Metal Finishing Capabilities & Specifications

Keystone Corporation’s metal finishing processes meet the requirements of government, commercial and corporate specifications, including AMS, ASTM, and MIL specifications. Certification acknowledging compliance is provided at no additional charge. Technical assistance and recommendations are also available upon request. 

Contact us today with any questions regarding your specification or application requirements and a member of our expert team will be happy to assist you.

Plating For Electronic Applications

Cadmium Plating – Clear, Yellow, Black, and Olive Drab Chromate

  • MIL-C-15540
  • AMS 2418
  • ASTM B734

Electrodeposited Nickel Plating – (Bright) and Sulfamate Nickel Plating

  • AMS-QQ-N-290
  • ASTM B689
  • AMS 2403
  • AMS 2424
  • MIL-P-27418
  • ISO 1458

Gold Plating – Hard and Soft

  • MIL-G-45204
  • ASTM B488
  • AMS 2422

Silver Plating – Bright, Semi Bright, Matte

  • QQ-S-365
  • ASTM B700
  • AMS 2410
  • AMS 2411
  • AMS 2412

Tin Plating – Bright and Matte

Tin/Lead Solder Plating – Bright and Matte 95-5, 90-10, 60-40 Alloys

Stainless Steel Treatments

Other Processes

Aluminum Conversion Coating (Alodine, Irridite)

MIL-DTL-5541

  • ASTM B449
  • ASTM B921
  • AMS 2473
  • AMS 2474

Zinc Plating – Clear, Yellow, Olive Drab, and Black Chromate

  • QQ-Z-325
  • ASTM B633

Special Surface Treatments

  • Cleaning for Oxygen Service
  • Cleaning
  • Pickling
  • Electropolishing
  • Buffing and Polishing
  • Abrasive Blasting

Plated metal parts