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What Is P20 Tool Steel?

P20 tool steel is a versatile, low-alloy, pre-hardened tool steel that is commonly used in the manufacturing of plastic injection molds and die casting dies. The "P" in P20 stands for "Plastic", indicating that the steel is specifically designed for use in plastic injection molding applications.

P20 tool steel is known for its excellent toughness, wear resistance, and machinability. It is also known for its ability to retain its hardness even at elevated temperatures, making it an ideal material for use in high-temperature applications.

AISI P20 DIN 1.2311 / UNS T51620
FusionTG Color Code N/A
Offered As Availability
Sheet No
Plate No
Cut Bar No
Blocks Yes
Rounds Yes
Forging Yes
Drill Rod No
Flat Ground Stock No
Typical Chemical Composition Minimum - Maximum Value
Carbon (C) 0.28-0.40%
Chromium (Cr) 1.40-2.00%
Manganese (Mn) 0.20-0.60%
Molybdenum (Mo) 0.25-0.50%%
Silicon (Si) 0.20-0.80%
Phosphorus (P) ≤0.030%
Sulfur (S) ≤0.030%
Nickel (Ni) ≤0.30%
Maximum Rockwell C Hardness Obtainable 60 HRC
Supplied In Annealed Condition 229 BHN

P20 tool steel is a versatile and widely used material that finds its applications in various industries, including:

  • Plastic injection molds: P20 tool steel is commonly used in the manufacturing of plastic injection molds due to its excellent toughness, wear resistance, and ability to maintain its hardness at elevated temperatures.
  • Die casting dies: P20 tool steel is also used in the production of die casting dies for the same reasons as in plastic injection molds.
  • Extrusion dies: P20 tool steel can be used in the production of extrusion dies due to its high toughness and wear resistance.
  • Jigs and fixtures: P20 tool steel is also used in the manufacturing of jigs and fixtures for its excellent machinability and dimensional stability.
  • Structural components: P20 tool steel is also used in the manufacturing of various structural components, such as gears, shafts, and tool holders, due to its good mechanical properties and ease of processing.

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