Cleveland Black Oxide

Cleveland Black Oxide specializes in metal finishing for manufacturers across multiple industries—and they're a significant supplier to firearm and ammunition component producers. Since 1941, they've been handling the technical work that makes parts perform and look right.

• •Black oxide coating – corrosion resistance and consistent dark finish on steel, stainless steel, brass, bronze, and copper
• •Heat treating – hardening and tempering services
• •Shot blasting – surface preparation and cleaning
• •Passivation – stainless steel surface treatment
• •Powder coating – protective and aesthetic finishes
• •Fabrication – custom metalwork

They moved to a 40,000 square foot facility in 2021, expanding production lines and shipping capacity. They can process individual parts up to 33 feet long or weighing up to 4,000 pounds. That flexibility matters for both small shops and volume producers.

250 years of combined team experience – not an exaggeration. The people doing this work have decades of service at the same company.

• •Difficult substrates – They're specialists with stainless steel, brass, bronze, and copper. Those materials require different chemistry than plain steel, and it's where experience matters.

• •Speed when needed – Same-day turnaround available. Their team works around the clock for orders that can't wait.

• •Pickup and delivery – Logistics department handles arrangements with their own trucks or common carriers.

• •ISO 9001:2015 certified – They're a vendor of choice for global manufacturers who need documented quality systems.

They'll work with you to prototype solutions—send them a sample and request a quote if you need custom finishing work.