Black Oxide
Black oxide converts the surface to a stable black oxide, adding mild corrosion resistance and a uniform matte-black look with no dimensional change. Huaxiao delivers black oxide as part of our ISO 9001:2015 certified Special Process capabilities — from rapid prototyping to high-volume production, with full dimensional inspection and material certification on every order.
What Is Black Oxide?
Black Oxide is a specialized capability within our Special Process service. Black oxide converts the surface to a stable black oxide, adding mild corrosion resistance and a uniform matte-black look with no dimensional change. It is chosen when parts demand the specific combination of geometry, tolerance, material and volume that this process delivers best. Our engineers select and fine-tune the exact parameters for your application to balance performance, lead time and cost.
Our Black Oxide Capabilities
Backed by 15+ years of precision manufacturing experience and a vertically integrated workshop:
Technical Specifications
| Parameter | Specification |
|---|---|
| Heat treatment | Quenching, Tempering, Carburizing, Nitriding, Induction, Annealing |
| Surface coatings | Zinc, Nickel, Chrome, Gold, Anodizing, Electroless Nickel, DLC, PVD, Black Oxide |
| Grinding precision | Flatness ±0.002mm, Roundness ±0.001mm, Ra 0.1µm |
| EDM accuracy | ±0.005mm, Ra 0.2µm |
| Hardness range | HRC 25 – HRC 65 (post heat treatment) |
| Materials | Tool Steels, Stainless, Aluminum, Titanium, Copper, Carbide |
| Certification | ISO 9001:2015, RoHS, REACH |
| MOQ | 1 pc prototype / 100 pcs batch |
Materials We Work With
We process a broad range of metals and alloys to match your mechanical, thermal and corrosion requirements:
- Tool Steels
- Stainless Steel
- Aluminum
- Titanium
- Copper Alloys
- Carbide
Industries & Applications
Black Oxide is widely used across demanding industries. Typical applications include:
Why Choose Huaxiao for Black Oxide
- We manufacture AND finish in-house — one quality chain, no handoffs.
- Wide process range from heat treat to DLC/PVD thin-film coatings.
- ISO 9001:2015 certified with material certs and inspection.
Frequently Asked Questions
Send us your drawings, quantity and requirements. Our engineering team responds within 24 hours with a detailed quote.
