P20 Mould Steel
P20H Pre-hardened Plastic Mold Steel – Stable Hardness & Excellent Machinability for General Plastic Molds
P20H is a widely used pre-hardened plastic mold steel known for its stable hardness, excellent machinability, and reliable toughness.
With optimized alloy composition and uniform pre-hardening treatment, P20 mould steel provides consistent performance for medium-sized plastic injection molds and general-purpose tooling applications.
It is an ideal material for mold makers seeking cost-effective, stable, and easy-to-process mold steel.
Product Parameters (Specification)
|
Property |
Description |
|
Material Type |
Pre-hardened plastic mold steel |
|
Hardness |
HRC 29–34 |
|
Microstructure |
Tempered martensite |
|
Surface Condition |
Polishing & etching capable |
|
Heat Treatment |
Supplied pre-hardened; nitriding optional |
|
Application |
General injection molds, appliance molds, consumer product molds |
Product Features & Applications
Stable Pre-hardened Hardness (HRC 30–34)
Ensures balanced wear resistance and machinability for general mold applications.
01
Excellent Machinability
Supports high-speed CNC cutting, drilling, EDM, and shaping with minimal tool wear.
02
Good Polishing & Etching Performance
Suitable for standard gloss surfaces, textures, and functional plastic components.
03
Reliable Toughness & Structural Uniformity
Reduces deformation or cracking risks during deep cavity machining.
04
Versatile Applications
Commonly used for home appliance molds, small-to-medium injection molds, consumer electronic housings, and multi-cavity molds.
05
Product Details
P20 mould steel is refined through vacuum degassing, controlled alloying, and homogenized pre-hardening, ensuring a stable and clean internal microstructure.
Its moderate hardness and toughness make P20H a reliable choice for general mold manufacturing, balancing machining efficiency and mold durability.
Because of its consistent hardness distribution and easy processing characteristics, P20H is widely preferred for mold projects requiring fast delivery, easy machining, and stable quality.

Product Qualification
- Manufactured under ISO 9001:2015 certified process controls
- 100% ultrasonic tested to ensure internal integrity
- Hardness and microstructure verified before shipment
- International equivalents: AISI P20 / DIN 1.2311
FAQ
Hot Tags: p20 mould steel, China p20 mould steel manufacturers, suppliers, factory, 8418 Steel, DAC55 Steel, DIN 1 2344, P20 Mould Steel, plastic mould steel, Pre Hardened Mold Steel
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