Materials Reliable material for every stage of the production cycle. AllMarkforgedMetal X Nylon White Filament Stronger, stiffer, and more reliable than our original Nylon material Learn More Onyx FR-A Filament Flame-retardant, carbon-fiber filled nylon that's aerospace-ready Learn More Carbon Fiber FR-A Filament A flame-retardant variant ready for aerospace Learn More Copper Filament High thermal and electrical conductivity Learn More Inconel 625 Filament Superalloy highly resistant to corrosion, high temps Learn More A2 Tool Steel Universal cold work steel Learn More Onyx FR Filament Flame-retardant, light weight, and high strength Learn More Onyx ESD Filament An ESD-safe onyx, static-dissipative, for on-demand tooling Learn More Onyx Filament Nylon mix with chopped carbon Learn More Precise PLA Plastic PLA (Polylactic Acid) Material Learn More ULTEM™ 9085 Filament Flame-retardant, high-performance material Learn More D2 Tool Steel High hardness and compressive strength steel Learn More Carbon Fiber Filament Aluminum strength—half the weight Learn More Kevlar Filament Lightweight, durable, and strong Learn More Fiberglass Filament Reinforced fiber strength Learn More HSHT Fiberglass Filament Strength at high temperatures Learn More H13 Tool Steel Optimized for high temperature and wear applications Learn More 17-4 PH Stainless Steel Manufacturing-ready metal, good for replacement parts Learn More