CNC Machining Materials
What we machine every week, with the grades buyers actually specify: five metal families (aluminum, stainless, titanium, copper alloys, carbon and tool steel) and six engineering plastics.
Metals
Aluminum
6061, 6082, 7075, 2024, 5052 and MIC-6 cast plate. Lightweight structural and enclosure parts.
Stainless Steel
303, 304, 316L, 17-4PH, 420, 440C. Corrosion resistance with controlled work-hardening.
Titanium
Gr2, Gr5, Gr23. Strength-to-weight for aerospace and medical-adjacent parts.
Brass & Copper
C36000 free-cutting, C26000, C46400, plus C11000/C14500 copper for thermal and electrical parts.
Carbon & Tool Steel
1045, 4140/42CrMo, P20/718H mold bases, H13 and D2 tool steels. Strength after heat treatment, wear inserts, tooling.
Plastics
PEEK
High-performance polymer replacing metal in medical, aerospace and semiconductor applications.
POM
Low-friction, dimensionally stable gears, guides and insulators.
ABS
Cost-effective housings, jigs and consumer parts; easy to machine and finish.
PC (Polycarbonate)
Transparent, impact resistant covers, sight glasses and machine guards.
Nylon (PA)
Gears, bushings and wear parts in PA6, PA66 and glass-filled grades.
PTFE
Chemical and heat resistant seals, insulators and low-friction sliding parts.
Quick Selection Hints
| If you need | Start with | Why |
|---|---|---|
| Highest strength aluminum | 7075-T6 | 572 MPa tensile; aerospace structures and molds |
| Weldable, corrosion resistant aluminum | 6061-T6 | Good TIG weldability and cosmetic anodizing |
| Chloride or salt exposure | 316L | Molybdenum adds pitting resistance over 304 |
| Hardened wear surfaces | 440C or 17-4PH | HRC 58-60 and HRC 40-44 respectively |
| Strength at half the weight of steel | Ti-6Al-4V (Gr5) | 950 MPa tensile at 4.4 g/cm3 |
| Complex small parts at speed | C36000 brass | 100% machinability reference grade |
| Insulation plus heat use | PEEK | Continuous use near 260 C, chemical resistant |
Send the Application, Get a Grade Recommendation
Your quote comes back within 24 hours with material feedback included.
Request a Quote