P20 1.2312

P20 (1.2312) is another grade of mold steel commonly used in the production of plastic injection molds and extrusion dies. Similar to P20 (1.2311), it offers a good balance of toughness, wear resistance, and machinability, making it suitable for a wide range of mold-making applications. Here's a description of P20 (1.2312) mold steel:

• Composition: P20 (1.2312) typically contains approximately 0.35-0.45% carbon, 1.8-2.2% chromium, 0.3-0.6% manganese, 0.15-0.25% molybdenum, and small amounts of silicon and sulfur. This composition provides P20 (1.2312) with its desirable properties for mold-making applications.
• Toughness: P20 (1.2312) exhibits good toughness, allowing it to withstand the mechanical stresses and impact loads encountered during the molding process. This toughness helps prevent cracking and deformation of the molds, ensuring prolonged tool life.

• Wear Resistance: P20 (1.2312) offers good wear resistance, particularly in applications involving abrasive wear from filled or reinforced plastics. Its ability to maintain its cutting edge and resist wear contributes to longer tool life and reduced maintenance costs.
• Machinability: P20 (1.2312) has good machinability, allowing for easy machining into complex shapes and forms using conventional machining techniques such as milling, drilling, turning, and grinding. Its machinability facilitates the production of intricate mold components with tight tolerances.
• Surface Finish: P20 (1.2312) molds can achieve high-quality surface finishes on molded parts, making it suitable for applications where aesthetics and surface texture are critical.
• Corrosion Resistance: Similar to P20 (1.2311), P20 (1.2312) offers decent corrosion resistance but may require surface treatments or coatings to enhance its resistance to corrosion and
• Heat Treatment: P20 (1.2312) can be hardened through quenching and tempering processes to achieve the desired hardness and mechanical properties. The specific heat treatment process may vary depending on the application requirements and desired mold properties.
• Dimensional Stability: P20 (1.2312) exhibits good dimensional stability during heat treatment and prolonged use, minimizing distortion and warping of the molds. This property is essential for producing precision molded parts with consistent dimensions and tight tolerances.

In summary, P20 (1.2312) mold steel is valued for its combination of toughness, wear resistance, machinability, and dimensional stability, making it a preferred choice for various mold-making applications in the plastics industry.