| HS Code | 233690 |
| Material | ALM PA 802-CF CN (Nylon 11, Carbon Fiber Reinforced) |
| Density | 1.17 g/cm³ |
| Tensile Strength | 72 MPa |
| Tensile Modulus | 5.4 GPa |
| Elongation At Break | 4.5% |
| Flexural Strength | 96 MPa |
| Flexural Modulus | 4.8 GPa |
| Izod Impact Notched | 4.1 kJ/m² |
| Heat Deflection Temperature 0 45 Mpa | 181 °C |
| Heat Deflection Temperature 1 82 Mpa | 173 °C |
| Melting Temperature | 198 °C |
| Water Absorption | 0.3% |
As an accredited ALM PA 802-CF CN Nylon 11, Carbon Fiber Reinforced factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied in sealed, moisture-resistant containers, typically 10 kg per box, ensuring clean handling and powder integrity for additive manufacturing. |
| Container Loading (20′ FCL) | 20′ FCL: Full container load of ALM PA 802-CF CN Nylon 11, carbon fiber reinforced, packed and secured for transport. |
| Shipping | ALM PA 802-CF CN is a carbon-fiber-reinforced nylon 11 powder for additive manufacturing. Ship in sealed, moisture-barrier containers to prevent humidity absorption. Avoid generating airborne dust during handling. Use standard dry freight; no hazardous designation expected. Keep away from ignition sources and store in a cool, dry environment. |
| Storage | Store in a cool, dry, well-ventilated area in the original, tightly sealed container. Keep away from heat, sparks, open flames, and direct sunlight. Protect from moisture and humidity to prevent clumping or degradation; use desiccant if needed. Avoid dust accumulation and ensure compatibility with local storage regulations. |
| Shelf Life | Store in a sealed, cool, dry container. Shelf life is 12 months from manufacture date when properly handled. |
Qualification of ALM PA 802-CF CN for downstream production begins with environmental control and electrostatic management. The powder is stored in sealed aluminium-lined containers at ≤ 25 °C and ≤ 40 % RH; if Karl Fischer titration shows moisture above 0.20 wt%, drying at 80 °C for 6 h under nitrogen purge is applied before loading. The carbon-fiber phase makes the powder electrostatically active, and recoaters and hoppers are grounded below 10⁶ Ω to prevent charge accumulation. The downstream scenarios below are limited to sectors where carbon-fiber-reinforced nylon 11 has established processing and service records. Numerical values are representative for a 15 wt% short carbon fiber PA11 feedstock; exact release values are confirmed with the supplier certificate.
| Downstream sector | Relevant compliance standard | Test method or clause | Qualification boundary |
|---|---|---|---|
| UAV structural brackets | MIL-STD-810H Method 514.8, ASTM D638-14, ASTM D648-16 | random vibration; Type I tensile at 5.0 mm/min; HDT at 1.82 MPa | flight-critical parts use 100 % virgin powder |
| Orthotic sockets and AFO shells | ISO 10993-5:2009, ISO 10993-10:2010, ISO 10328:2016 | cytotoxicity; skin sensitization; structural load testing | recovered powder excluded from skin-contact builds |
| Automotive under-hood prototypes | ISO 16750-5:2010, UL 94 | chemical load testing; flammability at 1.5 mm | typical rating HB; V-0 not expected |
| Oil and gas instrumentation supports | ISO 23936-2:2011, NORSOK M-710 | polymer qualification for sour-service exposure | non-pressure-containing components only |
| Robotic end-of-arm tooling | ISO 12100:2010, ISO 10218-1:2011, ISO 9409-1:2004 | machinery safety; robot system design; mechanical interface | ±0.1 mm positional tolerance requires 100 % virgin powder |
| Custom footwear and ski boot inserts | EN ISO 17707:2005 | flex fatigue of outsoles | threaded brass inserts required at load points |
In unmanned aerial vehicle production, the material is selected for motor-mount spacers, antenna radome brackets, and battery-cell isolation frames. The addition ratio is set at 100 % virgin ALM PA 802-CF CN for parts subjected to MIL-STD-810H Method 514.8 vibration profiles, while a 60:40 recovered-to-virgin pulverized powder blend is permitted only for non-flight alignment jigs. The recovered fraction is sieved through a 125 µm ultrasonic screen and mixed in a low-shear tumble blender for 20 min to prevent carbon-fiber agglomeration. Processing on a 45 W CO₂ laser SLS platform—EOS P 396 or Farsoon HT252P class—uses a 0.12 mm layer thickness, a bed setpoint of 168 °C ± 1.5 °C, and an alternating scan vector strategy between layers to limit anisotropic shrinkage. The processing window is narrower than unreinforced nylon 11 because carbon fiber increases melt viscosity at the laser spot and accelerates crystallization; bed temperatures below 165 °C produce sidewall porosity, while temperatures above 172 °C cause darkening and reduced elongation. Compliance screening uses ASTM D638-14 Type I at 5.0 mm/min, ASTM D790-17 Method A, and ASTM D648-16 at 1.82 MPa. REACH (EC) No 1907/2006 Annex XVII restricted substances and RoHS 2011/65/EU Annex II are checked on the final part. Uncoated parts are not used for sustained saltwater immersion; an aliphatic polyurethane topcoat is applied when sea-surface UAV exposure is specified.
Orthotic socket and ankle-foot orthosis (AFO) fabrication introduces a skin-contact boundary absent in aerospace work. The addition ratio is 100 % virgin powder for any surface that, after sealing, will contact skin for more than 30 min per day; recovered powder is excluded because recycling shifts the molecular weight distribution and may introduce unknown degradation products. Where higher impact toughness is required, a 70:30 blend of PA 802-CF CN with unreinforced nylon 11 is used, but this blend is not submitted for regulatory skin-contact review. The SLS build uses a 0.12 mm layer thickness, a bed setpoint of 165 °C ± 2 °C, and an orientation that places the socket anterior wall 20°–30° off-vertical to reduce staircase effects at the distal trim line. After depowdering and 0.4 MPa bead blasting with 180 µm glass beads, the carbon-fiber-bearing surface is sealed with a solvent-free aliphatic polyurethane coat of 80–120 µm dry film thickness. Uncoated carbon-fiber-filled surfaces are not suitable for direct skin contact because fiber ends can migrate under friction. Compliance for the finished load-bearing orthosis follows ISO 10328:2016 structural testing for lower-limb prostheses, while the powder supplier’s chemical characterization report is reviewed against ISO 10993-18:2020, ISO 10993-5:2009 cytotoxicity, and ISO 10993-10:2010 skin sensitization. Terminal products are custom prosthetic sockets and rigid AFO shells for neurological dropfoot correction.
Because under-hood prototypes must survive thermal soak with negligible creep, coolant reservoir mounting flanges, EGR cooler brackets, and ECU side covers are produced at 100 % dry PA 802-CF CN; dilution with unreinforced PA11 is not recommended because it lowers heat deflection temperature below 150 °C at 0.46 MPa and reduces the retention of clamp force in thermal soak. For non-structural harness clip nests, an 80:20 virgin-to-recovered blend is used after the recovered fraction passes a 106 µm sieve and is dried to below 0.15 wt% moisture. The SLS process for large flat brackets uses a 170 °C bed setpoint, a 0.15 mm layer thickness, and a post-build air anneal at 150 °C for 2 h to reduce anisotropic shrinkage. Without annealing, carbon-fiber orientation can produce shrinkage of approximately 0.8 % in the scan direction and 0.4 % transverse after the first thermal cycle; under a constant load of 0.45 MPa at 90 °C, creep may exceed 0.5 % after 500 h. Compliance for automotive electronic component housings is evaluated under ISO 16750-5:2010 chemical load testing and UL 94 flammability testing at 1.5 mm; the carbon-filled grade typically achieves HB, not V-0, and should not be specified where a V-0 classification is mandatory. REACH (EC) No 1907/2006 and RoHS 2011/65/EU Annex II restricted substance screening apply to the final assembled part. Terminal products are production-intent underhood prototypes, low-volume service brackets, and diagnostic tooling housings that require continuous exposure to coolant mist and hydrocarbon vapour.
Low-pressure oil and gas instrumentation selects the material for instrument tube clamps, cable support saddles, and chemical injection line brackets. The addition ratio is 100 % virgin powder only; recovered powder is not permitted because repeated thermal cycles raise the carbonyl index and may compromise resistance to amine-based corrosion inhibitors. Processing uses a 0.12 mm layer thickness, a bed setpoint of 168 °C ± 2 °C, and a post-sintering seal with a hydrocarbon-resistant fluoropolymer topcoat of 40–60 µm dry film thickness to prevent carbon-fiber wicking along interlayer boundaries. Compliance is screened against ISO 23936-2:2011 for polymers in oil and gas production and NORSOK M-710 qualification of non-metallic materials; the material is not qualified for high-pressure gas sealing or H₂S service above 1.5 bar partial pressure without additional supplier test data. Published data for this specific configuration under prolonged sour-service exposure is limited. Terminal products are external, non-pressure-containing supports that require chemical tolerance and dimensional stability rather than sealing function.
Robotic end-of-arm tooling made from carbon-fiber-reinforced nylon 11 is used where aluminum gripper fingers are too heavy and unreinforced nylon inserts creep too quickly on hot assembly lines. The addition ratio is 100 % virgin powder for gripper fingers with a positional tolerance of ±0.1 mm; an 80:20 virgin-to-recovered blend is allowed for replaceable wear pads and alignment pucks. Processing uses a 0.12 mm layer thickness, a bed setpoint of 167 °C ± 2 °C, and an alternating scan vector strategy to reduce bowing in thin gripper walls. Vapor smoothing is not applied because it dissolves the surface and exposes fiber ends; instead, parts are bead blasted at 0.4 MPa with 180 µm glass beads, and hard-anodized aluminum insert bushings are installed where screws apply clamp force. The in-plane coefficient of thermal expansion, screened by ASTM E831-19, is typically 35–45 µm/m·°C, which is lower than unreinforced PA11 but still higher than steel tooling plates; fit gaps are therefore designed with an additional 0.15 mm clearance for every 100 mm of length across a 20 °C to 80 °C service range. Compliance follows ISO 12100:2010 for machinery safety, ISO 10218-1:2011 for robot and robotic devices, and ISO 9409-1:2004 for mechanical interfaces. Terminal products are pick-and-place fingers, alignment fixtures, and end-of-arm vacuum nozzle adapters for collaborative and industrial robots.
For custom cycling cleat adapters, corrective footbeds, and ski boot liner frames, production uses 100 % virgin powder. The addition ratio is not reduced because the carbon-fiber content is required for flexural modulus retention after repeated bending. SLS processing uses a 0.12 mm layer thickness, a bed temperature of 165 °C ± 2 °C, and a build orientation that places cleat screw holes parallel to the powder-spread direction to avoid ovality. Compliance for footwear flex fatigue is evaluated by EN ISO 17707:2005 flex testing of outsoles. Terminal products are custom cycling shoe shims, corrective footbeds, and low-temperature ski boot inserts. This scenario remains a shallow zone because the processing window is well established; beyond bead blasting and fitting of threaded brass inserts, no additional post-processing is required.
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ALM PA 802-CF CN is a carbon-fibre-reinforced polyamide 11 powder formulated for selective laser sintering on CO₂ laser powder-bed fusion systems operating at 10.6 µm. The product is supplied by Advanced Laser Materials, LLC, and the CN designation identifies the carbon-fibre-reinforced grade within the PA 802 series. The material is specified where sintered parts require a combination of stiffness, hydrocarbon resistance, reduced moisture uptake relative to short-chain polyamides, and dimensional stability under elevated service temperatures. Unlike unfilled PA 11, the carbon fibre fraction modifies melt pool behaviour, laser absorption, recrystallisation kinetics, and post-sinter shrinkage. The powder is supplied as a free-flowing feedstock, and sintered mechanical data are orientation-dependent because fibre alignment follows the recoating direction.
Carbon fibres become oriented predominantly in the build plane during layer spreading. This creates a measurable divergence between XY and Z direction properties. In published data for carbon-fibre-reinforced PA 11 laser sintering grades, XY-plane tensile modulus is commonly reported between 4,000 MPa and 5,000 MPa when tested according to ISO 527-2:2012 or ASTM D638-22. The Z-direction tensile modulus may be 40–55 % lower because interlayer boundaries act as stress concentrators. XY-plane elongation at break is typically 2–4 %, while Z-direction elongation may fall below 2 %. Flexural modulus values obtained under ASTM D790-17 generally fall between 3,800 MPa and 4,800 MPa for XY-oriented specimens. These ranges are class-typical and are not a substitute for lot-specific certificates of analysis for ALM PA 802-CF CN.
| Property | Test standard | XY orientation typical range | Z orientation typical range |
|---|---|---|---|
| Tensile modulus | ISO 527-2:2012 | 4,000–5,000 MPa | 2,200–3,200 MPa |
| Tensile strength | ISO 527-2:2012 | 45–55 MPa | 25–35 MPa |
| Elongation at break | ISO 527-2:2012 | 2–4 % | 1–2 % |
| Flexural modulus | ASTM D790-17 | 3,800–4,800 MPa | Published data limited |
| Heat deflection temperature at 1.82 MPa | ASTM D648-18 | 140–170 °C | 110–130 °C |
Compiled from published carbon-fibre-reinforced PA 11 SLS data. Actual ALM PA 802-CF CN lot values may vary with powder age, refresh ratio, build orientation, and machine type.
Because the powder is hygroscopic, moisture control is the first process variable to govern. Nylon 11 reaches approximately 0.7–1.0 wt% equilibrium moisture at 23 °C and 50 % RH; however, for SLS feed material, residual moisture above 0.15 wt% has been associated with melt-pool defects, increased porosity, and surface texture variation. In production environments where relative humidity exceeds 60 % RH, opened containers should be transferred to dry storage within 2 h or pre-dried before return to the feed hopper. Desiccant drying at 80 °C for 4–6 h with a supply-air dew point below -30 °C is the typical boundary condition. Karl Fischer titration according to ISO 15512:2019 or ASTM D6869-17 should be used to confirm residual moisture below 0.10 wt% before processing. Failure to control moisture causes hydrolysis of the polyamide during repeated laser exposure and reduces the number of allowable refresh cycles.
Carbon fibre reinforcement raises the heat deflection temperature relative to unfilled PA 11, but it does not fundamentally alter the base polymer’s chemical compatibility. Published values for carbon-filled PA 11 SLS materials place XY-plane heat deflection temperature at 1.82 MPa between 140 °C and 170 °C, with the lower values associated with high void content or insufficient energy density. Continuous-use temperature in air is generally limited to 120–130 °C for unstabilised polyamide 11; stabilised formulations may extend this range, but published data for this specific configuration is limited. The material resists aliphatic hydrocarbons, mineral oils, greases, diesel, and many automotive fluids at ambient to moderately elevated temperatures. It is not recommended for service with strong mineral acids, formic acid, acetic acid at elevated temperature, phenols, cresols, or oxidising media. Chemical immersion testing should follow ISO 175:2010 or ASTM D543-20; property retention after 500 h in the representative fluid at the intended service temperature is the standard qualification method. Carbon fibres can wick fluid along the fibre-matrix interface during long-term immersion, so edge sealing or post-infiltration may be required for pressure boundaries.
Processing of this product requires a narrow thermal window between the onset of melting and recrystallisation. The base PA 11 melting peak is typically near 186 °C; the build chamber is held at 165–175 °C and the feed bed at 100–120 °C for carbon-fibre-reinforced grades. If the build bed is maintained too high, the powder agglomerates and recoating fails. If the bed is too low, the melt pool solidifies before sufficient interlayer adhesion develops, producing delamination and low Z-direction strength. Layer thickness is typically 0.10–0.15 mm, with scan spacing between 0.10 mm and 0.25 mm. CO₂ laser power settings in the range 25–50 W, scan speeds of 2,000–10,000 mm/s, and beam offsets of 0.15–0.35 mm are common starting points, but these values require machine-specific calibration. Energy density should be evaluated by testing XY and Z tensile bars, not by visual surface appearance alone. Virgin powder is specified for critical applications. For general production, refresh ratios of 30–50 % virgin to used powder are common. Used powder exposed to elevated bed temperatures for more than 24 h undergoes molecular weight loss and particle shape change; recycled fractions above 50 % can produce black specking, lower elongation at break, and reduced lot-to-lot reproducibility. Sieving through 90–150 µm mesh after each build removes fused agglomerates and fibre-rich clusters. Build chamber oxygen content should be maintained below 2 % and preferably below 1 % to prevent oxidative yellowing.
In automotive under-hood brackets and fluid reservoir retainers, ALM PA 802-CF CN is specified where unfilled PA 11 would exhibit excessive creep at elevated temperature. The carbon fibre reinforcement reduces creep compliance and increases apparent stiffness under sustained load. Components have been evaluated on production SLS platforms with build volumes up to 550 × 550 × 750 mm; the primary failure mode observed in initial production trials was interlayer separation at sharp corners when the bed temperature was below the recrystallisation onset. Increasing the bed temperature by 5 °C and reducing scan spacing to 0.15 mm resolved the delamination without increasing wall thickness. For pressure-containing parts, hot isostatic pressing or vapour smoothing is not automatically required; leak testing should be performed according to the part-specific pressure decay method.
The primary difference from unfilled PA 11 is the reduction in ductility and the increase in modulus. Unfilled PA 11 typically exhibits XY tensile elongation of 20–40 %, whereas the carbon-fibre-reinforced grade is reported in the 2–5 % range. This is beneficial for stiffness but excludes snap-fit features that rely on large strain recovery. Against carbon-fibre-reinforced PA 12 grades, ALM PA 802-CF CN offers a higher base-polymer melting point of approximately 186 °C versus 176–180 °C for PA 12, which can translate into higher short-term thermal resistance and better retention of mechanical properties at 100–130 °C. Polyamide 11 chain chemistry yields different moisture and chemical resistance characteristics. At 23 °C and 50 % RH, equilibrium moisture is approximately 0.7–1.0 % for PA 11 and 0.5–0.8 % for PA 12. The practical difference is that PA 11 may retain higher tensile properties at temperatures near 100 °C in dry or hydrocarbon environments, while PA 12 may show lower water absorption and better low-temperature impact. Carbon fibre reinforcement in both materials reduces elongation and increases surface hardness.
| Property | Test standard | ALM PA 802-CF CN class-typical | Unfilled PA 11 SLS | PA 12 CF SLS |
|---|---|---|---|---|
| Density | ISO 1183-1:2019 | 1.12–1.18 g/cm³ | 1.02–1.05 g/cm³ | 1.03–1.08 g/cm³ |
| Tensile modulus XY | ISO 527-2:2012 | 4,000–5,000 MPa | 1,400–1,800 MPa | 3,500–4,500 MPa |
| Tensile strength XY | ISO 527-2:2012 | 45–55 MPa | 42–50 MPa | 45–55 MPa |
| Elongation at break XY | ISO 527-2:2012 | 2–5 % | 20–40 % | 3–6 % |
| HDT at 1.82 MPa | ASTM D648-18 | 140–170 °C | 50–60 °C | 130–160 °C |
| Equilibrium moisture at 23 °C, 50 % RH | ISO 62:2008 | 0.7–1.0 % | 0.7–1.0 % | 0.5–0.8 % |
Values are compiled from published class data and should be confirmed against the current ALM PA 802-CF CN certificate of analysis. Lot-to-lot variation and machine state are controlling variables.
After depowdering, carbon-fibre-filled PA 11 parts exhibit a matte grey-black surface with visible fibre orientation. Dyeing in polyamide dyes at 80–95 °C produces dark tones; the carbon fibre prevents bright colouration. Vapour smoothing may reduce surface roughness but can preferentially remove the matrix and expose loose fibres. Surface roughness Sa values of 8–15 µm are common after bead blasting; Ra values are orientation-dependent and should be measured according to ISO 25178-2. Operators evaluating this product should not substitute unfilled PA 11 parameters directly. The carbon fibre lowers powder flowability, increases laser absorption, and shifts the optimum part bed temperature by up to 10 °C. Print parameter sets should be revalidated on the target machine, with tensile specimens oriented in XY and Z directions, after any change in refresh ratio or recycled powder source.
