MI CNC Parts
313-909-6531 evan@micncparts.com
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Materials

What we work in.

Most common metals and plastics, plus anodizing, powder coat and passivation. If your part calls for something specific, send it over. Odds are we can quote it.

CNC machining materials run from 6061 and 7075 aluminum, 303, 304, 316, and 17-4 PH stainless, mild, alloy, and A2 or D2 tool steel, Grade 5 titanium, brass, and copper, to engineering plastics like Delrin, nylon, PEEK, PTFE, and UHMW, plus finishes like anodizing, powder coat, and passivation. Send a STEP file and a PDF; a quote comes back in 24-48 hours, with no minimum order, and parts ship in 4-6 weeks, 1-2 weeks rush, or 6-8 weeks when timing is flexible.

Updated October 2026

Metals

Common metals.

Aluminum 6061 and 7075. Light, machines easily, a solid all-around choice.
Stainless Steel 303, 304, and 316. Corrosion-resistant and strong.
Steel Mild, alloy, and tool steels (A2, D2, O1). Strong and hard-wearing.
Titanium Grade 5 and others. High strength at low weight.
Brass C360 and more. Easy to machine: good for fittings and fixtures.
Copper Excellent conductivity for electrical parts.
Bronze A good pick for bushings, bearings, and wear parts.

Plastics

Engineering plastics.

Delrin / Acetal Stiff, low-friction, and dimensionally stable.
Nylon Tough and wear-resistant.
PEEK High-performance: heat- and chemical-resistant.
Polycarbonate Impact-resistant and optically clear.
PTFE / Teflon Very low friction and chemically inert.
UHMW Tough, slick, and abrasion-resistant.
ABS Easy to machine: good for prototypes and housings.
Garolite / G-10 A strong, rigid composite and good electrical insulator.

Compare

Nine materials,
side by side.

Relative strength, weight, and machinability for the materials most parts get quoted in, and what each one is typically used for.

Aluminum 6061

The default alloy for a reason: strong enough for most work, light, and it anodizes well.

Strength
Weight (lower is lighter)
Machinability

Typical parts

  • Brackets & mounts
  • Housings & enclosures
  • Fixture plates
  • Heat sinks
Quote a part in it

Finishes

Finishing, if you need it.

  • Anodizing
  • Passivation
  • Powder Coat

Don’t see your material? Send your files and ask. We’ll tell you straight whether we can quote it. Put the grade and finish on the print, or ask and the team will suggest one. A finish called out on the print is quoted with the part.

Get Started

Send us your files.
We’ll take it from there.

A quote in 24-48 hours, no minimums. Like the quote, and we’ll make your parts and ship them to you.

Get a Quote