H13 Steel Core Pins for Die Casting Molds - High Hardness 43-45HRC Precision Ground ±0.01mm

H13 Steel Core Pins are critical die casting mold components used to form internal holes, recesses, and complex internal geometries in metal cast parts. Installed inside the mold cavity, core pins create accurate internal features while maintaining dimensional stability during high-pressure die casting cycles.

Manufactured from premium H13 hot-work tool steel, these core pins are designed to withstand extreme temperatures, repeated thermal cycling, and high injection pressures commonly found in aluminum, zinc, and magnesium die casting processes.

With high hardness, excellent thermal fatigue resistance, and precision machining, H13 core pins are widely used in high-pressure die casting (HPDC) molds to ensure consistent part quality and extended mold service life.

Core pins are precision mold inserts used to form internal features such as holes, slots, threads, and internal channels in die-cast components. Because these pins are exposed to molten metal and rapid cooling cycles, they must possess excellent thermal stability, wear resistance, and toughness.

Our H13 steel core pins are manufactured using high-precision CNC machining combined with professional heat treatment to ensure reliable performance in demanding die casting environments.

Key product characteristics include:

• Manufactured from H13 hot-work tool steel
• Excellent resistance to thermal fatigue and heat cracking
• High hardness and wear resistance
• Precision ground surfaces for accurate mold fitting
• Custom shapes and dimensions available
• Designed for long service life in high-pressure die casting molds

These core pins help mold manufacturers maintain consistent cavity geometry and reduce downtime caused by component wear.

H13 steel core pins are primarily used in die casting mold systems to form internal features of metal cast products.

• Aluminum Die Casting Molds: Core pins create precise internal holes and structures in aluminum die-cast components.
• Zinc Die Casting Molds: Suitable for high-precision zinc die casting molds requiring dimensional accuracy and durability.
• Magnesium Die Casting Molds: Used in magnesium alloy die casting molds where thermal resistance and structural stability are essential.
• High-Pressure Die Casting Tooling (HPDC): Core pins are essential tooling components in HPDC molds for forming internal cavities and functional features.
• Replaceable Mold Core Systems: Designed as replaceable inserts to simplify mold maintenance and extend mold service life.

Our company specializes in the manufacturing of precision die casting mold components, using advanced machining equipment and strict quality control procedures.

Our manufacturing capabilities include:

• High-precision CNC turning and milling
• Wire EDM and sinker EDM machining
• Precision grinding and polishing
• Professional vacuum heat treatment
• Surface finishing and dimensional calibration
• Dimensional tolerance control up to ± 0.002 - ±0.005 mm

Every core pin is carefully inspected to ensure accurate dimensions, excellent surface quality, and stable performance in mold assemblies.

• Superior Heat Resistance: H13 hot-work tool steel provides excellent resistance to high temperatures and repeated thermal cycling.
• Improved Mold Durability: High hardness and wear resistance help extend the service life of die casting molds.
• Precision Internal Geometry: Core pins ensure consistent and accurate formation of internal features in cast components.
• Easy Replacement and Maintenance: Replaceable core pins simplify mold maintenance and reduce downtime.
• Reliable High-Volume Production: Stable material performance supports continuous die casting operations.

To provide an accurate quotation for custom H13 core pins, please provide the following information:

• Product drawings or CAD files
• Core pin dimensions and tolerance requirements
• Required material grade (H13 or equivalent)
• Heat treatment or surface finishing requirements
• Quantity required
• Application type (aluminum, zinc, or magnesium die casting)

Our engineering team will evaluate your requirements and provide the best manufacturing solution.