Material Selection Guide for Custom CNC Machined Parts

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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.

Material	Material type	Cost	Max Depth
Aluminum - Gray (Aluminum 6061-T651)	Soft metal	Low	3.75 in.
Aluminum - Gray (Aluminum 7075-T651)	Soft metal	Low	3.75 in.
Brass - Yellow (Brass 260 (70/30))	Soft metal	Very High	1.75 in.
Copper - Red (Copper C101)	Soft metal	Very High	2.75 in.
Magnesium - Gray (Magnesium AZ31)	Soft metal	High	3.75 in.
Stainless Steel - Gray (Stainless Steel 304/304L)	Hard metal	Very High	1.75 in.
Stainless Steel - Gray (Stainless Steel 316/316L)	Hard metal	Very High	1.75 in.
Steel Alloy - Gray (Steel Alloy 4140)	Hard metal	High	1.75 in.
Steel Mild Low Carbon - Gray (Steel Mild Low Carbon CR1018)	Hard metal	Medium	1.25 in.
ABS - Black (ABS)	Plastic	Low	3.75 in.
ABS - Natural (ABS)	Plastic	Low	3.75 in.
ABS-Flame Retardant - Black (ABS-FR)	Plastic	High	1.75 in.
Acetal 20% Glass Filled - Natural (Delrin 570)	Plastic	Very High	1.75 in.
Acetal Copolymer - White (Acetal Copolymer)	Plastic	Medium	3.25 in.
Acetal Homopolymer - Black (Delrin 150)	Plastic	Medium	3.75 in.
Acetal Homopolymer - Natural (White) (Delrin 150)	Plastic	Medium	3.75 in.
Acetal Static Dissipative - Tan (Tecaform SD)	Plastic	Very High	2.75 in.
CPVC - Gray (CPVC)	Plastic	Medium	2.75 in.
HDPE - Natural (White) (High Density Polyethylene)	Plastic	Low	3.75 in.
LDPE - Natural (Low Density Polyethylene)	Plastic	Low	0.75 in.
Nylon 6 - Black (Nylon 6)	Plastic	Medium	2.75 in.
Nylon 6 - Light Blue (Nylon 6 )	Plastic	Medium	2.75 in.
Nylon 6/6 - Black (Nylon 6/6)	Plastic	Medium	0.75 in.
Nylon 6/6 - Natural (Nylon 6/6)	Plastic	Medium	0.75 in.
Nylon 6/6 30%GF - Natural (Nylon 6/6 30%GF)	Plastic	Very High	1.75 in.
PC - Black (Polycarbonate)	Plastic	High	1.25 in.
PC - Clear (Polycarbonate)	Plastic	Medium	1.75 in.
PC - Translucent (Polycarbonate )	Plastic	High	3.75 in.
PC 20% GF - Black (Polycarbonate 20% GF)	Plastic	Very High	1.75 in.
PEEK - Natural (PEEK)	Plastic	Very High	0.75 in.
PEI - Natural (Ultem 1000)	Plastic	Very High	2.75 in.
PEI - Black (Ultem 1000)	Plastic	Very High	2.75 in.
PEI 30% GF - Natural (Ultem 30% GF 2300)	Plastic	Very High	1.75 in.
PET - Natural (White) (Polyethylene Terephthalate)	Plastic	High	2.75 in.
PMMA - Clear (Acrylic)	Plastic	Low	2.75 in.
PP Homopolymer - Black (Polypropylene Homopoly)	Plastic	Low	1.75 in.
PP Homopolymer - Natural (Polypropylene Homopoly)	Plastic	Low	1.75 in.
PP Copolymer - Natural (Polypropylene Copoly)	Plastic	Low	3.75 in.
PPE + PS - Black (Noryl 265)	Plastic	High	1.75 in.
PPSU - Black (Radel R 5500)	Plastic	Very High	1.25 in.
PS (HIPS) - White (Polystyrene)	Plastic	Medium	1.75 in.
PSU - Natural (Polysulfone)	Plastic	Very High	1.75 in.
PTFE - White (Teflon)	Plastic	Very High	3.75 in.
PVC - Gray (PVC)	Plastic	Low	3.75 in.
UHMW - Natural (UHMW)	Plastic	Low	3.75 in.

Note that the primary advantage of the material choices available from Firstcut is that we offer the REAL materials that you’ll need for your REAL production parts. There is no longer any need to settle for something “almost” as good as ABS, Nylon or any other material you may require in production.