MAterials
Industrial-grade 3D printing materials engineered for Markforged printers.

METAL
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 PH STAINLESS STEEL
17-4PH Stainless Steel is a multipurpose steel used for industrial applications. Heat-treatable to 36 HRC and possessing 95% wrought strength, Markforged 17-4PH enables you to print high-strength, robust metal parts for a wide variety of applications.
Applications:
- End-of-Arm Tools
- Lightweight Brackets
- General High-Wear Tooling
- Functional Prototypes
- Custom Wrenches & Sockets
COPPER
Pure copper conducts heat and electricity far better than traditional metals. Markforged Copper possesses better conductivity characteristics than alloyed copper that can be printed on DMLS machines. Unlike conventional fabrication processes which are extremely labor intensive and expensive, Markforged Copper is extremely simple to 3D print.
Applications:
- Welding Shanks
- Induction Coils
- Heatsinks
- Bus Bars
- Custom Fittings, Adapters, and EDM Electrodes
INCONEL 625
Inconel 625 is a nickel-chromium based 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. Markforged Inconel 625 meets chemical requirements of ASTM B443 and maintains a UTS of 500 MPa at 600 ºC.
Applications:
- High-Temperature Fixtures
- Corrosion-Resistant Fittings
- Crucibles
- Turbine Hardware
H13 TOOL STEEL
Harder than 17-4 PH Stainless Steel and 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 by Markforged customers for tool bodies, brazing fixtures, and other parts where hardness or heat resistance are required.
Applications:
- Cutting Tool Bodies
- Brazing Fixtures
- Mold Inserts
- Wear-Resistant Tools
- High-Strength Parts
A2 & D2 TOOL STEEL
A2 and D2 are cold work tool steels defined by their extremely high hardness after heat treatment. A2 tool steel is often regarded as a “universal” cold work steel, offering a combination of good wear resistance and high toughness. D2 tool steel is harder and more wear-resistant, but less tough. Both can be used for cutting and forming tools, or other applications where high hardness are valued.
Applications:
- Forming Tools
- Stamping Dies
- Punch Dies

PLASTIC
Composite Base filaments are engineering-grade materials that print using a conventional FFF (FDM-style) process. Print with them alone or with Continuous Fibers to yield strong parts. The ULTEM™ and 9085 trademarks are used under license from SABIC, its affiliates or subsidiaries.
ONYX™
Onyx™ — our flagship Composite Base material — is a micro carbon fiber filled nylon that yields accurate parts with near flawless surface finish. Few materials have the versatility of Onyx; it offers high strength, toughness, and chemical resistance when printed alone, and can be reinforced with Continuous Fibers to yield aluminum-strength parts. Today, there are more than a million Onyx parts in the field transforming manufacturing.
Applications:
- Plastic Part Replacement
- Housings
- Sensor Mounts
- Cosmetic Prototypes
ONYX FR™
Onyx FR is a flame-retardant variant of Onyx designed for use in applications where parts must be non-flammable. The material earned a UL Blue Card, and is considered V-0 (self extinguishing) at thicknesses greater than or equal to 3mm. It can be reinforced with any Continuous Fiber and is compatible with industrial composite 3D printers.
Applications:
- Weld Fixturing
- Aerospace Clips & Brackets
- Laser Marking Fixtures
- Energy/Electrical Brackets & Fixtures
ONYX ESD™
Onyx ESD is a static-dissipative chopped carbon fiber nylon material, precision-engineered for a tight range of surface resistance. Onyx ESD meets ESD-safe requirements of the most stringent manufacturers, while offering the same industry-leading print quality of Onyx. Onyx ESD is stronger and stiffer than Onyx, with the same near perfect surface finish, making it suitable for advanced manufacturing applications from electronics assembly to industrial robotics and process automation.
Applications:
- Vacuum Grippers
- Transfer Tools
- Pick and Place
- Transfer and Packaging Trays
- Electronics Enclosures
ULTEM™ 9085 FILAMENT
ULTEM™ 9085 Filament is Markforged’s first high temperature printing polymer. It’s an extremely durable thermoplastic that exhibits excellent flame, smoke, and toxicity (FST) characteristics. Usable in production aerospace applications, ULTEM™ Filament brings Markforged’s CFR technology to a new realm of parts. ULTEM™ Filament is available in Markforged’s new 3200cc XL spool — four times larger than our standard spools.
Applications:
- High Temperature Tooling
- Aircraft Interior Paneling
- Aircraft Brackets, Handles, and Knobs
- Custom Ducting
- Composite Molds and Layup Tools
SMOOTH TPU 95A
Smooth TPU 95A is a rubber-like material that when used with Markforged composite printers offers product developers and manufacturers the ability to create flexible, impact-absorbent parts on demand.
Applications:
- Seals and gaskets
- Shock absorbers
- Protective coverings
- Straps, bands, and drive belts
- Non-marring work holding and grips
- Wheels and treads
PRECISE PLA
Precise PLA is our easy-to-print plastic for precision concept modeling and validation. Based on the most common 3D printing prototyping material, Precise PLA 3D prints without warping and comes in a variety of colors. Best of all, it’s affordable. So you can use as much as you need to fine-tune your designs before implementation.
Applications:
- Part prototypes
- Fit checks
- Color coded indicators
NYLON
Nylon is an unfilled thermoplastic. It’s a non-abrasive material that is great for ergonomic surfaces and workholding for pieces that are easily marred. It can be painted or dyed.
Applications:
- Ergonomic Tools
- Assembly Trays
- Cosmetic Parts
CONTINUOUS FIBER
Continuous Fibers enable Markforged composite printers to print metal-strength parts. They cannot be used alone — however, when printed with a Composite Base, they form the backbone of a strong printed part.
CARBON FIBER
Carbon Fiber is Markforged’s unique, ultra-high-strength Continuous Fiber — when laid into a Composite Base material like Onyx, it can yield parts as strong as 6061-T6 Aluminum. It’s extremely stiff and strong, and can be automatically laid down in a wide variety of geometries by Markforged 3D printers. A special Carbon Fiber variant is compatible with ULTEM™ 9085 Filament.
Applications:
- High-Strength Tools & Fixtures
- Brackets & Mounts
- Inspection/CMM Fixturing
- Bespoke End-Use Parts
- Functional Prototypes
CARBON FIBER FR
Carbon Fiber FR is a flame-retardant variant of Markforged’s unique, ultra-high-strength Continuous Carbon Fiber — when used to reinforce a Composite Base material like Onyx FR, it can yield parts as strong as 6061-T6 Aluminum. It’s extremely stiff and strong, and can be precisely laid down in a wide variety of geometries. Programmatically trace curved features, reinforce holes, and mimic unidirectional fiber layups — all within a few clicks.
Applications:
- Cabin Components
- Brackets & Mounts
- MRO & Spare Parts
- End-Use Parts
- Functional Prototypes
ARAMID FIBER (KEVLAR®)
Aramid Fiber is a Kevlar® based, specialized Continuous Fiber known for its energy absorption and extreme toughness. When laid into Onyx or another Composite Base material, it yields impact-resistant parts that are nearly immune to catastrophic failure (fracture). It’s perfect for use in parts that are in demanding environments or are subject to repetitive loading.
Applications:
- End-of-Arm Tooling
- Stanchions, Cradles, & Supports
- Delrin® Part Replacements
- Wear Stops
FIBERGLASS
Inexpensive and 11 times stiffer than ABS, this is the perfect entry level continuous fiber for 3D printing functional parts.
Applications
- Workholding tools
- Functional Prototypes
- Moderate strength end-use parts