Injection mold material: NAK80 steel

author: Universe Plastic

2024-08-09

NAK80 steel is a high-performance mold steel widely used in injection mold manufacturing. Its characteristics and applications make it very popular in the mold industry.

NAK80 steel is often used to make injection molds that require high surface finish and precision. It is often used to make high-precision, high-finish injection plastics.

NAK80 steel composition and properties

Element	C: 0.15 - 0.25% Si: 0.10 - 0.30% Mn: 0.30 - 0.80% Ni: 3.00 - 3.50% Cr: 1.00 - 1.50% Mo: 0.20 - 0.50% Cu: 1.00 - 1.50% Al: 1.00 - 1.50% P: ≤0.01% S: ≤0.01%	thermal expansion coefficient	11.6 × 10⁻⁶/°C
hardness	HRC 37-43	Polishing performance	good
Tensile strength	1000 MPa >	Processing performance	good
Charpy	20-30 J/cm²	Corrosion resistance	good
Elongation	10-12%

Characteristics of NAK80 steel

1. Pre-hardening treatment

NAK80 steel is pre-hardened steel, which has been pre-hardened before leaving the factory. Its hardness is usually 37-43 HRC. This characteristic eliminates the need for further heat treatment during the mold manufacturing process, thereby shortening the mold production cycle.

2. Excellent processing performance

Since NAK80 steel has good machinability, cutting, polishing, engraving and other processes can be carried out smoothly. In addition, it performs very well in EDM.

3. Excellent polishing properties

NAK80 steel has excellent polishability and can achieve a very smooth surface, which is very important for molds of high-gloss plastic products, such as optical lenses, cosmetic containers, etc.

4. Good toughness and wear resistance

The steel has high toughness and wear resistance, which allows it to maintain the stability of the mold shape during high-pressure injection molding and extend the service life of the mold.

5. Anti-corrosion performance

NAK80 steel has good corrosion resistance and can be used in humid environments to reduce mold damage caused by corrosion.

NAK80 steel injection mold suitable applications

1. High-gloss plastic parts: such as optical lenses, LCD display casings, cosmetic containers, etc.

2. Plastic parts with complex shapes: Due to the good processability and polishability of NAK80 steel, it is suitable for manufacturing molds with complex structures.

3. Small batch, high-precision mold: It is suitable for manufacturing molds for small batch production because it does not require secondary heat treatment and can significantly reduce production time and cost.

Summarize

Through its unique composition and optimized performance parameters, NAK80 steel is particularly suitable for manufacturing molds that require high surface finish and precision. Its high hardness, excellent toughness and processability make it the material of choice in high-end injection mold manufacturing.

Dongguan Universe Plastic Factory has more than 15 years of experience in manufacturing injection molds. It has a professional team, advanced processing equipment and high-quality NAK80 steel material supply channels to provide high-quality and cost-effective NAK80 steel injection mold manufacturing services.

If you are looking for NAK80 steel mold manufacturer, welcome to contact us to get the latest service price.

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