Keystone Corporation’s Electroplating & Metal Finishing Capabilities & Specifications

Available to Customers in Chicago, IL

Keystone Corporation offers industrial and commercial electroplating and metal finishing to customers in the Chicago area. With over 95 years of experience, we offer metal finishing completed to government requirements as well as commercial specifications, including AMS, ASTM and MIL. Technical assistance and recommendations are available upon request from our expert team members.

Certification acknowledging compliance is available for no additional charge. 

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At Keystone Corporation, we offer a variety of industrial and commercial electroplating services to meet your metal finishing needs. Following is a comprehensive list of our various metal plating processes and some of the specifications to which they can be completed:

Our Plating for Electronic Applications

Cadmium Plating

  • AMS-QQ-P-416
  • AMS 2400
  • AMS 2401
  • ASTM B766
  • ISO 4521

Our cadmium plating is available in a clear, yellow, black or olive drab chromate finish.

Copper Plating

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

Electrodeposited Nickel Plating (Bright) & Sulfate Nickel Plating

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

Electroless Nickel Plating

  • AMS-C-26074
  • ASTM B733
  • AMS 2404

Gold Plating – Soft & hard

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

Silver Plating

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

We offer silver plating in bright, semi-bright and matte.

Tin Plating – Bright & matte

  • MIL-T-10727
  • ASTM B545
  • AMS 2408

Tin/Lead Solder Plating 

  • MIL-P-81728
  • AMS-P-81728
  • ASTM B579
  • M230 of MIL-F-14072

Our tin/lead plating is available in bright and matte as well as 95-5, 90-10 and 60-40 alloys.

Our Stainless Steel Treatments

Keystone also offers several stainless steel treatments and different types of passivation to customers in the Chicago area. Review our list and their specifications below:


  • AMS-QQ-P-35
  • AMS 2700
  • ASTM A967
  • ISO 16048

Pickle Passivation

  • ASTM A380

Other Processes

Additional processes offered by Keystone Corporation are as follows:

Zinc Phosphate & Manganese Phosphate Coating

  • MIL-DTL-16232
  • TT-C-490
  • MIL-STD-171

Aluminum Conversion Coating – Alodine & iridite

  • MIL-DTL-5541
  • ASTM B449
  • ASTM B921
  • AMS 2473
  • AMS 2474

Zinc Plating 

  • QQ-Z-325
  • ASTM B633

Our industrial zinc plating is available in clear, yellow, black or olive drab chromate.

Additional Special Surface Treatments Available

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

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Keystone Corporation has assisted customers for over 95 years, completing commercial orders ranging from a few specialized pieces to high-volume applications. Contact us today to learn more about the industrial electroplating and metal finishing services we offer to those in Chicago.

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Plated metal parts

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