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Material Guide

Compare metals and plastics across strength, cost, and finish.

Engineering Materials Guide

Check out our selection of quality materials for CNC machining, injection molding, sheet metal fabrication and 3D printing, for both prototyping and production stages.

CNC Metals

Aluminum 6061-T6
The general-purpose machining aluminum. Good strength, corrosion resistance and weldability with excellent machinability.
Aluminum 7075-T6
High-strength aerospace aluminum with strength approaching many steels at a fraction of the weight.
Stainless Steel 304
General-purpose austenitic stainless steel with excellent corrosion resistance and formability.
Stainless Steel 316L
Molybdenum-bearing stainless steel with superior chloride and marine corrosion resistance.
Carbon Steel 1045
Medium carbon steel with good machinability and strength; hardenable for higher wear resistance.
Brass C360
Free-cutting brass with the highest machinability rating of any copper alloy and an excellent surface finish.
Copper C110
Electrolytic tough pitch copper with the highest electrical and thermal conductivity of common engineering metals.
Titanium Grade 5 (Ti-6Al-4V)
High strength, low density and exceptional corrosion resistance for aerospace and medical components.

CNC Plastics

ABS
Low-cost, easy-to-machine plastic with good impact resistance, strength and stiffness.
Polycarbonate (PC)
Transparent engineering plastic with excellent impact strength and dimensional stability.
POM (Acetal / Delrin)
High-stiffness, low-friction thermoplastic. The standard choice for gears, bearings and bushings.
PA / Nylon 6/6
Excellent wear resistance and high tensile strength; glass-filled grades more than double stiffness.
PEEK
High-temperature engineering thermoplastic that retains flexural and tensile properties at very high temperatures.
PMMA (Acrylic)
Hard, transparent plastic with excellent optical clarity and UV stability. A lighter alternative to glass.
PPS
High-performance plastic with outstanding chemical resistance and inherent flame retardancy.
PEI (ULTEM)
Amber high-temperature thermoplastic combining exceptional mechanical, thermal and electrical properties.
PTFE (Teflon)
Very high melting point with exceptional chemical resistance. Hydrophobic, non-wetting and non-stick.

Injection Molding Plastics

ABS
Tough, easy-to-process plastic with a good balance of impact resistance, strength and stiffness.
ABS/PC Blend
Combines the toughness of polycarbonate with the processability and cost of ABS. Flame-retardant grades available.
Polycarbonate (PC)
Outstanding impact strength combined with optical clarity and good heat resistance.
Polypropylene (PP)
Versatile, chemical-resistant and FDA-compliant. Living-hinge capable at low cost.
PA / Nylon (PA6, PA66)
Good wear resistance, high tensile strength and excellent fatigue properties.
POM (Acetal / Delrin)
High stiffness, low friction and excellent dimensional stability for precision molded parts.
PBT
Semi-crystalline polyester with excellent electrical insulation and fast crystallization for short cycles.
PPS
Inherently flame retardant with excellent chemical resistance and high-temperature dimensional stability.
PEEK
High-temperature thermoplastic that withstands aggressive sterilization and chemical exposure.
PEI (ULTEM)
Amorphous high-temperature thermoplastic with exceptional mechanical and electrical properties.
PMMA (Acrylic)
Outstanding optical clarity and UV stability. A lighter, shatter-resistant alternative to glass.
TPU / TPE
Rubber-like flexibility with thermoplastic processability for grips, seals and overmolding.
Liquid Silicone Rubber (LSR)
Platinum-cure silicone with exceptional thermal stability and clarity. Durometers from 30A to 80A.
Medical-Grade Silicone
Platinum-cured silicone for medical and food contact. Autoclave- and gamma-stable.
Optical Silicone Rubber
High-clarity silicone for light guides and lenses with minimal yellowing over lifetime.

Sheet Metals

Aluminum 5052
The most common sheet metal aluminum. Excellent formability, corrosion resistance and weldability.
Aluminum 6061
Precipitation-hardened aluminum sheet with good mechanical strength and excellent machinability.
Stainless Steel 304
Clean-finish austenitic stainless sheet. The default for food, medical and outdoor housings.
Stainless Steel 316L
Molybdenum-bearing stainless steel with superior chloride and marine corrosion resistance.
Cold Rolled Steel (SPCC)
Smooth, consistent mild steel. The economical base material for powder-coated enclosures and chassis.
Galvanized Steel (SGCC)
Zinc-coated steel with a sacrificial corrosion-resistant layer for outdoor enclosures and panels.
Copper C110
High-conductivity copper sheet. The standard for busbars, shielding and thermal management.
Brass H62
Copper-zinc alloy sheet with good corrosion resistance and an attractive finish.

3D Printing Plastics

Standard Resin (SLA)
General-purpose stereolithography resin with high feature resolution and smooth cosmetic surfaces.
ABS-Like Resin
Tough resin that mimics the look and feel of an injection-molded part for functional and snap-fit testing.
High-Temperature Resin
Ceramic-filled composite resin with heat deflection above 200 °C for tooling and hot-air flow parts.
Nylon PA12 (SLS)
Durable, impact-resistant SLS nylon that handles complex geometry and thin walls without supports.
Nylon PA12 GF (SLS)
30% glass-filled nylon with significantly higher stiffness, strength and temperature resistance.
Nylon PA12 (MJF)
Near-isotropic Multi Jet Fusion nylon at higher throughput and lower unit cost than SLS.
PLA (FDM)
The most economical FDM filament for large, low-cost concept models and visual prototypes.
ABS (FDM)
Better impact resistance and higher temperature tolerance than PLA for functional parts and fixtures.
PETG (FDM)
Combines the printability of PLA with the durability and chemical resistance of ABS.
TPU (FDM)
Flexible polyurethane filament with rubber-like elasticity for gaskets, dampers and grips.

3D Printing Metals

Aluminum AlSi10Mg
Cast-aluminum-equivalent alloy printable into complex lattice and conformal-cooling geometries.
Titanium Ti-6Al-4V
Full-density Grade 5 titanium with biocompatibility and outstanding specific strength.
Stainless Steel 316L
Full-density 316L stainless steel with excellent corrosion resistance and complex internal channels.
Inconel 718
Nickel-chromium superalloy retaining strength to 700 °C with exceptional oxidation resistance.
Cobalt Chrome (CoCr)
Cobalt-chromium alloy with excellent wear and corrosion resistance for implants and dental frameworks.

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