- AISI P20+Ni
Standards : X153CrMoV12
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.35–0.45 |
| Manganese (Mn) | 1.30–1.60 |
| Silicon (Si) | 0.20–0.40 |
| Chromium (Cr) | 1.80–2.10 |
| Molybdenum (Mo) | 0.15–0.25 |
| Nickel (Ni) | 0.90–1.20 |
Grade Brief
1.2738 is a plastic mold tool steel, equivalent to AISI P20+Ni, designed primarily for plastic injection and die casting molds, especially for large mold sections. Alloying elements such as Nickel, Chromium, and Molybdenum provide a balance of toughness, strength, wear resistance, and polishability.
Grade 1.2738 (P20+Ni) is a versatile plastic mold steel, optimized for large mold applications, combining strength, toughness, machinability, and polishability, making it highly suitable for automotive and appliance industry mold tooling.
Key Features
- Pre-hardened condition: 280 – 320 HB (~32–36 HRC)
- Supplied in quenched and tempered state (ready-to-use)
- Good machinability and polishability
- Suitable for texturing and EDM
- Fair weldability (requires preheating and tempering after welding)
Mode of Supply
Kuber Multi Metals is the largest stockiest and supplier of P20+Ni Steel in flat, square and round bar. We provide steel in all sizes as your requirements. P20+Ni die steel is available in flat, square and round shape. Consult our team who will assist you for P20+Ni steel query.
Steel Properties
P20 / DIN 2311 /AISI P20 is the Pre Hardened Plastic mould steel hardness distributed evenly in large cross sections that have excellent weldability with least hardness elevation, good mirror polishability and less streak texture making finishing easier. Size Section availability upto 255mm thickness. Supply hardness is 240-280 BHN.
| Condition | Hardness (HB) | Hardness (HRC) | Tensile Strength (MPa) |
|---|---|---|---|
| Pre-hardened | 280 – 320 | 32 – 36 | ~1000 – 1200 |
Physical Properties
| Temp. Range (°C) | 20–100 | 20–150 | 20–200 | 20–250 | 20–300 | 20–350 | 20–400 | 20–450 | 20–500 |
|---|---|---|---|---|---|---|---|---|---|
| Expansion Coefficient | 12.7 | 12.8 | 13.1 | 13.3 | 13.6 | 13.7 | 13.8 | 14.0 | 14.3 |
| Temperature (°C) | 23 | 150 | 300 | 350 | 400 | 500 |
|---|---|---|---|---|---|---|
| Conductivity | 32.0 | 32.8 | 31.4 | 30.2 | 29.6 | 27.5 |
Heat Treatment & Processes
Heat Treatment
- As supplied: Pre-hardened, quenched & tempered (ready for machining & use).
- If re-hardened:
- Austenitizing: ~840–870 °C
- Quenching: Oil or polymer bath
- Tempering: 550–650 °C (to required hardness ~32–36 HRC)
Machinability & Polishing
- Excellent machinability in the pre-hardened state
- Good for high-quality surface finish (mirror polish)
- Suitable for engraving and EDM texturing
Weldability
- Fair, not recommended for frequent welding
- Requires:
- Preheating to ~250–300 °C
- Post-weld tempering at 550–650 °C
- Use a compatible filler material
Application
Plastic injection molds (large sections), Automotive mold components (bumpers, dashboards, housings), Home appliance mold bases, Die casting dies for zinc & related alloys, High-grade mold bases requiring polish/mirror finish
Conclusion
Grade 1.2738 (AISI P20+Ni) plastic mold steel. This is a premium, pre-hardened tool steel type developed to handle the large and complicated molding applications. It is a favorite material in injection molds, die casting dies, and excellent machinability in the automotive, appliance, and industrial industries because of its combination of strength, toughness, wear resistance, and excellent machinability. Having a great polishability and compatibility with EDM and texturing processes, 1.2738 offers better surface finishing as well as service life, so it is one of the most dependable steels in modern mold-making.
Addition to other Grades
HCHCR-D2 Steel , HCHCR-D3 Steel , P20+Ni Steel , P20 Steel , P20 HH , Stavax ESR , DB6 Steel , H13 Steel, H11 Steel, H21 Steel, H10 Steel, H12 Steel, M2 Steel, M35 Steel, M42 Steel, T1 Steel, C 45, MS Steel, En 31, En 24 , En 353 , En 19 , En 8 , En 8D , En 9 , En 47 , 20 Mncrs , SAE8620 , DIN 2379 Steel, DIN 2080 Steel, DIN 2738 Steel, DIN 2311 Steel, DIN 2714 Steel, DIN 2344 Steel , DIN 2343 Steel, DIN 2581 Steel, DIN 2365 Steel, DIN 2606 Steel, DIN 3343 Steel, DIN 3243 Steel, DIN 3247 Steel, DIN 3355 Steel , AISI D2 Steel, AISI D3 Steel, AISI P20+Ni Steel, AISI P20 Steel, AISI L6 Steel, AISI H13 Steel, AISI H11 Steel, AISI H21 Steel, AISI H10 Steel, AISI H12 Steel, AISI M2 Steel , AISI M35 Steel, AISI M42 Steel , AISI T1 Steel
