Metal Material

Aluminum

Aluminum alloys are premium lightweight materials for injection molds, offering superior thermal conductivity (3x faster than steel) and machining efficiency (40% less CNC time). Aviation-grade alloys like 7075-T6 balance hardness and corrosion resistance, ideal for quick mold changes and low-volume precision molding, with mold life exceeding 500,000 cycles.

Copper

Copper alloys are the preferred choice for high-demand injection molds due to their exceptional thermal conductivity (5-8x faster than steel) and even heat distribution. Beryllium copper (e.g., C17200) delivers ultra-high thermal conductivity with HRC38-42 hardness, ideal for rapid-cycle molding of precision optical components and thin-walled products, reducing cooling time by over 30%.

Carbon Steel

Carbon steel offers a cost-effective solution for injection mold manufacturing, featuring excellent mechanical strength and wear resistance (HRC 50-62). Premium mold steels like P20 and S136 can achieve extended service life (1 million+ cycles) after heat treatment, making them ideal for high-volume production and precision plastic molding – the perfect balance of cost and performance.

Special Alloy

Special alloys (e.g., H13, NAK80) are premium materials for high-end injection molds, offering exceptional thermal stability (withstanding up to 600°C) and fatigue resistance. With optimized composition and heat treatment, these alloys deliver ultra-long mold life (2 million+ cycles), making them the ideal choice for precision engineering plastics, high-temperature resins, and micro-structured components under demanding molding conditions.

Stainless Steel

Stainless steel (e.g., 420, SUS304) provides optimal corrosion resistance for precision injection molds, featuring superb polishability (mirror finish Ra0.05μm achievable) and dimensional stability. Particularly suitable for medical devices and food packaging applications requiring high cleanliness standards, it maintains long-term performance in humid/corrosive environments with mold life exceeding 800,000 cycles.

Materials Certification

We are always committed to providing our customers with a high-quality customized parts service and pay special attention to the material selection of each part. To ensure customer confidence in the materials used and the reliability of product performance, we provide detailed material certificates upon completion of each order, demonstrating that the materials used meet industry standards and customer-specific requirements.

This not only helps the customer to have a more in-depth understanding of the transparency of the production process but also ensures that the parts produced meet their expected standards of strength, durability, and fitness for purpose.

FAQ Of Metal Material

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