| HS Code | 365256 |
| Density | 1.18 g/cm³ |
| Melting Point | 178 °C |
| Glass Transition Temperature | 50 °C |
| Tensile Strength At Break | 80 MPa |
| Elongation At Break | 4% |
| Flexural Modulus | 4800 MPa |
| Charpy Impact Strength Notched | 6 kJ/m² |
| Heat Deflection Temperature At 1 8 Mpa | 140 °C |
| Vicat Softening Temperature | 170 °C |
| Water Absorption 24h At 23 C | 0.2% |
As an accredited Ixom ASTAMID™ N-3020X7 Nylon 12 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Ixom ASTAMID™ N-3020X7 Nylon 12 is supplied as 20 kg sealed moisture-barrier bags, ensuring dry storage and safe handling. |
| Container Loading (20′ FCL) | 20′ FCL: palletized bags of Ixom ASTAMID™ N-3020X7 Nylon 12, securely loaded, protected from moisture and damage. |
| Shipping | Ship as non-hazardous nylon 12 resin in sealed, moisture-proof packaging. Use standard dry freight; avoid exposure to humidity, excessive heat, or direct sunlight. Keep containers upright and protected from damage. No special transport classification is required under typical regulations, but proper labeling and traceability should be maintained. |
| Storage | Store Ixom ASTAMID™ N-3020X7 Nylon 12 in a cool, dry, well-ventilated area, away from direct sunlight, heat, sparks, and open flames. Keep the container tightly sealed when not in use to prevent moisture absorption, which can degrade the material. Avoid stacking excessively and store away from incompatible substances. Follow all label and safety instructions. |
| Shelf Life | Shelf life is typically 12 months from manufacture date when stored unopened in a cool, dry environment. |
In coextruded multi-layer automotive fuel vapour tubing, Ixom ASTAMID™ N-3020X7 Nylon 12 is processed as an outer abrasion jacket and, when compounded with conductive carbon black, as an innermost static-dissipative layer in contact with fuel vapour. Compliance for the finished assembly is defined by SAE J2260 for evaporative emissions after thermal cycling, ISO 22621-1:2007 for dimensions and burst strength, and IEC 60093 for surface resistivity below 106 Ω/sq in the conductive layer; REACH Regulation (EC) No 1907/2006 Annex XVII restrictions on plasticisers also apply. To achieve low-temperature impact resistance at −40 °C without exceeding the 230 °C onset of ethylene-vinyl alcohol copolymer barrier degradation, automated gravimetric dosing on a 40:1 L/D counter-rotating twin-screw compounding extruder typically supplies 6–9 wt% benzene sulfonamide plasticiser into the jacket layer, while the conductive inner layer is loaded with 5–8 wt% high-structure carbon black and 0.3–0.5 wt% hindered phenolic antioxidant to suppress gel formation during residence at 225–240 °C die temperature. Downstream production proceeds by five-layer coextrusion with independent melt pumps maintaining layer-to-layer thickness ratios of 3:1:2:1:3 without interfacial flow instability; vacuum calibration tank water temperature is held at 40–60 °C, line speed ranged from 30 to 80 m/min, and containerised inline optical inspection at 200 lx monitors for carbonised specks created when barrel residence time exceeds 6 min at 240 °C, a condition that breaches the 100 μm continuous barrier and raises hydrocarbon permeation above specification. Terminal finished product types include preformed vapour bundles with quick-connect ends and corrugated protective sleeves assembled into evaporative emission systems for passenger cars and light trucks.
Powder reuse rates in selective laser sintering are constrained by the oxidative chain-extension that occurs when nylon 12 is held in a nitrogen-inerted build chamber at 168–175 °C for repeated cycles; oxygen ingress above 2 vol% accelerates carboxyl end-group consumption, producing a measurable rise in melt viscosity and a shift in the onset of melting. Conformance for industrial laser-sintered components is anchored to ASTM F2924 for powder bed feedstock characterisation, ISO 17296-2 for process control documentation, ASTM D638-14 for tensile property testing, and ISO 180 for Charpy notched impact. Formulation for Ixom ASTAMID™ N-3020X7 as a powder feedstock typically incorporates 0.08–0.12 wt% hydrophobic fumed silica to improve dry flow and electrostatic deposition, while the fresh-to-reused blending ratio is maintained at 50:50 by weight in serial production; virgin powder addition compensates for wall drag losses and thermal mass loss. Operators using a 100 W CO₂ laser, 0.30–0.35 mm scan spacing, 100 μm layer thickness, and energy density between 45–55 mJ/mm² record a non-linear reduction in tensile strength once reused powder exceeds 70 wt%, with Charpy notched impact falling from 4.6 kJ/m² to below 2.5 kJ/m² because incomplete particle coalescence and molecular weight buildup reduce interlayer weld strength. The comparative data in the table below consolidate representative PA12 powder reuse values published by laser sintering system manufacturers; published data for Ixom ASTAMID™ N-3020X7 in this specific powder form is limited, so the table functions as a process-design reference rather than a grade-specific guarantee.
| Powder reuse ratio | Tensile strength (ASTM D638-14) | Charpy notched impact (ISO 180) |
|---|---|---|
| 100 fresh | 48–50 MPa | 4.5–4.8 kJ/m² |
| 50 fresh : 50 reused | 45–48 MPa | 3.8–4.2 kJ/m² |
| 30 fresh : 70 reused | 42–45 MPa | 3.0–3.4 kJ/m² |
| 100 reused | 38–42 MPa | 2.2–2.8 kJ/m² |
Downstream production runs therefore restrict the reuse ratio to ≤70 wt% to maintain a minimum interlayer tensile strength of 40 MPa under ASTM D638-14; terminal finished product types include cabin air ducts without paint post-processing, robotic end-of-arm tooling with conformal cooling channels, and low-volume replacement exhaust brackets for legacy vehicle platforms.
Triple-layer coextrusion of PA12 onto steel dynamic umbilical cores is controlled by the need to maintain a continuous barrier against seawater ingress while surviving flexural fatigue at 1 Hz with a bend radius of 8 times the outer diameter. Compliance documentation for the complete umbilical assembly references API Spec 17E for thermoplastic hoses and control lines, ISO 13628-5 for dynamic performance qualification, and NEK 606 for offshore cable and umbilical sheathing materials. In the barrier layer, formulation addition ratios include 3–8 wt% n-butylbenzenesulfonamide plasticiser for low-temperature flexibility at −20 °C, 2–4 wt% medium-colour furnace carbon black for ultraviolet shielding under ISO 4892-2, and 10–20 wt% maleic anhydride-grafted elastomer when the outer sheath must resist impact abrasion during subsea installation. Melt processing on a 30:1 L/D barrier screw extruder is performed at die temperatures of 230–250 °C with melt pressure maintained between 80–150 bar; vacuum sizing and a two-stage water cooling bath set at 20 °C and 5 °C reduce post-extrusion crystallinity to a level that passes dynamic fatigue testing. Field failure modes include pinhole formation when melt shear rate exceeds 4×104 s-1 due to melt fracture, and swelling-induced stress cracking when sheath materials are exposed to methanol-based hydrate inhibitors above 50 °C; such exposure is prevented by specifying barrier materials that have completed ISO 22088 environmental stress cracking tests. Terminal finished product types include dynamic umbilical sheaths for open-water workover systems and hydraulic control line bundles used in subsea production trees.
Electrostatic powder coating with nylon 12 is selected for wire dishwasher baskets and cast pump components where wet-coat primers fail under hot alkaline detergents and cyclic mechanical abrasion. Compliance is established through ISO 8130-1 for powder coating particle size distribution and density, ASTM D5965 for powder flow properties, ISO 2178 for coating thickness measurement on metallic substrates, and FDA 21 CFR 175.300 for resinous and polymeric coatings used in food-contact surfaces where applicable. To prevent back-ionisation and achieve a pinhole-free film on complex geometries, the nylon 12 powder formulation includes 0.3–0.5 wt% hydrophobic fumed silica as dry-flow agent, 0.2–0.4 wt% polyamide wax as levelling additive, and 1–2 wt% inorganic pigment masterbatch for colour coding; the powder must be pre-dried at 80 °C for 2 hours when relative humidity exceeds 60% to avoid steam porosity during melt-out. Fluidised-bed dipping of preheated baskets at 250–260 °C produces a fused film thickness of 250–400 μm in a single pass, while electrostatic spray coating of pump impellers requires corona charging at 60–80 kV and a curing oven hold of 230–240 °C for 5–10 min; the transition from low-charge to high-charge zones on the impeller vane edges causes local thickness deviation of up to 15%, which is controlled by adjusting gun-to-part distance to 150–200 mm. Terminal finished product types include coated upper and lower dishwasher rack assemblies, chemical transfer pump impellers, and valve bodies subjected to intermittent steam cleaning.
Gamma irradiation of nylon 12 catheter shaft tubing is evaluated primarily for retention of tensile elongation because chain scission initiated by 25–40 kGy sterilisation doses leads to embrittlement when moisture content and antioxidant level fall outside narrow processing limits. Biocompatibility and device compliance are defined by ISO 10993-5 for in vitro cytotoxicity, ISO 10993-10 for sensitisation and irritation, USP <88> Class VI systemic injection tests, and ISO 10555-1 for general requirements of intravascular catheters. The formulation addition ratios for a radiopaque shaft compound are 12–18 wt% barium sulfate, 0.5–1.0 wt% hindered phenol antioxidant, and 2–4 wt% colour masterbatch; barium sulfate loading reduces tensile elongation by approximately 15–20% relative to unfilled nylon 12 and shifts the melt viscosity slope during extrusion, requiring barrel temperature profiling of 180–230 °C on a 24:1 L/D single-screw extruder with a 25 μm rated melt filtration cartridge. Downstream production includes coextrusion over a polytetrafluoroethylene inner liner with a puller-driven speed of 20–60 m/min, followed by after-extrusion annealing at 110 °C for 2 hours to reduce crystallinity gradients that contribute to radial stress corrosion. Published data for Ixom ASTAMID™ N-3020X7 in gamma-sterilised catheter shaft configurations is limited; however, accelerated ageing studies on representative nylon 12 compounds indicate that doses above 60 kGy reduce ultimate elongation by more than 30% relative to non-irradiated controls. Terminal finished product types include overmoulded introducer sheath shafts, balloon catheter inner members, and steerable guide catheter liners.
Crosshead extrusion of PA12 inner core tubes for multi-layer hydraulic hose is performed onto a hardened mild steel mandrel at melt temperatures of 230–250 °C and line speeds from 15 to 40 m/min, after which textile braiding and polyurethane outer cover extrusion complete the assembly. Industry compliance for the finished hose is guided by SAE J517 for hydraulic hose performance, EN 853 for spiral-wire reinforced hoses, and ISO 18752 for pressure classes and service life classification. To maintain flexibility at −40 °C and avoid core tube collapse during braiding, the compound is formulated with 5–10 wt% benzene sulfonamide plasticiser, 0.5–1.0 wt% ethylene bis-stearamide wax as internal lubricant, and 0.2–0.5 wt% copper iodide/potassium bromide stabiliser to retard thermo-oxidative degradation during extrusion and subsequent hose vulcanisation. Adhesion between the PA12 core and the polyurethane cover is maximised when the mandrel surface temperature is held above 80 °C before crosshead transfer; below that threshold, the pressure-sensitive bond line fails during burst testing at 2× working pressure, a condition observed in batch trials when mandrel preheat was shortened from 12 min to 8 min. Downstream production includes a steam autoclave for polyester yarn adhesion, followed by hydrostatic proof testing at 2.5× working pressure and impulse testing under SAE J343 for 1,000,000 cycles. Terminal finished product types include twin-line hydraulic hose assemblies for compact construction equipment and hydraulic brake hose subassemblies for off-road vehicles.
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Ixom ASTAMID™ N-3020X7 is a natural, unfilled polyamide 12 powder grade. The product code distinguishes it from filled, colored, or heat-stabilized polyamide 12 grades within the same supplier family. Because the current public data sheet for this specific configuration does not list complete lot-specific numerical values for every property, the following engineering values refer to the unfilled polyamide 12 material class under DIN EN ISO 1874-1; certificate-of-analysis values for each production lot should replace these preliminary figures. As an unfilled polyamide 12, the material is semicrystalline and contains a lower amide-group density than polyamide 6 or polyamide 66, which reduces equilibrium water absorption and improves dimensional stability in humid service. Typical density of unfilled polyamide 12 is 1.01 g/cm³ according to ISO 1183-1. The melting endotherm peak occurs at 176–180 °C by ISO 11357-3. Equilibrium moisture uptake at 23 °C and 50 % relative humidity is 0.2–0.3 % by ISO 62. Saturation water absorption is approximately 1.4–1.6 %. Melt volume-flow rate at 235 °C and 2.16 kg load typically falls between 8 and 25 cm³/10 min by ISO 1133-1. Tensile yield stress is 40–50 MPa, elongation at break exceeds 200 %, flexural modulus is 1.2–1.5 GPa, and Shore D hardness is 70–75 according to ISO 868.
The alphanumeric sequence N-3020X7 is generally interpreted within the supplier family as N for natural and unfilled grade identification; the numeric segments may encode particle-size class, melt-flow range, or production variant. Published data for this specific configuration is limited, therefore the following table compares representative unfilled polyamide 12 class values with polyamide 11 and dry-as-molded polyamide 66. The comparison identifies the main substitution boundaries when users move from short-chain aliphatic polyamides to the long-chain polyamide 12 structure. These values are not a substitute for lot-specific certificates.
| Property | Test method | Unfilled PA12 class | PA11 | PA66 dry-as-molded |
|---|---|---|---|---|
| Density | ISO 1183-1 | 1.01 g/cm³ | 1.03–1.05 g/cm³ | 1.13–1.15 g/cm³ |
| Melting peak | ISO 11357-3 | 176–180 °C | 189–191 °C | 260–265 °C |
| Moisture uptake at 23 °C, 50 % RH | ISO 62 | 0.2–0.3 % | 0.3–0.5 % | 2.5–3.0 % |
| Flexural modulus | ISO 178 | 1.2–1.5 GPa | 1.0–1.3 GPa | 2.8–3.2 GPa |
| Tensile elongation at break | ISO 527-1/-2 | >200 % | >200 % | 20–60 % |
| Notched Charpy impact at 23 °C | ISO 179-1/1eA | 5–10 kJ/m² | 10–20 kJ/m² | 5–8 kJ/m² |
Regulatory compliance for Ixom ASTAMID™ N-3020X7 should be confirmed from the supplier safety data sheet and technical data sheet. Unfilled polyamide 12 powders may be evaluated under EU REACH, RoHS 2011/65/EU, and U.S. TSCA inventory requirements. Food-contact status, if required, must be confirmed against FDA 21 CFR 177.1500 or EU 10/2011; the current public data sheet does not state food-contact certification for this specific grade. The same applies to pharmaceutical or potable-water contact uses, where additional migration testing is required under the relevant end-use standard.
Moisture control is a processing boundary for polyamide 12 powders. Because the amide bond is polar, water uptake follows the ambient relative humidity. At or above 60 % relative humidity, the powder can exceed 0.15 % moisture content within a few hours, and melt processing then produces steam porosity, interfacial voids, and hydrolysis-induced molecular weight loss. Drying is performed in a desiccant dryer with dew point below -40 °C at 80 °C for 4–6 h, or in a nitrogen-purged vacuum oven at 80 °C and 20 kPa until moisture is below 0.15 %. Moisture measurement should use ISO 15512 method B or an equivalent Karl Fischer procedure. Drying at temperatures above 80 °C can lead to powder sintering or particle agglomeration if the powder is stored in deep layers, because the material approaches its melting onset. Avoid acid-bearing additives because amide bond hydrolysis accelerates with acidic protons at melt temperature. Processing in the presence of condensation polymers that release formaldehyde or moisture should also be avoided due to chain scission and surface deposit formation.
The operational limit is not solely the average moisture content. Moisture distribution in a large container can vary between the surface and core layers. A production-scale dryer with closed-loop hopper or rotary vacuum dryer must provide air velocity sufficient to fluidize the powder bed at least 0.5 m/s. Static bed drying without mixing commonly leaves core moisture above 0.2 % even when the surface layer is below 0.1 %. Batch-to-batch variation in initial moisture is also observed in humid manufacturing environments. Therefore the drying time should be adjusted based on incoming moisture, not fixed at a single setpoint.
In powder-bed fusion, polyamide 12 is processed near its melting onset. The build chamber temperature is typically maintained between 165 and 175 °C to keep unexposed powder free-flowing and to reduce curling forces. A CO₂ laser with 10.6 µm wavelength is used; typical total energy density for unfilled polyamide 12 is 0.05–0.10 J/mm². Layer height is usually 0.10–0.12 mm. At chamber temperatures below 165 °C, the melt pool solidifies too quickly and sidewall curl increases. Above 175 °C, unexposed powder begins to fuse or lose flowability, causing recoater drag and non-uniform layer thickness. A counter-rotating roller or blade recoater must maintain a bed surface profile deviation below 0.02 mm; production machines typically rely on roller speed between 80 and 120 mm/s.
Used powder accumulates chain extension, branching, and viscosity shift. Recycle ratio must be controlled by blending 30–50 wt% fresh powder with used powder, depending on the number of thermal cycles and particle fines content. Loss of particle fines reduces packing density and can create sidewall defects on production machines. New powder should be sieved to remove aggregates above 120 µm; used powder should be classified at 63–80 µm depending on machine manufacturer. Melt volume-flow rate and bulk density should be measured after each recycle pass. A decline in melt volume-flow rate of more than 20 % relative to the original lot indicates excessive molar mass growth and usually requires higher recycle ratio or lower chamber temperature. Bulk density below approximately 0.45 g/cm³ can reduce green-part density and final tensile modulus. Published data for this specific N-3020X7 grade under continuous selective laser sintering reuse is limited, so lot-specific checks are required after each thermal cycle.
Steam evolution from residual moisture in warm powder is another failure mode observed on production equipment. When the powder is exposed to ambient air for more than 2 h before loading, condensation can form on the cold surface of the hopper. The first layer may then delaminate or create surface porosity. In a humid plant, the powder loading room should be maintained below 40 % relative humidity or the powder should be dried immediately before use. Operators should avoid direct hand contact with the powder to prevent localized moisture and oil contamination.
The unfilled N-3020X7 material class retains high elongation and ductile failure, but flexural modulus remains low relative to glass-reinforced polyamide 12 grades. Glass-filled polyamide 12 can increase flexural modulus from 1.2–1.5 GPa to 3–5 GPa at the cost of reducing tensile elongation at break to 3–5 %. In impact-limited snap-fit or living-hinge applications, replacing unfilled polyamide 12 with a glass-filled grade may cause brittle fracture. Polyamide 66 offers higher heat deflection temperature but has greater water absorption; polyamide 12 retains more stable dimensions in humid air. Thus N-3020X7 sits near the unfilled long-chain polyamide boundary; it is selected when water absorption, ductility, and powder processability dominate over stiffness and heat deflection. The choice between this grade and a glass-filled polyamide 12 should be based on flexural modulus, tensile elongation at break, and moisture absorption data under the same test methods.
