Passivation is a chemical process that cleans stainless steel, preparing it for corrosive environments and applications. This process removes any free iron deposits from the steel, preventing rust.

K&L Plating uses several steps to clean, decontaminate, and promote passivation in the stainless steel. Our processes are customized to your specific grade of stainless steel, ensuring an optimal result.

The K&L Plating Advantage

No matter the size of the order, K&L Plating produces reliable outcomes on every order, as all our films and coatings meet rigorous military and ASTM specifications.

on-site quality testing
Nothing leaves our door before undergoing rigorous testing.

On-site Laboratory Testing
Most of our quality assurance (QA) testing is done in-house in our qualified laboratory, conforming to ASTM and MIL-SPEC standards. This internal QA assures that you receive quality, consistent work from us every time. We’ll work quickly to deliver your job on schedule or earlier, and offer same-day quotes and expedited turnaround if you need it.

Benefits of Working With Us:

  1. Passivation that meets your exact specifications
  2. Meets ASTM A967 (Type II, VI, VII, VIII), AMS2700E (Types 1-8), and ASTM A380 specs
  3. Rigorous internal QA that meets ASTM and MIL-SPEC standards
  4. Fast quote and turnaround

Get a Quote for Passivate

  • Same day or next day quote
  • Convenient pick up and delivery
  • Expedited service available

Why Choose Passivation?

Passivation cleans and disinfects stainless steel. By dissolving all traces of foreign metals, tool scrapings, and microscopic particles of iron, passivation inhibits the formation of rust and stains on stainless steel.


Common Applications

  • Heavy Equipment: ball bearings, fasteners
  • Aerospace: aircraft parts
  • Military: firearms, military equipment
  • Medical: orthopedic implants, surgical instruments
  • Energy:Power Distribution and Transmission

The Passivation Process

The first stage in our passivation process is a cleaning cycle, which removes any oils and residues on the steel. Next, the metal undergoes a nitric acid bath, which dissolves iron and other foreign products. The parameters of this bath is customized to the specific type and grade of your stainless steel. This process meets ASTM A967 and ASTM A380 standards.

At K&L Plating, passivated stainless steel can  goes through specific QA assessments to determine the protection ability of the finished product as requested by the customer. In compliance with MIL-STD-753 and ASTM B117 specifications, these tests can include:

  • Water Immersion Test
  • Salt Spray Test
  • Copper Sulfate Test
  • Potassium Ferricyanide-Nitric Acid Test


All of our plating and coating processes can conform to RoHS standards for environmentally-safer chemicals. If your application requires RoHS or any additional compliance standards in your industry, let us know and we can adjust our process to meet your needs.

Passivation works on

  • Stainless Steel


  • Rust prevention
  • Corrosion protection


  • ASTM A967 Nitric 1-5
  • QQ-P-35
  • AMS2700E (Types 1-8)
  • ASTM A380
  • MIL-STD-753 and ASTM B117 testing


ISO logo
RoHS compliance mark

Plating Processes

We’re a full-service plating company and our work conforms to ISO standards. Plating services include:

  • Anodize
  • Blasting
  • Phosphating
  • Passivate
  • Zinc plating
  • Baking
  • Electroless nickel
  • Chemical films
  • Solid Film Lubrication
and more…


new holland tractor

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