Material Selection Guide

Firstcut works in the materials listed below. There are limitations on the thicknesses that some materials are available in and consequently not every prototype part can be made in every material. Your FirstQuote® interactive quote will present the material options available for your part/s. If you require a material that is not on the list, please let us know and we will review your request.

Now offering turned parts in all grades of aluminum and steel shown in the table below.
The max diameter for turned parts is 2.95 in (74.9 mm).
Add Metal Milling Material
Material / Grade Features Color Max Depth Data Sheet Admin Stuff

Aluminum / 6061-T651

  • Improved corrosion resistance over 7075
  • General purpose aluminum
  • Medium strength
Gray 3.75 in. (95.25mm) Edit | Delete

Aluminum / 7075-T651

  • Higher strength over 6061
  • Good fatigue strength
Gray 3.75 in. (95.25mm) Edit | Delete

Brass / 260 (70/30)

  • Good corrosion resistance
  • Resistant to most chemicals
  • Plate stock
Yellow 1.75 in. (44.45mm) Edit | Delete

Copper / C101

  • Oxygen-free electrical copper
  • High electrical conductivity
  • Good corrosion resistance in most environments
  • Weak against acids, halogens sulphides and ammonia solutions
Red 2.75 in. (69.85mm) Edit | Delete

Low Carbon Steel / CR 1018

  • General purpose low carbon steel
  • Heat treatable
  • Softest steel
  • Will rust
Gray 1.25 in. (31.75mm) Edit | Delete

Magnesium / AZ31

  • High strength-to-weight ratio
  • Lighter than aluminum
  • Good dimensional stability after machined
  • May require surface treatment after machining to protect from corrosion
Gray 3.75 in. (95.25mm) Edit | Delete

Stainless Steel / 17-4 PH

  • Higher magnetism than 304 and 316 stainless steel
  • Oxidation and corrosion resistance
Gray 1.75 in. (44.45mm) Edit | Delete

Stainless Steel / 304/304L

  • Most commonly used stainless steel
  • Low carbon
Gray 1.75 in. (44.45mm) Edit | Delete

Stainless Steel / 316/316L

  • Increased corrosion and chemical resistance over 304
  • Increased resistance to cracking and pitting
Gray 1.75 in. (44.45mm) Edit | Delete

Steel Alloy / 4140

  • Good toughness and strength
  • Heat treatable
  • Harder than CR 1018
Gray 1.75 in. (44.45mm) Edit | Delete