3NTR Carbon+


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PA filament reinforced with carbon fibers for strength, stiffness, and thermal and chemical resistance.

The additivization of polymers with carbon fibers is a very common practice in plastic compounding. The 3NTR Carbon+ filament uses this technology to achieve better mechanical strength, maximum stiffness and thermal resistance. The Carbon+ filament was manufactured by 3NTR, an Italian company specialized in industrial 3D printers and filaments.

In 3D printing, carbon fiber is normally added in the form of shreds, powder or nanoparticles as a coating or inside of the polymer in order to improve the mechanical properties of a filament. The result is 3D printed parts that are stiffer, more dimensionally stable and lighter. In case of polymers such as nylon, adding carbon fiber makes PA easier to 3D print since it improves its adhesion and reduces warping. The Carbon+ filament can be used together with a soluble support filament such as the 3NTR SSU09.

Parts 3D printed with the 3NTR Carbon+ filamentParts 3D printed with the 3NTR Carbon+ filament

Image 1: Parts 3D printed with the 3NTR Carbon+ filament. Source: 3NTR.

Nylon (polyamide) is a synthetic polymer characterized by great resistance and durability. It is one of the most widely used materials in technical FDM 3D printing, both for the manufacturing of prototypes and functional end parts. Nylon was discovered in the form of highly elastic and resistant fibers, and it revolutionized the textile industry. Ever since scientists found a way to use nylon as a solid, it has gained a lot of popularity across industries for its durability, resistance and elasticity allowing for the manufacturing of objects capable of cushioning shocks and impacts between parts and supporting loads. Some applications of nylon include fishing lines, guitar strings, food products, zips and screws but also surgical products and industrial machinery.

Parts 3D printed with the Carbon+ filament by 3NTR during and after removing the supportsParts 3D printed with the Carbon+ filament by 3NTR during and after removing the supports

Image 2: Parts 3D printed with the Carbon+ filament by 3NTR during and after removing the supports. Source: 3NTR.

The 3NTR Carbon+ filament is the right choice for applications where a durable structural component with high modulus, improved chemical and thermal resistance, excellent surface quality, great inter-layer strength and ease of printing is desired.

Elongation at break (%) 0.7
Tensile strength (MPa) 105
Tensile modulus (MPa) 8500
Flexural strength (MPa) 118.9
Flexural modulus (MPa) 29000
Softening temperature (ºC) 100
Abrasion resistance Abrasion resistance
UV resistance UV resistance
Lightweight Lightweight
Fiber reinforced Fiber reinforced
Chemical resistance Chemical resistance

There is no need for external adhesion improving products to be used with this filament. This is due to the fact that the 3NTR 3D printers, which this material is designed for, incorporate a carbon fiber base additivized with glass fiber to provide a highly adherent printing surface.

General information
Manufacturer 3NTR
Material PA
Format 850 g spool
Density (ISO 1183-1) 1.07 g/cm3
Diameter of filament 1.75 or 2.85 mm
Diameter tolerance -
Filament length ±330.3 m (Ø 1.75 mm - 0.85 Kg)
±124.5 m (Ø 2.85 mm - 0.85 Kg)
Color Black
RAL/Pantone  -
Print settings
Printing temperature -
Print bed temperature -
Chamber temperature -
Cooling fan -
Recommended printing speed -
Nozzle diameter -
Mechanical properties
Izod impact strength -
Charpy impact strength (ISO 179-1) 27.5 kJ/m(unnotched)
Elongation at break -
Tensile strength (ISO 527-2) 105 MPa
Tensile Modulus (ISO 527-2) 8500 MPa
Flexural strength (ISO 178) 118.9 MPa
Flexural modulus (ISO 178) 29000 MPa
Surface hardness -
Thermal properties
Softening temperature (ISO 75-2) 100 ºC
Melting temperature -
Volumetric resistance (IEC 60093) 100 Ohm/m
Surface resistance (IEC 60093) 50 Ohm
Specific properties
Transparency  -
Additional Information
HS Code 3916.9
Diameter coil (outer) -
Diameter coil (inner hole) -
Coil Width -

* The typical values detailed in this table should be considered as a reference. Actual values may vary depending on the 3D printer model used, part design and printing conditions. We recommend confirming the results and final properties with own tests. For more information you should consult the technical data sheet of the product.


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