What material is NAK80?
NAK80 is a pre-hardened mirror mold steel that is widely used in plastic mold manufacturing due to its excellent polishing properties, high wear resistance and good processing properties. This article will introduce in detail the material properties, chemical composition, physical properties and application scenarios of NAK80.
1. Material properties of NAK80
NAK80 is a nickel-aluminum-copper alloy steel with the following notable properties:
| Features | Description |
|---|---|
| High polishability | Can achieve mirror effect, suitable for molds with high smooth finish requirements |
| Wear resistance | High hardness and excellent wear resistance |
| Processing performance | Good cutting performance and easy to process into complex shapes |
| Pre-hardened | Pre-hardened at the factory and ready for use without heat treatment |
2. Chemical composition of NAK80
The chemical composition of NAK80 is the basis for its excellent performance. The specific composition is as follows:
| element | Content (%) |
|---|---|
| Carbon (C) | 0.10-0.20 |
| Silicon (Si) | ≤0.30 |
| Manganese (Mn) | ≤1.50 |
| Nickel (Ni) | 2.80-3.50 |
| Aluminum (Al) | 0.70-1.20 |
| Copper (Cu) | 0.80-1.20 |
3. Physical properties of NAK80
The physical properties of NAK80 make it excellent in mold manufacturing. The specific properties are as follows:
| Performance | numerical value |
|---|---|
| Hardness (HRC) | 38-42 |
| Tensile strength (MPa) | ≥1000 |
| Yield strength (MPa) | ≥800 |
| Elongation (%) | ≥15 |
4. Application scenarios of NAK80
NAK80 is widely used in the following fields due to its excellent performance:
| Application areas | Specific use |
|---|---|
| plastic mold | Plastic product molds with high smoothness requirements |
| electronic products | Mobile phone cases, digital product cases, etc. |
| Auto parts | Automotive interior parts, instrument panels, etc. |
| Home appliances | TV casing, air conditioning panel, etc. |
5. Processing and maintenance of NAK80
The following points need to be noted during processing and use of NAK80:
1.During processing: Since NAK80 is pre-hardened, carbide tools must be used during processing and appropriate cutting speeds must be maintained.
2.When polishing: NAK80 has excellent polishing performance, but it needs to be polished with diamond abrasive paste to achieve the best effect.
3.During maintenance: After using the mold, the remaining plastic should be cleaned in time to avoid corrosion and wear.
6. Comparison between NAK80 and other mold steels
Compared with common mold steels such as P20, S136, etc., NAK80 has the following advantages:
| Comparative item | NAK80 | P20 | S136 |
|---|---|---|---|
| Polishability | Excellent | Average | good |
| Wear resistance | high | medium | high |
| Processing performance | good | good | medium |
| Pre-hardened | Yes | Yes | No |
Summary
NAK80 is a high-performance mirror mold steel that occupies an important position in the field of plastic mold manufacturing due to its excellent polishing performance, high wear resistance and good processing performance. Whether it is electronic products, auto parts or home appliances, NAK80 can meet the requirements of high finish and high precision. Through reasonable processing and maintenance, NAK80 molds can significantly improve production efficiency and product quality.
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