Electroless Nickel Plating

Industrial Electroless Nickel Plating (MIL-C-26074, AMS 2404, ASTM B-733 standards):

Advanced Surface Technologies specializes in high quality Electroless Nickel Plating. Electroless Nickel is a high quality engineering coating for corrosion resistance, hardness, lubricity, solderability and wear resistance. The advantage that Electroless Nickel has over almost all other plated coatings is the uniformity of the nickel deposit thickness. Without the high and low current density found in electrolytic plating processes, Electroless nickel can deposit into recesses without burning or having excessive thickness on the outer edges of a part. The coating conforms exactly to the surface finish of the part so cosmetic finishes will be enhanced by the Electroless Nickel deposit. Advanced Surface Technologies’ Electroless Nickel coatings conform to AMS2404, ASTM B733 and MIL-C-26074.

Being a leader in Electroless Nickel plating AST has 8 Electroless Nickel process lines that are substrate specific. Cleaning and alloy perpetration are extremely important to the quality of the Electroless Nickel deposit and using chemistries that are specifically designed to clean each alloy allows AST to provide the quality expected, even on the most difficult of parts.

There are many different types of EN coatings and processes available to meet a wide range of unique applications. Physical and mechanical properties vary considerably from one EN process to another depending on the phosphorus content, the formulation of the bath and both the pre-plate and post-plate treatments, yet all the EN coatings offer excellent deposit uniformity and superior corrosion protection.

EN plating is a chemical process that involves several simultaneous reactions in an aqueous solution, which occur without the use of external electrical power. The reaction is accomplished when hydrogen is released by a reducing agent (normally sodium hypophosphite), and oxidized thus producing a negative charge on the surface of the part. The charge causes a layer of nickel and phosphorus to form and this continues until the part is removed from the solution. Since the plating process requires no electrical current, the coating produced is a very uniform structure that can be applied over various metals and substrates.

Our experienced staff can construct custom solutions for your distinct finishing needs. If its corrosion protection, soulderability, hardness, cosmetics or lubricity we can help you achieve the final product.

Specifications

Classification Class 1: Except for hydrogen embrittlement relief, no post plating thermal treatment.Class 2: Thermal treatment ar 450F (232C) or above to harden the deposit.Class 3: Thermal treatment ar 375F (191C) to improve adhesion for nonheat treatable aluminum alloys and beryllium alloys.Class 4: Thermal treatment at 250F (121C) to improve adhesion for heat treatable aluminum alloys.
Grade Grade A: .001” Minimum ThicknessGrade B: .0005” Minimum ThicknessGrade C: .0015 Minimum Thickness
Classification Class 1: Except for hydrogen embrittlement relief, no post plating thermal treatment.Class 2: Thermal treatment ar 450F (232C) or above to harden the deposit.Class 3: Thermal treatment ar 375F (191C) to improve adhesion for nonheat treatable aluminum alloys and beryllium alloys.Class 4: Thermal treatment at 250F (121C) to improve adhesion for heat treatable aluminum alloys.
Grade Grade A: .001” Minimum ThicknessGrade B: .0005” Minimum ThicknessGrade C: .0015 Minimum Thickness
Type Type I: No Requirement for PhosphorusType II: 1-3% PhosphorusType III: 2-4% PhosphorusType IV: 5-9% PhosphorusType V: 10% and above Phosphorus
Service Condition SCO: Minimum thickness .000004” (0.1 um)SC1: Light Service .0002” (5 um)SC2: Mild Service .0005” (13um)SC3: Moderate Service .001” (25 um)SC4: Severe Service .003” (75 um)
Class Class 1: No Heat Treatment, As PlatedClass 2: Heat treatment for Maximum HardnessType I-
260C            20 hours
285C             16 hours
320C               8 hours
400C               1 hourType II- 350-380C       1 hourType III- 360-390C       1 hourType IV- 365-400C       1 hourType V- 375-400         1 hourClass 3: Adhesion on Steel180-200C       2-4 hoursClass 4: Adhesion, Carburized Steel and Age Hardened Aluminum.120-130C       1-6 hoursClass 5: Adhesion on Beryllium and Aluminum.140-150C       1-2 hoursClass 6: Adhesion on Titanium300-320C       1-4 hours

Capabilities

Plating Capabilities Rack Plating LinesBarrel Plating Lines
Standards Met MIL-C-26074AMS 2404ASTM B-733

Additional Information

Industries Served AutomotiveAerospaceCommunicationsComputerElectronicsSolarHousehold AppliancesOil & Gas EquipmentMedical EquipmentRecreational EquipmentTool & DiePharmaceutical
Certifications ISO 9001:2000 Certified
Quality System Features Dedicated to company-wide continuous improvementIn-house laboratory facilities
Environmental System Features State-of-the-art, computer-controlled waste treatment system
Professional Associations and Awards
  • Charter member of the Strategic Goals Program, a cooperative effort between the metal finishing industry and EPA
  • National Association of Metal Finishers (NAMF)
  • American Electroplaters and Surface Finishers Society (AESF)
  • Recipient of the Colorado Environmental Leadership Award
Service Features
  • Production scheduling and production flexibility that minimize turnaround time
  • A staff that understands the importance of quick response for our customers
More Information