Raw aluminium ingots, a common CNC stock material
Materials Guide

CNC Machining Materials

Wide selection of metals and engineering plastics for CNC machined parts. Material availability confirmed during project review.

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Metals

Common metal alloys for CNC machining applications.

Material Common Grades Characteristics Typical Applications
Aluminum 6061-T6, 7075-T6, 2024-T3, 5052 Lightweight, excellent machinability, good corrosion resistance Aerospace parts, housings, brackets, heat sinks
Stainless Steel 304, 316, 303, 17-4 PH, 410 Corrosion resistant, good strength, biocompatible Medical devices, food equipment, marine components
Mild Steel 1018, 1045, A36 Good strength, weldable, cost-effective Structural components, fixtures, jigs
Alloy Steel 4140, 4340, 8620 High strength, heat treatable Gears, shafts, high-stress components
Brass C360, C260, C464 Excellent machinability, corrosion resistant, decorative Fittings, valves, decorative parts, electrical components
Copper C101, C110, C145 Excellent conductivity, good machinability Electrical components, heat exchangers, bus bars
Titanium Grade 2, Grade 5 (Ti-6Al-4V) High strength-to-weight ratio, biocompatible, corrosion resistant Aerospace, medical implants, high-performance parts

Engineering Plastics

Precision CNC machined aluminium housing
Precision CNC machined aluminium housing - photo via Wikimedia Commons, CC BY-SA 4.0
Stock Materials

Parts in Production Materials

From aluminium housings to steel brackets, the right stock is confirmed during project review based on supplier availability.

High-performance plastics for CNC machining.

Material Full Name Characteristics Typical Applications
ABS Acrylonitrile Butadiene Styrene Good impact resistance, easy to machine, cost-effective Housings, enclosures, prototypes, consumer products
POM (Delrin) Polyoxymethylene (Acetal) Low friction, high stiffness, excellent dimensional stability Gears, bearings, bushings, precision parts
Nylon (PA) Polyamide (PA6, PA66) Wear resistant, low friction, good chemical resistance Bushings, gears, rollers, wear parts
PEEK Polyetheretherketone High temperature, chemical resistant, biocompatible, high strength Medical devices, aerospace, high-temp applications
Polycarbonate (PC) Polycarbonate Transparent, impact resistant, good dimensional stability Windows, shields, optical parts, safety equipment
PTFE (Teflon) Polytetrafluoroethylene Very low friction, chemical resistant, high temperature Seals, gaskets, bearings, chemical handling
UHMW-PE Ultra-High Molecular Weight Polyethylene Extremely low friction, abrasion resistant Wear strips, guide rails, chute liners

Material Selection Guide

Row of CNC milling machines on a production floor
Row of CNC milling machines on a production floor - photo via Wikimedia Commons, CC BY-SA 2.0
Coordination

Brief Us Once

Share your material requirements once. We coordinate the supplier match and keep the specification consistent through production.

For Lightweight Parts

Choose aluminum alloys (6061, 7075) or engineering plastics (ABS, PC) for weight-critical applications.

For Corrosion Resistance

Stainless steel (304, 316), titanium, or PEEK for harsh chemical or marine environments.

For High Temperature

Stainless steel, titanium, or PEEK can withstand elevated operating temperatures.

For Wear Resistance

Hardened steels, POM (Delrin), Nylon, or UHMW-PE for sliding or impact applications.

For Electrical Conductivity

Copper, brass, or aluminum for electrical and thermal conductivity requirements.

For Cost Optimization

Mild steel, aluminum 6061, ABS, or Nylon offer good properties at lower cost.

Material availability and grades are confirmed during project review based on your specific requirements and the assigned manufacturing partner.

Need Help Selecting Materials?

Upload your project requirements and we'll help you choose the right material for your application.

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