ThePipingMart Blog Grades P2 Tool Steel (UNS T51602) – Composition, Properties and Uses

P2 Tool Steel (UNS T51602) – Composition, Properties and Uses

Tool Steel P2

Tool Steel P2 is a premium grade of steel that is used in many industrial and commercial applications. UNS T51602 is known for its strength, corrosion resistance, heat resistance, and machinability. P2 Tool Steel, also known as UNS T51602 and SAE-AISI P2 steel, is a versatile metal that has become increasingly popular in the manufacturing industry due to its unique composition and impressive properties. Made up of carbon, chromium, molybdenum, and tungsten, P2 Tool Steel boasts excellent toughness, wear resistance, and hot hardness. This steel is commonly used in applications such as cutting tools, dies, and punches and is perfect for tasks that require high degrees of precision and strength. Its combination of hardness, strength, and toughness allows it to withstand extreme temperatures and heavy loads – making it an ideal choice for applications where durability is key. Overall, P2 Tool Steel is a top choice for manufacturers looking for a reliable and adaptable metal for their projects. In this article, we will explore the various uses of P2 Tool Steel and how it can be treated and machined for optimum performance.

What Forms of P2 Tool Steel is Available at Piping Mart?

  • Nut
  • Bar
  • Bolt
  • Pipe
  • Screw
  • Tubing
  • Valves
  • Washers
  • Flanges
  • Fasteners
  • Electrodes
  • Stud Bolts
  • Sheet Plates
  • Pipe Fittings
  • Forged Fitting
  • Instrumentation Fittings

P2 Tool Steel Composition

Element Content (%)
C 0.10
Mn 0.10-0.40
Si 0.10-0.40
Cr 1.25-1.75
Ni 0.10-0.50
Mo 0.15-0.40
Cu 0.25
P 0.03
S 0.03

P2 Tool Steel Physical Properties

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

P2 Tool Steel Mechanical Properties

Properties Metric Imperial
Hardness, Rockwell C 58.0-64.0 58.0-64.0
Poisson’s ratio 0.27-0.30 0.27-0.30
Elastic modulus 190-210 GPa 27557-30457 ksi

P2 Tool Steel Thermal Properties

Properties Conditions
T (°C) Treatment
Thermal expansion 13.7 x 10-6/ºC 20-425

P2 Tool Steel Equivalents

  • ASTM A681
  • UNS T51602

P2 Tool Steel Uses

Tool Steel P2 is used in many different industries due to its exceptional strength and durability. It is commonly used in medical instruments, automotive parts, aerospace components, and precision tools. Additionally, Tool Steel P2 has become increasingly popular in the construction industry due to its ability to withstand heavy loads without warping or bending over time.

P2 Tool Steel Uses in Industries

Automotive Industry

P2 tool steel is commonly used in the automotive industry for its high strength and wear resistance. It is often used to make various components, such as gears, shafts, and bearings, which are subjected to high stress and friction. P2 tool steel’s ability to withstand these conditions makes it an ideal choice for use in engines, transmissions, and other critical parts of vehicles.

Aerospace Industry

The aerospace industry also utilizes P2 tool steel for its durability and strength. This type of steel is commonly used to produce aircraft engine components, landing gear, and other critical parts that require high strength and wear resistance. Its ability to withstand extreme temperatures makes it suitable for jet engines.

Manufacturing Industry

In manufacturing, P2 tool steel is often used to produce cutting tools such as drills, taps, and milling cutters. Its high hardness allows these tools to cut through tough materials like metal and plastic easily. Additionally, the wear resistance of P2 tool steel ensures that these tools can maintain their sharpness even after prolonged use.

Construction Industry

P2 tool steel is also utilized in the construction industry for its strength and toughness. It is commonly used in heavy machinery parts such as bulldozer blades, excavator teeth, and crane hooks because it can withstand heavy loads without deforming or breaking. Its resistance to wear also makes it suitable for use in construction equipment that operates on rough surfaces.

Oil & Gas Industry

The oil and gas industry relies on P2 tool steel for its strength and corrosion resistance properties. This type of steel is often used in drilling equipment such as drill bits, pipes, and valves exposed to harsh environments deep underground or underwater. Its durability ensures that these components can withstand the extreme conditions in the oil and gas industry.

P2 Tool Steel Corrosion Resistance

Tool Steel P2 is highly resistant to corrosion which makes it ideal for use in water-based applications. This type of steel does not corrode easily, even when exposed to harsh environments such as saltwater or acidic liquids. The material’s low carbon content also helps prevent rust from forming on its surface.

P2 Tool Steel Heat Resistance

Tool Steel P2 also offers excellent heat resistance, making it suitable for use in high-temperature applications such as welding or forging operations. The material’s high melting point ensures that it retains its shape even after being subjected to extreme temperatures, which makes it an ideal choice for applications requiring long-term performance under high-stress conditions.

P2 Tool Steel Heat Treatment

The properties of Tool Steel P2 can be further enhanced through heat treatment processes such as annealing or quenching, which can increase the material’s hardness while maintaining its ductility at the same time. Heat treatment also increases the steel’s fatigue strength, making it well-suited for use in components subject to constant vibration or impact during operation.

P2 Tool Steel Machining

The machinability of Tool Steel P2 is good compared to other types of steel, but care must be taken due to its hardness and brittleness when cutting or drilling into the material. As a result, carbide-tipped tools are recommended when working with this type of steel as they provide superior wear resistance over standard metal cutting tools. Furthermore, the coolant should always be used when machining Tool Steel P2 as this helps reduce friction between the tooling and workpiece, resulting in cleaner cuts with less tool wear over time.


To sum up, Tool Steel P2 is an incredibly durable grade of steel that can be used for a wide range of applications due to its excellent strength, corrosion resistance, heat resistance, and machinability. Whether you’re looking for a metal component that needs to withstand extreme temperatures or one that won’t corrode easily over time, then Tool Steel P2 may just be what you’re looking for! For more information on this versatile material, please feel free to contact our team at Metric Marketing today! We look forward to hearing from you soon!

Related Post