PA6-CF

Among the materials

Against PA6-GF, PA6-CF is 56 % tougher in notched impact, 55 % more expensive and 21 % weaker across the layers. Against PPA-CF, PA6-CF is 43 % less stiff and 35 % weaker flat, and its HDT at 0.45 MPa is 27 °C lower. Among the materials, PA6-CF has a high tensile modulus (XY), tensile strength (XY), tensile strength (Z) and HDT at 0.45 MPa: each is in the top quarter of the materials that publish it. The rest of its key properties sit in the middle half.

Mechanical properties

Printed flat (XY), PA6-CF typically reaches a tensile strength of 70 MPa at a modulus of 4.37 GPa, and breaks at 6 % elongation. In bending, its flexural strength is typically 146 MPa at a flexural modulus of 5.18 GPa.

In grey, a value a product reads from a data sheet it shares, where its own sheet is silent.

Thermal properties

PA6-CF's HDT is typically 193 °C under 0.45 MPa and 164⁠–⁠173 °C under 1.8 MPa, with its glass transition typically at 67 °C. Semicrystalline, it carries light load well above its glass transition. As published, Vicat softening is typically 193 °C and melting typically 219 °C.

In grey, a value a product reads from a data sheet it shares, where its own sheet is silent.

Printing on the H2C

Where a product's own sheet is silent, its setting comes from a sheet it shares or from the Bambu Lab Filament Guide; each product's card says which.

After printing

Two products publish values measured after annealing, on schedules from 80 °C for 12 h to 100 °C for 16 h.

• Moisture conditioning refers to allowing the print to absorb moisture. This is inevitble since nylons are hygroscopic, but you can expedite the process by keeping the print in a high humidity climate, or submerging them in water, for 48 hours. All of our test specimens were annealed at 100˚C for 16 hours, and then immerged in water at 60˚C for 48 hours. The average moisture content of specimens is 2.57%. Polymaker FIBERON PA6 CF20, maker's product page or guide, p. 1
• the suggested annealing temperature of models printed with Bambu PA6-CF is 80 to 130 °C, and the time is 6 to 12 hours. Bambu Lab PA6-CF, data sheet, p. 3
• Annealing temp. and time 100 °C/16H Polymaker FIBERON PA6 CF20, data sheet, p. 1

What makers say about printing it

Products

14 products from 13 makers; the most from Spectrum (2).

• Most documented: Bambu Lab PA6-CF, and 1 other that publishes as much.
• Highest tensile strength (XY): SUNLU PA6-CF, 112 MPa.
• Highest tensile strength (Z): Polymaker FIBERON PA6 CF20, 54 MPa, measured after annealing at 100 °C for 16 h.
• Keeps the most strength across the layers: Eryone PA6-CF, 89 % of its flat tensile strength (the median product keeps 49 %).
• Highest HDT at 0.45 MPa: Polymaker FIBERON PA6 CF20, 215 °C, measured after annealing at 100 °C for 16 h.
• Highest notched Charpy impact: Eryone PA6-CF, 21.3 kJ/m².
• Lowest price: Bambu Lab PA6-CF, 110 CAD/kg.

These are published values, not recommendations: the selector judges each product against your requirements.

Compare the 14 products

Uses, limitations and chemicals

What it is sold for

• Similar to other Bambu CF Filaments, these outstanding mechanical properties make it an ideal choice for printing fixtures, clamps, automotive and mechanical components and various structural and engineering parts that used in dry environments. Bambu Lab PA6-CF, data sheet, p. 1
• With excellent heat resistance up to 185°C and outstanding mechanical properties, it combines high strength, high rigidity, and excellent high-temperature resistance, making it suitable for printing products such as automotive structural components and sports equipment. Eryone PA6-CF, data sheet, p. 1
• This FFF filament is ideal for mechanical parts which require shock absorbing capabilities and good thermal resistance up to 100 °C. Nanovia PA-6 CF, data sheet, p. 1

What makers warn about

• DuraPro PA6 CF offers notably higher impact resistance than DuraPro PA12 CF, including no-break performance in unnotched testing. However, it absorbs significantly more moisture (9% vs. 1.6% at saturation), meaning it requires more careful storage and drying to maintain performance. DuraPro PA6 CF is also not electrically insulating, unlike DuraPro PA12, due to its carbon fiber content. Extrudr DURAPRO PA6 CF, maker's product page or guide, p.1

Chemicals and environment

Makers rarely give the concentration, temperature or duration: treat them as indications, not design data. Each product's statements are on its card.

Resin reference data (for plain PA6, where no maker of these products speaks): it has limited resistance to steam, 100 °C and to water or aqueous solutions at high temperature; it is not resistant to steam sterilization, 134 °C, over 50 cycles (DIN 58946 parts 1-5). Fillers, pigments and printing change this, so it does not stand for these products.

Density and price

PA6-CF's density is typically 1,180 kg/m³, the middle half 1,160⁠–⁠1,200 kg/m³, across 14 products. PA6-CF typically costs 130 CAD/kg, the middle half 113⁠–⁠160 CAD/kg, across the 4 products with a regular price in the sample; the lowest is Bambu Lab PA6-CF at 110 CAD/kg.

Regular prices, never sale prices, from 9 Canadian shops and 10 foreign shops, sampled 10 Sep–20 Oct 2026, not live; shipping and tax are not included.

Other properties, as published

13 more properties are published, each under its own sheet's test conditions, so they are listed, not ranked.

Sources

28 documents from 13 publishers (15 data sheets, 9 makers' product pages and guides, 3 safety data sheets and 1 printer document), read 10 Sep–19 Oct 2026. Each value on PA6-CF's Products page names its document and page, and links to the original.

Bambu Lab, H2C Filamant Printing Guide (the H2C's printer guide): print settings for 13 products.

The Bambu Lab Filament Guide (print settings per material type): read for 9 products whose own sheets are silent.