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Composite and Metal 3D Printing Materials

The strongest 3D printing materials for any industrial applications.

Composites and Continuous Fiber

Markforged composite materials offer a unique combination of strength and surfact finish for a variety of applications, including end-use parts, prototypes, and lightweight tooling.


Onyx is a beautiful black filmaent that combines nylon with micro-carbon fibers. A filament that’s not only tougher than other 3D printing plastics— it’s also stiffer, more heat tolerant, and more dimensionally stable.

Carbon Fiber

Carbon fiber has the highest strength to weight as well as the highest thermal conductivity. Perfect for applications requiring the greatest possible stiffness and strength.


Fiberglass is the most cost-effective material. It’s as strong as Carbon Fiber, but 40% as stiff, and 2X the weight. Suited to everyday applications where you need strong parts.


Kevlar has the best abrasion resistance and is our most flexible material. For when you need parts that are durable and resistant to impact.

High Strength High Temp Fiberglass

High Strength, High Temperature (HSHT) Fiberglass is a material uniquely designed for users who need strong parts in higher temperature environments (over 105°C, with a heat deflection point of 150°C)


Markforged metal filaments combine the simplicity and safety of FFF printing with the superior properties of advanced metals, bringing metal 3D printing to your benchtop.

17-4 Stainless Steel

17-4 Stainless Steel combines high strength, corrosion resistance, and hardness, making it widely used in aerospace, medical and petroleum industries. 


Known for its high thermal and electrical conductivity, ductility, and machinability, copper is widely used in heat exchangers, as well as electrical and construction applications.

Inconel 625

Inconel 625 is a superalloy that is extremely resistant to corrosion and strong at high temperatures. It’s easy to print, enabling you to fabricate functional prototypes and end-use parts designed for harsh environments. 

H13 Tool Steel

Harder and more capable of maintaining material properties at high temperatures, H13 tool steel is an extremely versatile material to work with. Markforged H13 can be heat treated to 45 HRC with a UTS of 1500 MPa, and is used for tool bodies, brazing fixtures, and other parts where hardness or heat resistance are required.

A2 Tool Steel

 A2 tool steel is often regarded as a “universal” cold work steel, offering a combination of good wear resistance and high toughness. Both A2 and D2 can be used for cutting and forming tools, or other applications where high hardness are valued.

D2 Tool Steel

D2 tool steel is harder and more wear-resistant, but less tough. Both A2 and D2 can be used for cutting and forming tools, or other applications where high hardness are valued.


Chopped vs Continuous Composite Filaments

Ready to add a Markforged 3D printer to your workflow?

We’d love to see which printer would work the best for your business with you.