PA612-CF
Carbon-Fiber-Reinforced Polyamide 612
3 products from 3 makers. Bambu Lab does not list this material for the H2C; its published process temperatures are within the printer's limits.
- Tensile modulus (XY)
- 5.01GPa
- 2 products · 4.88–5.14
- Tensile strength (XY)
- 84.4MPa
- 2 products · 77–91.9
- Tensile strength (Z)
- 43.5MPa
- 2 products · 38.6–48.3
- Notched Charpy impact
- 9.05kJ/m²
- 2 products · 8.1–10
- HDT at 0.45 MPa
- 136°C
- 3 products · 110–175
- Price
- 170CAD/kg
- 2 products · 98–242
PA612-CF is a carbon-fibre-filled polyamide 612 nylon. Makers sell it for jigs, fixtures and end-use components in automotive, aerospace and robotics, citing dimensional stability. Its HDT at 0.45 MPa is 110–175 °C, and across the layers it keeps 51 % of its flat tensile strength. On the H2C it prints without chamber heat, but needs a hardened nozzle and drying.
Thinly documented Three products, with values from three makers' documents: Polymaker's, Raise3D's and QIDI's. Read each figure as a few sheets' word.
On the H2C
Printing in full- Nozzle
- 260–300 °C
- most products that give one
- Bed
- 40–50 °C
- most products that give one
- Heated chamber
- none needed
- 1 of 3 products
- Drying
- 80–100 °C, 4–12 h
- 2 of 3 products call for it; 1 more gives it as optional
- Nozzle type
- hardened
- all 3 products' sheets ask for one
No product's setting is beyond the H2C's limits: nozzle 350 °C, bed 120 °C, heated chamber 65 °C.
Among the materials
Against PA12-CF, PA612-CF is 45 % less tough in notched impact, 51 % stiffer and 31 % stronger across the layers. Against PC-CF, PA612-CF is 21 % stronger flat and 8 % stiffer, and its HDT at 0.45 MPa is 8 °C higher. Among the materials, PA612-CF has a high tensile modulus (XY), tensile strength (XY), tensile strength (Z) and price, and a low elongation at break (XY) and density: each is in the top or bottom quarter of the materials that publish it. Its notched Charpy impact and HDT at 0.45 MPa sit in the middle half.
Against its alternatives, PA612-CF has the highest tensile strength
How does it compare with what an engineer would buy instead?
- PA612-CF: its products' median and middle half
- an alternative
- lowest to highest
- each material's median (top row)
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) |
|---|---|---|---|---|---|---|
| PA612-CF (this material) | 5.01 · 2 | 84.4 · 2 | 43.5 · 2 | 9.05 · 2 | 136 · 3 | 170 · 2 |
| PA12-CF | 3.31 (1.97–8) · 5 | 65 (48.5–79.5) · 8 | 33.1 · 2 | 16.3 (13.7–17.8) · 4 | 131 (111–160) · 7 | 300 · 1 |
| PC-CF | 4.65 (2.98–6.39) · 4 | 70 (64–72) · 5 | — | 12 · 1 | 128 (120–136) · 4 | 152 · 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 |
| PC-GF | 2.67 · 1 | 38 · 2 | 20.6 · 2 | 6.1 · 1 | 134 · 1 | 53 · 1 |
| PP-CF | 6.15 · 3 | 41 · 3 | — | 9 · 2 | 141 · 2 | 147 · 1 |
Each cell is the median of the products ranked, its middle half in brackets, and how many.
Mechanical properties
Printed flat (XY), PA612-CF typically reaches a tensile strength of 84.4 MPa at a modulus of 5.01 GPa, and breaks at 3.11 % elongation. In bending, its flexural strength is typically 126 MPa at a flexural modulus of 4.25 GPa.
| As each sheet publishes it | Polymaker Fiberon PA612-CF15 | QIDI PA612-CF | Raise3D Industrial PA12 |
|---|---|---|---|
| Tensile strength (XY) | 91.9 MPaafter annealing | 77 MPa | not published |
| Tensile modulus (XY) | 5.14 GPaafter annealing | 4.88 GPa | not published |
| Tensile strength (Z) | 48.3 MPaafter annealing | 38.6 MPa | not published |
| Elongation at break (XY) | 2.6 %after annealing | 3.62 % | not published |
| Notched Charpy impact | 8.1 kJ/m²after annealing | 10 kJ/m² | not published |
Across the layers (Z), PA612-CF keeps 51 % of its flat strength and 57 % 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 %
- PA612-CF's median share
- an alternative
Tensile strength
Z keeps 51 % of XY, median of 2 products
flat (XY), MPa
Share kept: PC-GF 53 % · PA612-CF 51 % · PA6-CF 49 % · PA12-CF 46 %
Tensile modulus
Z keeps 57 % of XY, median of 2 products
flat (XY), GPa
Share kept: PA612-CF 57 % · PA12-CF 55 % · PA6-CF 46 % · PC-GF 46 %
Elongation at break
Z keeps 63 % of XY, median of 2 products
flat (XY), %
Share kept: PA12-CF 106 % · PA6-CF 77 % · PA612-CF 63 % · PC-GF 62 %
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 |
|---|---|---|---|---|
| Polymaker Fiberon PA612-CF15 | Tensile strength | 91.9 MPa | 48.3 MPa | 53 % |
| QIDI PA612-CF | Tensile strength | 77 MPa | 38.6 MPa | 50 % |
| Polymaker Fiberon PA612-CF15 | Tensile modulus | 5.14 GPa | 2.79 GPa | 54 % |
| QIDI PA612-CF | Tensile modulus | 4.88 GPa | 2.89 GPa | 59 % |
| Polymaker Fiberon PA612-CF15 | Elongation at break | 2.6 % | 2.1 % | 81 % |
| QIDI PA612-CF | Elongation at break | 3.62 % | 1.63 % | 45 % |
| PA12-CF (alternative) | Tensile strength | 46 % · 2 | ||
| PA6-CF (alternative) | Tensile strength | 49 % · 3 | ||
| PC-GF (alternative) | Tensile strength | 53 % · 2 | ||
| PA12-CF (alternative) | Tensile modulus | 55 % · 1 | ||
| PA6-CF (alternative) | Tensile modulus | 46 % · 2 | ||
| PC-GF (alternative) | Tensile modulus | 46 % · 1 | ||
| PA12-CF (alternative) | Elongation at break | 106 % · 2 | ||
| PA6-CF (alternative) | Elongation at break | 77 % · 2 | ||
| PC-GF (alternative) | Elongation at break | 62 % · 2 |
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 | 84.4 | 2 | 43.5 | 2 | 51 %2 products |
| Tensile modulus GPa | 5.01 | 2 | 2.84 | 2 | 57 %2 products |
| Elongation at break % | 3.11 | 2 | 1.86 | 2 | 63 %2 products |
| Flexural strength MPa | 126 | 2 | 73.5 | 1 | 53 %1 product |
| Flexural modulus GPa | 4.25 | 2 | 2.26 | 1 | 49 %1 product |
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 110–175 °C under 0.45 MPa and 78.4–114 °C under 1.8 MPa. As published, melting is typically 189 °C and Vicat softening 206 °C, from one product.
| As each sheet publishes it | Polymaker Fiberon PA612-CF15 | QIDI PA612-CF | Raise3D Industrial PA12 |
|---|---|---|---|
| HDT at 0.45 MPa | 175 °C | 136 °C | 110 °C |
| HDT at 1.8 MPa | 114 °C | 78 °C | 90 °C |
Not published for PA612-CF: the glass transition.
Printing on the H2C
PA612-CF prints within the H2C's limits and softens near 136 °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
- the H2C's limit, and beyond it
- a product
- PA612-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 | 260–300 °C | 3 | 350 °C |
| Bed | 40–50 °C | 3 | 120 °C |
| Heated chamber | — | 0 | 65 °C |
| Drying | 80–100 °C, 4–12 h | 3 | — |
| HDT at 1.8 MPa | 90 °C | 3 | — |
| HDT at 0.45 MPa | 136 °C | 3 | — |
| Melting temperature | 167–210 °C | 2 | — |
| Vicat softening temperature | 206 °C | 1 | — |
No PA612-CF product gives a heated chamber window. Windows read from the Bambu Lab Filament Guide are not shaded: the guide speaks for every product that reads it.
| Setting | Polymaker Fiberon PA612-CF15 | QIDI PA612-CF | Raise3D Industrial PA12 |
|---|---|---|---|
| Nozzle | 250–300 °C | 280–300 °C | 260–290 °C |
| Bed | 40–50 °C | 40–70 °C | 60 °C |
| Heated chamber | none needed | not published | not published |
| Drying | 100 °C for 10 h | optional: 80–100 °C for 4–6 h | 80 °C for 12 h |
| Nozzle type | hardened | hardened | hardened |
After printing
Three products publish values measured after annealing, on schedules from 80 °C for 12 h to 100 °C for 8 h.
After printing, it is recommended to anneal the model with support structure in the oven at 80-100°C for 8-12 hours.
Raise3D Industrial PA12 CF+, maker's product page or guide, p. 1Moisture 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 PA612-CF15, maker's product page or guide, p. 1After the printing is completed, the printed part can be annealed to further improve the strength of print part.
QIDI PA612-CF, data sheet, p. 4
What makers say about printing it
Warping and shrinkage
After annealing, max. 0.4%-dimensional shrinkage could be observed in Z-axis depending on infill and layer height, no significant dimensional shrinkage in XY-axis.
Raise3D Industrial PA12 CF+, data sheet, p. 3
Moisture sensitivity
Dry PA12 CF+ at 80°C for 12 hours before printing, moisture content is crucial for final printed partquality.
Raise3D Industrial PA12 CF+, data sheet, p. 3
More from makers: nozzle wear, supports and removal, printing advice and adhesion between layers
Nozzle wear
Normally, the life of a brass nozzle would be approximately 9h.
Polymaker Fiberon PA612-CF15, data sheet, p. 1
Supports and removal
Please remove the support structure after annealing.
Raise3D Industrial PA12 CF+, maker's product page or guide, p. 1
Printing advice
Besides, it is recommended that the thickness of the heating block is longer 12mm.
QIDI PA612-CF, data sheet, p. 4
Adhesion between layers
Compared with Raise3D Industrial PA12 CF, it exhibits higher strength-to-weight ratio, better interlayer bonding quality (Z-direction strength) and better dimensional stability.
Raise3D Industrial PA12 CF+, data sheet, p. 1
Products
Three products from three makers: Polymaker, QIDI and Raise3D.
Uses, limitations and chemicals
What it is sold for
PA12CF+ is an optimal choice for lightweight and strong end-use applications, such as jigs. fixtures, and many other functional parts in manufacturing, automotive, and aerospace fields.
Raise3D Industrial PA12 CF+, data sheet, p. 1Ideal for Industrial and Engineering Applications Perfect for automotive, aerospace, robotics, jigs, fixtures, and end-use components where dimensional stability, moisture resistance, and mechanical performance are critical.
Polymaker Fiberon PA612-CF15, maker's product page or guide, p. 1
What makers warn about
Chemicals and environment
Where no maker of these products speaks to an exposure, reference data for plain PA612 resin is shown. Fillers, pigments and printing change it, so it does not stand for these products.
| PA612 resin | Verdict | Agents |
|---|---|---|
| Acid resistance | not resistant | Sulphuric acid 2% aqueous solution (limited), Sulphuric acid 10% aqueous solution (limited), Sulphuric acid 50% aqueous solution (not resistant), Hydrochloric acid 10% aqueous solution (not resistant) and Nitric acid 10% aqueous solution (not resistant) |
| Alkali resistance | resistant | Sodium hydroxide (caustic soda) 40% aqueous solution (resistant) |
| Organic solvent resistance | limited | Acetone technical grade (resistant), Ethanol technical grade (limited) and Toluene technical grade (resistant) |
| Oil and grease resistance | resistant | Mineral oil commercial grade (resistant), Engine oil commercial grade (resistant), Petrol, lead-free commercial grade (resistant) and Petrol, E85 commercial grade (resistant) |
| Hydrolytic stability | limited | Water or aqueous solutions at high temperature (limited) |
Density and price
Its three products give a density of 1,030–1,090 kg/m³. PA612-CF typically costs 170 CAD/kg, across the 2 products with a regular price in the sample; the lowest is Polymaker Fiberon PA612-CF15 at 98 CAD/kg.
| As each sheet publishes it | Polymaker Fiberon PA612-CF15 | QIDI PA612-CF | Raise3D Industrial PA12 |
|---|---|---|---|
| Density | 1,030 kg/m³ | 1,090 kg/m³ | 1,030 kg/m³ |
| Price | 98 CAD/kg | not published | 242 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
4 more properties are published, each under its own sheet's test conditions, so they are listed, not ranked.
The 4 properties, lowest to highest
| Property | Products | Lowest–highest |
|---|---|---|
| Fibre content | 3 | 15 % |
| Melt mass-flow rate | 3 | 5.1–9.91 g/10 min |
| Water absorption | 2 | 2.2–2.46 % |
| Crystallization temperature | 1 | 180 °C |
Sources
7 documents from 4 publishers (3 data sheets, 3 makers' product pages and guides and 1 printer document), read 10 Sep–5 Oct 2026. Each value on PA612-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 3 products.
Every document (7), by publisher
| Publisher | Documents | Values | Products |
|---|---|---|---|
| Polymaker | 2 | 35 | 1 |
| Raise3D | 2 | 34 | 1 |
| QIDI | 2 | 29 | 1 |
- Bambu Lab, H2C Filamant Printing Guide | Bambu Lab Wiki
- Polymaker, Fiberon PA612-CF15 official maker product page
- Polymaker, Fiberon™ PA612-CF15 Technical Data Sheet
- QIDI, Choose the right filament - 3D Filaments Guide for QIDI Printers - QIDI CA Store
- QIDI, Technical Data Sheet QIDI PA612-CF
- Raise3D, PA12 CF+
- Raise3D, Raise3D Industrial PA12 CF+ Technical Data Sheet