Electroless Nickel
Electroless nickel (EN) plating is a high-performance metal finishing process that uses an autocatalytic chemical reaction to deposit a uniform nickel-phosphorus or nickel-boron coating on all surfaces, including complex geometries and internal bores, without electrical current. This coating delivers exceptional hardness, superior wear and corrosion resistance, and excellent lubricity, with properties that can be further enhanced through heat treatment. EN plating also offers low friction, strong adhesion to metals and non-metals, and customizable finishes ranging from matte to bright, making it ideal for demanding applications in aerospace, automotive, electronics, and industrial environments.
Electroless Nickel Coating Comparison
| Phosphorus Level | Typical P Content | Key Properties | Corrosion Resistance | Hardness (as plated / after heat treat) | Magnetic? | Typical Applications |
|---|---|---|---|---|---|---|
| Low-P | 2–4% | – Very high hardness – Excellent wear resistance – Good adhesion |
Moderate | ~500 HV / up to 1100 HV | Yes | Gears, hydraulic components, molds |
| Mid-P | 5–9% | – Balanced properties – Good corrosion & wear resistance – General-purpose |
Good | ~500–600 HV / up to 1000 HV | Slightly magnetic | Automotive parts, aerospace hardware |
| High-P | 10–13% | – Superior corrosion protection – Non-magnetic – Smooth finish |
Excellent | ~450 HV / up to 900 HV | No | Chemical processing equipment, electronics, marine |
- Low-P: Best for abrasion and mechanical stress.
- Mid-P: All-around performer for mixed environments.
- High-P: Ideal for harsh chemical or marine conditions.
Key Benefits
- Uniform deposit regardless of part geometry
- Excellent Corrosion Resistance
- High Hardness and Wear Resistance
- Improved Lubricity and Release Properties
- Versatility Across Substrates
- Low labor costs
Why PSI Makes a Difference
- We are YOUR trusted knowledge source
- We help YOU save valuable time
- We support YOU in reducing costs
- We empower OUR customers to achieve better results
We are YOUR single source for all your metal finishing needs
Electroless Nickel Coating Comparison
| Phosphorus Level | Typical P Content | Key Properties | Corrosion Resistance | Hardness (as plated / after heat treat) | Magnetic? | Typical Applications |
|---|---|---|---|---|---|---|
| Low-P | 2–4% | – Very high hardness – Excellent wear resistance – Good adhesion |
Moderate | ~500 HV / up to 1100 HV | Yes | Gears, hydraulic components, molds |
| Mid-P | 5–9% | – Balanced properties – Good corrosion & wear resistance – General-purpose |
Good | ~500–600 HV / up to 1000 HV | Slightly magnetic | Automotive parts, aerospace hardware |
| High-P | 10–13% | – Superior corrosion protection – Non-magnetic – Smooth finish |
Excellent | ~450 HV / up to 900 HV | No | Chemical processing equipment, electronics, marine |
- Low-P: Best for abrasion and mechanical stress.
- Mid-P: All-around performer for mixed environments.
- High-P: Ideal for harsh chemical or marine conditions.
Key Benefits
- Uniform deposit regardless of part geometry
- Excellent Corrosion Resistance
- High Hardness and Wear Resistance
- Improved Lubricity and Release Properties
- Versatility Across Substrates
- Low labor costs
Why PSI Makes a Difference
- We are YOUR trusted knowledge source
- We help YOU save valuable time
- We support YOU in reducing costs
- We empower OUR customers to achieve better results
We are YOUR single source for all your metal finishing needs
