P20+Ni STEEL

P20+Ni steel is a versatile tool steel that combines strength and durability, making it ideal for high-performance applications in the tooling industry. Its pre-hardened state allows for ease of machining and fabrication, while the nickel addition enhances toughness and resistance to wear.

Material Overview:

- Type: Tool Steel

- Standard: ASTM A681

- Classification: Pre-hardened tool steel

Chemical Composition:

- Carbon (C):0.28 - 0.40%

- Chromium (Cr): 1.80 - 2.30%

- Nickel (Ni): 1.0 - 1.5%

- Manganese (Mn): 0.60 - 1.0%

- Silicon (Si): 0.80 - 1.2%

- Molybdenum (Mo): 0.15 - 0.30%

- Vanadium (V): 0.05 - 0.15%

Mechanical Properties:

- Hardness (HRC): Typically around 28 - 32 HRC (pre-hardened)

- Tensile Strength: Approx. 1,100 - 1,300 MPa

- Yield Strength: Approx. 800 - 1,000 MPa

- Elongation: 10 - 15%

Physical Properties:

- Density: Approximately 7.85 g/cm³

- Thermal Conductivity: About 25 W/m·K

- Modulus of Elasticity: Approximately 200 GPa

Applications:

- P20+Ni is commonly used for:

  - Injection molds

  - Die-casting molds

  - Compression molds

  - General tooling applications

Heat Treatment:

- P20+Ni is usually supplied in a pre-hardened condition. Further heat treatment can be performed to achieve desired hardness and toughness depending on the application.

Machinability:

- Good machinability; can be machined using standard tools. It is recommended to use cutting fluids to improve performance.

Welding:

- Not typically recommended for welding due to potential cracking; if necessary, use appropriate filler materials and preheat methods.

Key Advantages:

- Good wear resistance

- Excellent toughness and stability during machining

- Easy to polish for high-quality surface finishes