PAHT-CF
Carbon-Fiber-Reinforced High-Temperature Polyamide
5 products from 4 makers. Bambu Lab sells its own filament of this material for the H2C.
- Tensile modulus (XY)
- 8.39GPa
- 3 products · 3.86–8.62
- Tensile strength (XY)
- 103MPa
- 3 products · 92–123
- Tensile strength (Z)
- 37.9MPa
- 3 products · 18.2–47
- Notched Charpy impact
- 13.8kJ/m²
- 2 products · 4.8–22.8
- HDT at 0.45 MPa
- 170°C
- 2 products · 145–194
- Price
- 124CAD/kg
- one product
PAHT-CF is a carbon-fibre-filled high-temperature polyamide. A maker suggests it for functional prototypes, machining fixtures, injection moulds and jigs. Semicrystalline, it carries light load well above its glass transition, and its HDT at 0.45 MPa is 145–194 °C. Across the layers it keeps 31 % of its flat tensile strength, and on the H2C it needs a hardened nozzle and drying.
Partly documented Price rests on 1 product, notched Charpy impact and HDT at 0.45 MPa on 2 products each and tensile modulus (XY), tensile strength (XY) and tensile strength (Z) on 3 products each. Each figure is the median of the products that publish it comparably, and beside it the middle half of them; a value on a test bar no document describes as printed, or with no stated test load, is set apart, except a heat deflection of a plastic that cannot crystallise, which its glass transition sets, unless its document points to a moulded or resin bar.
On the H2C
Printing in full- Nozzle
- 265–290 °C
- most products that give one
- Bed
- 100 °C
- both that give one
- Heated chamber
- 45–60 °C
- one product
- Drying
- 80–130 °C, 4–16 h
- all 5 products call for it
- Nozzle type
- hardened
- 4 of 5 products' sheets ask for one; the Bambu Lab Filament Guide says hardened for 1 more
No product's setting is beyond the H2C's limits: nozzle 350 °C, bed 120 °C, heated chamber 65 °C.
Among the materials
Against PA6-CF, PAHT-CF is 92 % stiffer, 47 % stronger flat and 21 % weaker across the layers. Against PA6-GF, PAHT-CF is 93 % stiffer, 60 % tougher in notched impact and 38 % weaker across the layers. Among the materials, PAHT-CF has a high tensile modulus (XY), tensile strength (XY), tensile strength (Z), notched Charpy impact and HDT at 0.45 MPa, and a low elongation at break (XY): each is in the top or bottom quarter of the materials that publish it. Its density and price sit in the middle half.
Against its alternatives, PAHT-CF has the highest tensile modulus and the lowest tensile strength (Z)
How does it compare with what an engineer would buy instead?
- PAHT-CF: its products' median and middle half
- an alternative
- lowest to highest
- each material's median (top row)
- set apart: test bar not described as printed, or no stated load
- beyond the scale
Each row is a material, each column a property: the bar is the middle half of a material's products, the tick their median, the hairline their lowest to highest; the ticks above the rows are every material's median.
The figure as a table
| Material | Modulus (XY) (GPa) | Strength (XY) (MPa) | Strength (Z) (MPa) | Notched Charpy (kJ/m²) | HDT 0.45 MPa (°C) | Price (CAD/kg) |
|---|---|---|---|---|---|---|
| PAHT-CF (this material) | 8.39 · 3 | 103 · 3 | 37.9 · 3 | 13.8 · 2 | 170 · 2 | 124 · 1 |
| PA6-CF | 4.37 (4.09–4.61) · 6 | 70 (62.3–104) · 8 | 48 · 3 | 13.4 · 3 | 193 (185–202) · 6 | 130 (113–160) · 4 |
| PA6-GF | 4.35 (3.91–4.66) · 4 | 82.3 (76.3–87.9) · 6 | 60.7 · 3 | 8.6 · 2 | 186 (181–191) · 7 | 84 · 3 |
| PPA-CF | 7.65 (7.1–9.1) · 4 | 108 (103–123) · 4 | 57 · 1 | 6.5 · 1 | 220 (220–227) · 5 | 255 · 1 |
| Nylon-GF, maker-undisclosed polyamide | 2.82 · 2 | 59.9 · 2 | — | — | 152 · 1 | — |
| PA12-GF | 7.8 · 1 | 82 · 1 | — | 16 as published (1) | 150 · 1 | 247 · 1 |
Each cell is the median of the products ranked, its middle half in brackets, and how many.
Where PAHT-CF sits among the 128 rigid materials on file
Where is it in the landscape: stiffness against strength, heat resistance against price?
- PAHT-CF: median, middle half as a cross
- a PAHT-CF product
- an alternative
- another material
- beyond the scale
Tensile strength (XY) against tensile modulus (XY)
MPa, log scale
Tensile modulus (XY), GPa, log scale
HDT at 0.45 MPa against price
°C
Price, CAD/kg, log scale
Grey points are every other rigid material's medians; the alternatives are named.
The figure as a table
| Material | Tensile modulus (XY) | Tensile strength (XY) | Price | HDT at 0.45 MPa |
|---|---|---|---|---|
| PAHT-CF (this material) | 8.39 GPa · 3 | 103 MPa · 3 | 124 CAD/kg · 1 | 170 °C · 2 |
| PA6-CF | 4.37 GPa · 6 | 70 MPa · 8 | 130 CAD/kg · 4 | 193 °C · 6 |
| PA6-GF | 4.35 GPa · 4 | 82.3 MPa · 6 | 84 CAD/kg · 3 | 186 °C · 7 |
| PPA-CF | 7.65 GPa · 4 | 108 MPa · 4 | 255 CAD/kg · 1 | 220 °C · 5 |
| Nylon-GF, maker-undisclosed polyamide | 2.82 GPa · 2 | 59.9 MPa · 2 | — | 152 °C · 1 |
| PA12-GF | 7.8 GPa · 1 | 82 MPa · 1 | 247 CAD/kg · 1 | 150 °C · 1 |
Mechanical properties
Printed flat (XY), PAHT-CF typically reaches a tensile strength of 103 MPa at a modulus of 8.39 GPa, and breaks at 1.98 % elongation. In bending, its flexural strength is typically 161 MPa at a flexural modulus of 8.26 GPa.
| As each sheet publishes it | Bambu Lab PAHT-CF | BASF Forward AM Ultrafuse PAHT | LEHVOSS PA 9742 | LEHVOSS PAHT 9891 | iSANMATE PAHT CF |
|---|---|---|---|---|---|
| Tensile strength (XY) | 92 MPaafter annealing | 103 MPa | 170 MPanot described as printed | not published | 123 MPa |
| Tensile modulus (XY) | 3.86 GPaafter annealing | 8.39 GPa | 15 GPanot described as printed | not published | 8.62 GPa |
| Tensile strength (Z) | 47 MPaafter annealing | 18.2 MPaZ (ZX) | not published | not published | 37.9 MPa |
| Elongation at break (XY) | 8.4 %after annealing | 1.8 % | 1 %not described as printed | not published | 1.98 % |
| Notched Charpy impact | 22.8 kJ/m²after annealing | 4.8 kJ/m² | not published | not published | not published |
| Notched Izod impact | not published | 4.9 kJ/m² | not published | not published | not published |
| Shore D hardness | not published | 72 Shore D | not published | not published | not published |
Across the layers (Z), PAHT-CF keeps 31 % of its flat strength and 42 % of its flat stiffness
What does a printed part lose across the layers (Z) against flat (XY), and is that usual?
- a product
- measured after annealing
- equal share: 100, 75, 50 and 25 %
- PAHT-CF's median share
- an alternative
Tensile strength
Z keeps 31 % of XY, median of 3 products
flat (XY), MPa
Share kept: PA6-GF 73 % · PA6-CF 49 % · PPA-CF 34 % · PAHT-CF 31 %
Tensile modulus
Z keeps 42 % of XY, median of 3 products
flat (XY), GPa
Share kept: PA6-GF 68 % · PA6-CF 46 % · PAHT-CF 42 % · PPA-CF 36 %
Elongation at break
Z keeps 49 % of XY, median of 3 products
flat (XY), %, log scale on both axes
Share kept: PA6-GF 85 % · PA6-CF 77 % · PAHT-CF 49 % · PPA-CF 28 %
Each point is a product that publishes both from one sheet: below the 100 % ray it keeps less across the layers than flat. Under each plot, the median share its alternatives' products keep.
The figure as a table
| Product | Property | Flat (XY) | Across (Z) | Z as a share of XY |
|---|---|---|---|---|
| Bambu Lab PAHT-CF | Tensile strength | 92 MPa | 47 MPa | 51 % |
| BASF Forward AM Ultrafuse PAHT CF15 | Tensile strength | 103 MPa | 18.2 MPa, Z (ZX) | 18 % |
| iSANMATE PAHT CF | Tensile strength | 123 MPa | 37.9 MPa | 31 % |
| Bambu Lab PAHT-CF | Tensile modulus | 3.86 GPa | 2.18 GPa | 56 % |
| BASF Forward AM Ultrafuse PAHT CF15 | Tensile modulus | 8.39 GPa | 3.53 GPa, Z (ZX) | 42 % |
| iSANMATE PAHT CF | Tensile modulus | 8.62 GPa | 2.75 GPa | 32 % |
| Bambu Lab PAHT-CF | Elongation at break | 8.4 % | 4.1 % | 49 % |
| BASF Forward AM Ultrafuse PAHT CF15 | Elongation at break | 1.8 % | 0.5 %, Z (ZX) | 28 % |
| iSANMATE PAHT CF | Elongation at break | 1.98 % | 1.6 % | 81 % |
| PA6-CF (alternative) | Tensile strength | 49 % · 3 | ||
| PA6-GF (alternative) | Tensile strength | 73 % · 3 | ||
| PPA-CF (alternative) | Tensile strength | 34 % · 1 | ||
| PA6-CF (alternative) | Tensile modulus | 46 % · 2 | ||
| PA6-GF (alternative) | Tensile modulus | 68 % · 3 | ||
| PPA-CF (alternative) | Tensile modulus | 36 % · 1 | ||
| PA6-CF (alternative) | Elongation at break | 77 % · 2 | ||
| PA6-GF (alternative) | Elongation at break | 85 % · 3 | ||
| PPA-CF (alternative) | Elongation at break | 28 % · 1 |
Flat and across the layers, property by property
Flat and across the layers
| Property | Printed flat (XY) | Across the layers (Z) | Z as a share of XY | ||
|---|---|---|---|---|---|
| Median | Products | Median | Products | ||
| Tensile strength MPa | 103 | 3 | 37.9 | 3 | 31 %3 products |
| Tensile modulus GPa | 8.39 | 3 | 2.75 | 3 | 42 %3 products |
| Elongation at break % | 1.98 | 3 | 1.6 | 3 | 49 %3 products |
| Flexural strength MPa | 161 | 3 | 66.8 | 2 | 43 %2 products |
| Flexural modulus GPa | 8.26 | 3 | 2.32 | 2 | 38 %2 products |
The middle half of the products under each median. The share is each product's Z value as a part of its XY value, from one sheet and one state, and the median of those shares. How XY and Z differ.
Thermal properties
Its products put HDT at 145–194 °C under 0.45 MPa and 92–170 °C under 1.8 MPa, against a glass transition of 70 °C. Semicrystalline, it carries light load well above its glass transition. As published, Vicat softening is typically 216 °C and melting typically 230 °C.
| As each sheet publishes it | Bambu Lab PAHT-CF | BASF Forward AM Ultrafuse PAHT | LEHVOSS PA 9742 | LEHVOSS PAHT 9891 | iSANMATE PAHT CF |
|---|---|---|---|---|---|
| HDT at 0.45 MPa | 194 °Cafter annealing | 145 °C | not published | not published | not published |
| HDT at 1.8 MPa | 170 °Cafter annealing | 92 °C | 200 °Cnot described as printed | not published | not published |
| Glass transition (Tg) | 70 °Cafter annealing | 70 °C | not published | not published | not published |
Printing on the H2C
PAHT-CF prints within the H2C's limits and softens near 170 °C, above its 65 °C chamber
What does printing it on the H2C take, and how hot can a part get?
- share of the products that accept each temperature
- what most products accept
- one end given ("at least")
- the H2C's limit, and beyond it
- a product
- PAHT-CF: its products' median and middle half
- as published, under each sheet's own test
Printing it on the H2C
In service
°C
One temperature axis for the settings a print needs and the temperatures a part meets. A setting's shade is how many of the products whose sheets give a window accept each degree; the H2C's limit closes its row.
The figure as a table
| Setting or property | Most products, or the median | Products | H2C limit |
|---|---|---|---|
| Nozzle | 265–290 °C | 5 | 350 °C |
| Bed | 80–100 °C; 100–120 °C | 2 | 120 °C |
| Heated chamber | 45–60 °C | 1 | 65 °C |
| Drying | 80–130 °C, 4–16 h | 4 | — |
| Glass transition (Tg) | 70 °C | 2 | — |
| HDT at 1.8 MPa | 131 °C | 2 | — |
| HDT at 0.45 MPa | 170 °C | 2 | — |
| Vicat softening temperature | 192–221 °C | 2 | — |
| Melting temperature | 225–234 °C | 2 | — |
Windows read from the Bambu Lab Filament Guide are not shaded: the guide speaks for every product that reads it.
| Setting | Bambu Lab PAHT-CF | BASF Forward AM Ultrafuse PAHT | LEHVOSS PA 9742 | LEHVOSS PAHT 9891 | iSANMATE PAHT CF |
|---|---|---|---|---|---|
| Nozzle | 260–290 °C | 260–280 °C | 265–290 °C | 265–290 °C | 280–310 °C |
| Bed | 80–100 °C | 100–120 °C | at least 50 °C | at least 50 °C | 100–120 °C |
| Heated chamber | 45–60 °C | enclosure needed, no temperature | enclosure needed, no temperature | enclosure needed, no temperature | enclosure needed, no temperature |
| Drying | 80 °C for 8–12 h | 80 °C for 4–16 h | 130 °C for 6–8 h | 120 °C for 4–6 h | 80 °C for 8–12 h |
| Nozzle type | hardened | hardened | hardened | hardened | hardened |
In grey, a setting a product reads from a data sheet it shares or from the Bambu Lab Filament Guide, where its own sheet is silent.
After printing
Two products publish values measured after annealing, on schedules from 80 °C for 12 h to 90 °C for 2 h.
The annealing process can lead to a minor deviation in the dimensional accuracy.
BASF Forward AM Ultrafuse PAHT CF15, data sheet, p. 4the suggested annealing temperature of models printed with Bambu PAHT-CF is 80 to 130 °C, and the time is 6 to 12 hours.
Bambu Lab PAHT-CF, data sheet, p. 3
What makers say about printing it
Moisture sensitivity
Ultrafuse® PAHT CF15 filament should be stored at 15 - 25°C in its originally sealed package in a clean and dry environment.
BASF Forward AM Ultrafuse PAHT CF15, data sheet, p. 1
Nozzle wear
Nozzle Diameter ≥ 0,6 mm, hardened
BASF Forward AM Ultrafuse PAHT CF15, data sheet, p. 3
More from makers: supports and removal, printing advice, warping and shrinkage, adhesion between layers and odour and emissions
Supports and removal
When printing a model with support, we recommend removing the support structures within 2 hours after printing to prevent them from sticking after absorbing moisture. If sticking occurs, dry the model to ease the removal.
Bambu Lab PAHT-CF, maker's product page or guide, p. 1
Printing advice
Fix larger parts to avoid potential deformation during the annealing process.
BASF Forward AM Ultrafuse PAHT CF15, data sheet, p. 4
Warping and shrinkage
No warping.
LEHVOSS LUVOCOM 3F PA CF 9742 BK, data sheet, p. 1
Adhesion between layers
It is easy to print, has enhanced Z-bonding, a high-degree of dimensional stability, and has been optimized to retain excellent mechanical properties when wet.
Bambu Lab PAHT-CF, data sheet, p. 1
Odour and emissions
Recommended: Process materials in a well ventilated room, or use professional extraction systems.
BASF Forward AM Ultrafuse PAHT CF15, data sheet, p. 1
Products
5 products from 4 makers; the most from LEHVOSS (2).
Uses, limitations and chemicals
What it is sold for
Suggested uses are: functional prototypes, machining fixtures, injection molds, jigs, and low-volume production parts.
Bambu Lab PAHT-CF, data sheet, p. 1ideal for high-performance engineering and replacing automotive parts.
iSANMATE PAHT CF, data sheet, p. 1Ultrafuse® PAHT CF15 is a high-performance 3D printing filament that opens new application fields in FFF printing.
BASF Forward AM Ultrafuse PAHT CF15, data sheet, p. 1
What makers warn about
As this filament contains highly hygroscopic wood fibers, please place any unused filament in a sealed container with desiccant immediately, and dry thoroughly before printing.
Bambu Lab PAHT-CF, maker's product page or guide, p. 1
Finish and accuracy
Industrial-grade accuracy: Ensures prototypes match drawings
iSANMATE PAHT CF, data sheet, p. 1
Chemicals and environment
| Exposure | What makers say |
|---|---|
| Water solubility | Insoluble, in its one statement |
| Acid resistance | Not resistant, in its one statement |
| Alkali resistance | Not resistant, in its one statement |
| Organic solvent resistance | Limited, in its one statement |
| Oil and grease resistance | Limited, in its one statement |
| Flammability | Flammable, in its one statement |
Makers rarely give the concentration, temperature or duration: treat them as indications, not design data. Each product's statements are on its card.
Density and price
Its three products give a density of 1,060–1,250 kg/m³. One product has a sampled price: Bambu Lab PAHT-CF at 124 CAD/kg.
| As each sheet publishes it | Bambu Lab PAHT-CF | BASF Forward AM Ultrafuse PAHT | LEHVOSS PA 9742 | LEHVOSS PAHT 9891 | iSANMATE PAHT CF |
|---|---|---|---|---|---|
| Density | 1,060 kg/m³after annealing | not published | 1,250 kg/m³ | 1,240 kg/m³ | not published |
| Price | 124 CAD/kg | not published | not published | not published | not published |
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.
The 13 properties, lowest to highest
| Property | Products | Lowest–highest |
|---|---|---|
| Fibre content | 4 | 12–20 % |
| Water absorption | 3 | 0.3–0.88 % |
| Continuous service temperature | 2 | 120–150 °C |
| Crystallization temperature | 2 | 140–180 °C |
| Melt mass-flow rate | 2 | 4–14.4 g/10 min |
| Melt volume-flow rate | 2 | 3–42.2 cm³/10 min |
| Surface resistivity | 2 | 100 Ω |
| Tensile strain at strength | 2 | 1–2 % |
| Flexural elongation at break | 1 | 1.8–4 % |
| Hardness | 1 | 72 Shore (scale not specified by source) |
| Impact strength, test unclear | 1 | 62.3 kJ/m² |
| Mould shrinkage | 1 | 0–0.1 % |
| Poisson's ratio | 1 | 0.44 |
Sources
12 documents from 5 publishers (6 data sheets, 4 makers' product pages and guides, 1 safety data sheet and 1 printer document), read 10 Sep–19 Oct 2026. Each value on PAHT-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 5 products.
The Bambu Lab Filament Guide (print settings per material type): read for 5 products whose own sheets are silent.
Every document (12), by publisher
| Publisher | Documents | Values | Products |
|---|---|---|---|
| Bambu Lab | 4 | 24 | 1 |
| BASF Forward AM | 2 | 137 | 1 |
| LEHVOSS | 2 | 14 | 2 |
| 3D4Makers | 1 | 11 | 1 |
| iSANMATE | 1 | 10 | 1 |
- 3D4Makers, LUVOCOM 3F PAHT® CF 9742 BK
- Bambu Lab, Bambu Filament Technical Data Sheet - PAHT-CF
- Bambu Lab, Bambu Lab Filament Guide
- Bambu Lab, Bambu Lab PAHT-CF safety data sheet
- Bambu Lab, H2C Filamant Printing Guide | Bambu Lab Wiki
- Bambu Lab, PA6-GF official maker product page
- Bambu Lab, PAHT-CF official maker product page
- BASF Forward AM, Technical Data Sheet for Ultrafuse PAHT CF15
- BASF Forward AM, Ultrafuse PAHT CF15 Extended TDS: Complete Technical Documentation and Testing Summary
- iSANMATE, PAHT CF Filament Technical Data Sheet
- LEHVOSS, LUVOCOM-3F | LEHVOSS Compounds
- LEHVOSS, PRELIMINARY DATASHEET LUVOCOM 3F PAHT CF 9891 BK