Nickel plating
Electroless nickel plating (ENP) is a widely used surface engineering technology that has gained significant popularity across numerous industrial sectors.
In industrial applications, corrosion and wear resistance are among the key requirements for machine components and tools.
Specification based on:
ASTM B733-22
Type of coating:
Chemical (autocatalytic) nickel plating – Ni-P (6–9% P)
Precision in Every Detail
Specifications of Offered Coatings
Electroless Nickel Plating (ENP) parameters according to ASTM B733 classification
Coating Type by Composition
Type I: No requirements (Ni)
Type IV: 5–9% (Standard engineering applications)
Service Condition - Based on Coating Thickness
SC0: 0.1 µm (Diffusion barriers, underlayers)
SC1: 5 µm (Light corrosion protection)
SC2: 13 µm (Moderate industrial environments)
Heat Treatment Class (Table 3 – ASTM B733-22)
Class 1: None (No heat treatment)
Class 2: 260–400°C (Maximum hardness)
Class 3: 180–200°C (Stress relief, adhesion on steel)
Class 4: 120–130°C (Adhesion on carburized steel or aged aluminum)
Class 5: 140–150°C (Adhesion on aluminum and copper alloys)
Class 6: 300–320°C (Adhesion on titanium)
Coatings
Corrosion tests
Metallic coating durability test stand SALT-CAB 250. It is used to evaluate sample coatings in a test with variable temperature and humidity according to ISO 9227, ISO6270, ASTM B11. The salt mist test is most often used to check the effectiveness of the production process. The corrosion chamber allows for comparative tests of corrosion resistance of materials such as paints and coatings. We use it, among others, to evaluate the nickel coatings we produce
Additional Services
- Stress relief before coating
- Stress relief after coating (hydrogen embrittlement reduction)
- Peening (glass bead blasting) before coating
- Protective atmosphere during heat treatment above 260°C: Nitrogen / Argon
- Hardness testing
