sufficient coolant helps ensure that parts can be crafted with precision without sacrificing durability. By selecting the ideal combination of cutting parameters, including spindle speed and feed rate, it is possible to keep both cost and turnaround time low while achieving excellent machining accuracy.


In conclusion, Tool Steel T2 is an extremely versatile material that can be used for a variety of applications due to its exceptional physical, mechanical, and chemical properties. Thanks to its excellent machinability, corrosion resistance, and heat resistance, it has become one of the most popular materials in the industry today for producing complex parts with precision, accuracy quickly, and easily without compromising on quality or durability. If you are looking for a material that can withstand extreme temperatures while still being able to produce accurate parts with high-quality results, then Tool Steel T2 may be just what you need!

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