Titanium Anodizing Colour Parameters and Properties
Technical data for titanium anodizing including voltage-colour relationships, oxide thickness, and wear resistance.
Cited (no URL)
Source: Industry Standards
| Property | Value | Unit | Notes |
|---|---|---|---|
| Type II Oxide Thickness | 200-2200 | Å | Voltage 10-110V |
| Type II Voltage Range | 10-110 | V | Colour varies with voltage |
| Type III Oxide Thickness | 20-100 | µm | Hard anodizing |
| Type III Hardness | 400-600 | HV | |
| Type III Dielectric Strength | 500-700 | V |
Anodizing Voltage-Colour Relationship (Type II)
| Voltage | Colour | Oxide Thickness |
|---|---|---|
| 10V | Bronze/Gold | 200Å |
| 20V | Purple/Blue | 400Å |
| 30V | Light Blue | 600Å |
| 50V | Green | 1000Å |
| 70V | Pink/Magenta | 1400Å |
| 90V | Green-Yellow | 1800Å |
| 110V | Rose | 2200Å |
Type III (Hard Anodizing)
| Property | Value |
|---|---|
| Oxide Thickness | 20–100 µm |
| Hardness | 400–600 HV |
| Dielectric Strength | 500–700 V |
Evidence Basis
Based on industry-standard titanium anodizing process data. The voltage-colour and oxide-thickness relationships are typical Type II/III values; they can shift with alloy, electrolyte, and surface preparation.
Engineering Interpretation (titanium.blog)
(titanium.blog) Titanium anodizing colour is a function of oxide thickness set by anodizing voltage, not a dye — which is why consistent voltage control gives repeatable colours. Type III (hard) anodizing builds a thick, wear-resistant oxide; specify Type II for cosmetic identification and Type III for wear-critical surfaces. Industry-typical values, not guarantees.