| HS Code | 226772 |
| Density | 1.56 g/cm3 |
| Water Absorption 24h | 0.15 % |
| Tensile Modulus | 12000 MPa |
| Tensile Stress At Break | 145 MPa |
| Tensile Strain At Break | 2.5 % |
| Flexural Modulus | 10500 MPa |
| Flexural Strength | 185 MPa |
| Charpy Impact Strength | 35 kJ/m2 |
| Charpy Notched Impact Strength | 7 kJ/m2 |
| Melting Point | 218 °C |
| Heat Deflection Temperature 0 45 Mpa | 205 °C |
| Heat Deflection Temperature 1 8 Mpa | 170 °C |
| Vicat Softening Temperature | 190 °C |
| Density | 1.47 g/cm³ |
| Water Absorption 24h | 0.4% |
| Tensile Modulus Conditioned | 13500 MPa |
| Tensile Strength Conditioned | 160 MPa |
| Elongation At Break Conditioned | 2.5% |
| Charpy Impact Strength 23 C Conditioned | 55 kJ/m² |
| Charpy Notched Impact Strength 23 C Conditioned | 12 kJ/m² |
| Heat Deflection Temperature 1 80 Mpa | 190 °C |
| Heat Deflection Temperature 0 45 Mpa | 210 °C |
| Melting Point | 222 °C |
| Glass Transition Temperature | 60 °C |
| Vicat Softening Temperature B50 | 210 °C |
As an accredited EMS-Grivory Grilamid TRVX-50X9 black 9230 Nylon 12, 50% Glass Fiber Reinforced, Conditioned factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 25 kg sealed bags of black, conditioned Grilamid TRVX-50X9 nylon 12 pellets, 50% glass fiber reinforced, ready for processing. |
| Container Loading (20′ FCL) | 20′ FCL: Grilamid TRVX-50X9 conditioned nylon pellets packed in sealed bags on shrink-wrapped pallets, approximately 20–25 metric tons per container. |
| Shipping | This material is supplied as conditioned nylon 12 pellets, 50% glass fiber reinforced, in sealed moisture-barrier bags. Ship as standard dry cargo, non-hazardous. Keep pallets dry and protected from rain, humidity, and excessive heat. Avoid puncturing packaging to preserve low moisture content. Handle with standard equipment; store in original containers until use. |
| Storage | Store this conditioned Nylon 12 grade in its original, tightly sealed container in a cool, dry, well-ventilated area. Protect from direct sunlight, heat, and humidity to prevent moisture absorption and property degradation. Avoid temperature extremes and condensation. Reseal promptly after each use and use within the recommended shelf life to maintain performance. |
| Shelf Life | Shelf life is typically 2 years when stored dry, cool, and in original unopened packaging to prevent moisture absorption. |
In phase-separated gasoline environments where quick-connector bodies must retain O-ring sealing force after 1,000 h immersion at 60 °C in ASTM D543 CE10 reference fuel, EMS-Grivory Grilamid TRVX-50X9 black 9230 is specified as a 50 wt% glass-fiber-reinforced PA12 alternative to glass-filled PA66 because the PA12 matrix exhibits lower equilibrium moisture uptake under ISO 62 conditions at 23 °C/50% RH, typically in the range of 0.4–0.7 wt% for glass-filled grades. Compliance testing for a fuel-system connector platform normally pairs SAE J2044 dimensional validation with ISO 527-2/1A tensile bars cut from end-gated plaques and ISO 179-1/1eA notched Charpy specimens conditioned per ISO 1110. The compound is not modified at the press; the 50 wt% glass loading is fixed at compounding, and regrind from hot-runner sprues is allowed up to 20 wt% with virgin pellets only when granulate size is controlled at 3–5 mm and aspiration removes glass fines below 0.5 mm. Predrying in a desiccant-bed hopper at 80 °C for 4–6 h reduces moisture to 0.08 wt% or lower; direct feeding of the conditioned pellets without drying produces surface splay at melt temperatures above 250 °C. Injection molding on a 120–150 tonne clamp machine with a 40 mm three-zone screw, check-ring clearance 0.25–0.35 mm, and a 0.8 mm valve-gate hot runner uses melt temperature 255–270 °C, mold temperature 80–100 °C, fill speed 80–120 mm/s, and hold pressure 60–80 MPa for 6–10 s. After demolding, connectors are placed in a moisture cabinet at 23 °C/50% RH until equilibrium, because the conditioned state raises notched impact energy and stabilizes crystallinity. Terminal components are PA12 quick-connector bodies, retainer clips, and fuel-tank test port caps; weld lines must be positioned away from the O-ring groove using sequential valve gating.
Coolant flange bosses in passenger cooling circuits face sustained clamp load under through-bolt torque of 6–10 N·m at continuous temperatures of 105–110 °C with a 50:50 ethylene glycol/water mixture at 1.4–1.6 bar. Glass-fiber-reinforced PA12 conditioned to ISO 1110 is used because the PA12 matrix resists hydrolysis in hot glycol more readily than PA66 at equal fiber loading; the 50 wt% glass content reduces creep but creates anisotropic differential shrinkage around metallic inserts. ISO 899-1 creep-modulus tests at 105 °C, 1,000 h, 10 MPa stress, and ISO 527-2/1A tensile tests after 1,000 h immersion in 50:50 glycol/water per ASTM D543 form the compliance basis. Insert overmolding uses the same granulate without let-down; a regrind fraction of 15 wt% maximum is applied only to non-mating sealing faces because glass-fiber attrition reduces weld-line strength at the insert boundary. Drying at 80 °C for 6 h, melt temperature 260–275 °C, mold temperature 90–120 °C, and a two-stage injection profile with fill-pack transition at 95–98% cushion are required; a cushion below 3 mm causes glass-rich dead zones. Sequential valve gating with gate delay of 0.5–1.0 s shifts the knit line away from the bolt-hole boss. Post-molding, the flange is stored in 23 °C/50% RH for 48–96 h to reach conditioned equilibrium before assembly torque validation. Terminal parts are thermostat housings, coolant pipe flanges, and degas-tank mounting flanges. If melt residence time exceeds 8 min at 270 °C, PA12 matrix degradation produces a caramel-colored surface and a drop in boss failure torque; such lots are rejected by a 2.5 N·m minimum seating-torque audit.
| Application zone | Standard / method | Exposure condition | Property monitored |
|---|---|---|---|
| Fuel quick connectors | SAE J2044, ISO 527-2 | 60 °C, CE10 fuel, 1,000 h | tensile strength retention |
| Coolant flange | ISO 899-1, ASTM D543 | 105 °C, 50:50 glycol/water, 1,000 h | creep modulus, weight change |
| Pneumatic manifold | ISO 8573-1, ISO 6358 | 10 bar, dew point 10 °C, 168 h | Cv drift, dimensional change |
| Pump volute insert | ISO 5199, ISO 148-1 | ISO VG 46 oil, 60 °C, 168 h | impact retention, weight change |
| Off-highway sensor housing | ISO 4892-2, ISO 527-2 | xenon arc, 1,000 h | tensile strength retention, ΔE |
| Engine-bay line separator | ISO 175, ISO 179-1 | 90 °C, 30:70 glycol/water, 168 h | impact retention, stress cracking |
Because compressed-air manifolds in industrial automation accumulate water and trace mineral oil at dew point, 50 wt% glass-reinforced PA12 is applied to milled manifold bodies that must hold 10 bar working air at 10 °C dew point under ISO 8573-1 class 6.4.4 without wall swelling. Unlike PA6 or PA66, PA12 matrices absorb less moisture at equilibrium, so the glass-reinforced compound exhibits reduced post-molding dimensional change in humid compressor rooms. The compliance assessment includes ISO 6358 flow-capacity tests for Cv drift before and after 168 h exposure to 85% RH at 23 °C, and ISO 527-2/1A tensile tests on machined bars cut from gas-counter-pressure molded plaques. The formulation is not altered downstream; the black 9230 grade already contains carbon black and a heat-stabilizer package, and no external lubricant is permitted because lubricant bloom contaminates solenoid valve seats. Regrind is capped at 20 wt% and must be dried separately at 80 °C for 4 h, as glass-filled regrind has higher surface moisture than virgin pellets. Injection molding on a 150 tonne hydromechanical press with a 50 mm reciprocating screw uses melt temperature 250–265 °C, mold temperature 95–110 °C, back pressure 0.5–1.0 MPa, screw speed 60–80 rpm, and hold pressure 65–85 MPa for 8–12 s. To reduce porosity in thick sections above 8 mm, gas counterpressure of 2–4 bar is applied in the mold cavity during fill; vacuum of −0.8 bar is drawn through porous steel inserts. Terminal components are 7-station pneumatic manifold blocks, solenoid-valve mounting plates, and compressed-air gun bodies.
For centrifugal pumps handling ISO 5199 design fluids such as mineral oil, aliphatic hydrocarbons, and neutral aqueous slurries, 50 wt% glass-reinforced PA12 volute inserts and wear rings replace cast iron when service temperature remains below 80 °C and the pump casing provides external pressure containment. The PA12 matrix provides resistance to saturated hydrocarbons at temperatures up to 60 °C; continuous immersion in aromatic hydrocarbons above 20 vol%, ketones above 5 vol%, or mineral acids above 10 wt% is outside the material boundary. Compliance is verified through ASTM D543 immersion at 60 °C for 168 h in ISO VG 46 mineral oil, followed by ISO 148-1 Charpy impact and ISO 527-2/1A tensile retention; a weight change exceeding 0.5 wt% triggers rejection for rotating service. The compound is used without dry blending; regrind is not permitted for impeller shrouds or wear rings because imbalance from graded glass distribution exceeds 0.3 g·mm at 3,000 rpm. Processing requires a dehumidifying hopper at 80 °C for 6 h, melt temperature 255–275 °C, mold temperature 85–110 °C, and a screw L/D of 20:1 with a smear-tip check ring to avoid dead spots. The thick-walled volute is molded with a variable holding-pressure profile lasting 20–30 s; sink marks at the cutwater are controlled by packing at 85 MPa for the first 10 s and 50 MPa for the remaining hold. Post-mold conditioning at 23 °C/50% RH for 7 days stabilizes impact toughness before machining of the ring groove. Terminal components are volute liners, impeller wear rings, and shaft guard inserts; the glass fibers orient along the flow path at the cutwater and create a linear abrasion groove after 2,000 h in water containing 5 wt% silica, which is classified as abrasive wear rather than chemical attack.
Agricultural and off-highway sensor housings combine long-term xenon-arc UV exposure, ammonium nitrate fertilizer dust, vibration from 4-stroke diesel engines, and occasional contact with hydraulic oil at 70–80 °C; EMS-Grivory TRVX-50X9 black 9230 enters these designs because the carbon-black pigmentation in grade 9230 prevents surface chain scission and the 50 wt% glass reinforcement raises heat-deflection temperature above unreinforced PA12. Compliance testing uses ISO 4892-2 xenon-arc weathering at 1,000 h for ΔE < 1.5 and ISO 527-2/1A tensile-strength retention above 80% after exposure; ISO 179-1/1eA notched Charpy impact at −30 °C is monitored because field failures occur at brittle-mode cracks near mounting bosses. The compound's formulation is fixed; regrind from runners is limited to 25 wt% with virgin material and only if the granulate is dried to 0.08 wt% before molding. Melt processing on a 100–130 tonne clamp machine uses a 35 mm screw, melt temperature 245–260 °C, mold temperature 70–90 °C, injection speed 60–100 mm/s, and hold pressure 55–75 MPa. Low mold temperature reduces cycle time, but the trade-off is higher frozen-in orientation and deflection on flat covers; a post-molding thermal straightening fixture at 120 °C for 20 min corrects warp below 0.3 mm across a 150 mm span. Terminal products are GPS receiver housings, implement controller enclosures, and hydraulic manifold end-caps. Chemical resistance is validated with diesel, ISO 46 hydraulic oil, and calcium chloride road spray; continuous exposure to hot concentrated agricultural acids is not permitted.
Engine-bay hydraulic line separators and battery-cooling line clamps molded from 50 wt% glass-reinforced PA12 are evaluated when the part must survive calcium chloride road spray at −20 °C, glycol splashing at 90 °C, and transient under-hood air temperatures up to 130 °C during soak. The material's PA12 matrix provides lower glycol absorption than PA66 and lower density than zinc die-cast aluminum at equivalent boss stiffness. Compliance for this part class uses ISO 175 chemical-resistance checks after 168 h immersion in 30:70 ethylene glycol/water at 90 °C, ISO 527-2/1A tensile tests at 23 °C and −20 °C, and ISO 179-1/1eA impact after thermal aging at 130 °C for 500 h. The specified black 9230 colorant is already compounded, so no additional masterbatch is needed; regrind from cold-runner gates may be used at up to 15 wt% for non-latching features only. Predrying at 80 °C for 4 h is followed by injection molding with melt temperature 250–265 °C, mold temperature 75–95 °C, fill speed 70–110 mm/s, and hold pressure 60–80 MPa for 5–8 s. The clip features use two-stage ejection without mold release; forced ejection before the part cools below 120 °C creates white stress marks at the hinge root. Post-molding conditioning at 23 °C/50% RH for 24–48 h is required before snap-fit assembly to avoid brittle latching failure. Terminal components are hydraulic line separators, cable harness clips, and battery thermal management line brackets. If the material is exposed to 150 °C engine soak for more than 100 h, published data for this specific grade is limited and component-level validation is required before release.
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EMS-Grivory Grilamid TRVX-50X9 black 9230 is a conditioned PA12-GF50 injection-moulding compound: a polyamide 12 matrix loaded with 50% glass fiber by mass. The grade identifier TRVX-50X9 is supplier-specific and the suffix black 9230 denotes a colour masterbatch formulation, not a separate base resin. Under ISO 1043, the material family is PA12-GF50. The term “conditioned” describes a defined moisture state used for mechanical property reporting, not a permanently softened or plasticized grade. In practice, conditioned data are generated after accelerated moisture uptake according to ISO 1110, followed by equilibration in 23 °C/50 % RH or after storage to equilibrium in standard atmosphere; the moisture content of the moulded specimens is higher than dry-as-moulded specimens but lower than that of PA6 or PA66 at the same humidity. This moisture state is significant because PA12 has a lower amide-group density than PA6 and PA66, giving lower equilibrium water absorption and a smaller dry-to-conditioned property shift. The 50% glass-fiber reinforcement further reduces the absolute moisture pickup by lowering the hygroscopic matrix volume fraction.
Conditioned mechanical values differ from dry-as-moulded values mainly through moisture-induced plasticization of the PA12 matrix. At 50% glass loading, the fiber lattice limits the macroscopic softening effect, but the matrix still shows reduced tensile modulus and yield stress and often a small increase in notched impact strength. The relevant test methods are ISO 527-1:2019 and ISO 527-2 for tensile properties, ISO 179-1/1eA for notched Charpy impact, ISO 1183-1 for density, and ISO 62 for water absorption. For PA12-GF50 grades in general, tensile modulus at 1 mm/min typically ranges from 14,000 MPa to 16,000 MPa dry and from 12,000 MPa to 13,500 MPa conditioned. Tensile strength at 5 mm/min typically ranges from 170 MPa to 190 MPa dry and from 125 MPa to 140 MPa conditioned. Elongation at break is usually below 4% in both states. These values are not lot acceptance criteria; the supplier certificate and technical data sheet control the specific batch. The general trend is a 10–20 % reduction in tensile modulus after conditioning.
Test methods used to verify the conditioned property profile include the following matrix.
| Property | Standard method | Relevance |
|---|---|---|
| Conditioning state | ISO 1110 | Accelerated moisture uptake for property reporting |
| Tensile properties | ISO 527-1:2019 / ISO 527-2 | Modulus, strength, strain at break |
| Charpy impact | ISO 179-1/1eA | Notched impact strength |
| Density | ISO 1183-1:2019 | Glass-fiber content verification |
| Water absorption | ISO 62 | Moisture uptake comparison |
| Mould shrinkage | ISO 294-4 | Tool compensation |
The comparison with PA66-GF50 is decisive in many specifications. PA66-GF50 can provide a higher heat deflection temperature, but its equilibrium moisture absorption at 23 °C/50 % RH is approximately 1.5–2.5 wt% for the unfilled matrix, whereas PA12 absorbs below roughly 0.9 wt%. In a 50% glass-filled compound, the absorbed water values scale lower for both families because the glass fiber is non-hygroscopic. The consequence is that PA12-GF50 shows smaller wet-dimension changes and better retention of electrical insulation properties in humid environments. However, PA12's melting point near 175–180 °C limits its continuous thermal performance relative to PA66; comparison should therefore be based on conditioned properties, not dry-as-moulded values.
Although the product is designated conditioned for property reporting, melt processing is generally carried out at low residual moisture. If conditioned pellets are taken directly from open storage, the absorbed moisture may exceed the processing limit and cause hydrolytic degradation, splay, or inconsistent mould filling. A residual moisture limit of 0.10 wt% or lower is a typical starting point for 50% glass-filled PA12; this is measured by Karl Fischer titration or a moisture analyzer calibrated for polyamides. Drying is normally conducted in a dehumidifying hopper dryer with a dew point of -20 °C or lower, air temperature of 80 °C, and residence time of 4–12 h depending on pellet bed depth and initial moisture. Pellets should not be dried at temperatures above 90 °C for extended periods because surface oxidation and yellowing may occur.
A typical barrel profile for PA12-GF50 runs from 230 °C at the feed throat to 260 °C at the nozzle, with the melt temperature controlled between 240 °C and 260 °C. Operating above 280 °C may exceed the thermal stability of the polyamide matrix unless the residence time is shortened and documented by thermal stability data. Mould temperature is usually held between 60 °C and 100 °C; the higher end of this range improves fiber wet-out and weld-line strength but increases crystallization time and cycle time. Screw geometry for highly filled PA12 typically uses an L/D of 18:1–22:1 and a compression ratio of 2.0:1–2.5:1, with a check ring designed for abrasive compounds. Because 50% glass fibers are highly abrasive, bimetallic barrel lining, hardened screw flights, and hardened nozzle tips are specified on production equipment. Holding pressure and back pressure should be moderate; back pressure around 30–70 bar hydraulic is often sufficient to homogenize the melt, while excessive back pressure can fracture fibers and lower tensile properties.
At 50% glass loading, the orientation of fibers during injection mould filling creates property anisotropy that must be considered before part approval. The melt flow field aligns fibers parallel to the local velocity vector; when the melt cools, this orientation is frozen into the solid part. As a result, tensile modulus in the flow direction is commonly higher than in the cross-flow direction, and mould shrinkage measured according to ISO 294-4 is anisotropic. In flat plaques, flow-direction shrinkage often falls in the range 0.1–0.3 % and transverse shrinkage in the range 0.6–1.0 %, although thicker sections and slower cooling can reduce these values. The linear coefficient of thermal expansion tested according to ISO 11359-2 may also show a ratio of roughly 3:1 between transverse and flow directions. Tool design should therefore avoid assuming isotropic shrinkage; if universal shrinkage of 0.5 % is applied to a complex glass-reinforced PA12 component, the resulting dimensions can depart from drawing requirements.
Weld lines created by multiple gates, holes, or inserts are more severe in this product than in unfilled grades because the glass fibers do not migrate across the weld interface. Weld-line tensile strength retention measured with ISO 527-2 specimens is frequently below 0.6 relative to un-welded specimens for 50% glass-filled polyamides; in some gate configurations, retention can fall below 0.5. Actual retention depends on melt temperature at the meeting point, mould temperature, venting, packing pressure, and gate geometry. On production injection-moulding machines, clamp force requirements for structural parts made from this grade are typically 3–6 kN/cm² based on projected area. Injection pressure at the screw tip can reach 800–1,400 bar for long flow paths; if the machine has insufficient hydraulic pressure or clamp force, short shots or flash may occur. Venting depth should be kept below 0.02 mm for glass-filled PA12 to prevent flash while allowing gas evacuation at the end of fill. Poor venting at weld lines can lead to gas burn marks and localized strength loss. Short-shot studies and weld-line tensile bars cut from moulded parts are recommended before tool steel is finalized.
PA12 is less susceptible to hydrolysis than PA6 or PA66 because the lower amide-group concentration reduces the rate of hydrolytic chain scission in hot water and coolant. This property makes conditioned PA12-GF50 suitable for pump housings, valve bodies, coolant line connectors, fuel-line retainers, and sensor housings where moisture or road salt is continuously present. Chemical resistance information should be generated according to ISO 175 or ISO 1817 by measuring changes in mass, tensile properties, and dimensions after immersion in the target fluid. The glass reinforcement increases stiffness but also reduces strain at break, so the stress-cracking response of a highly reinforced PA12 cannot be inferred from unfilled PA12 data. Heat deflection temperature under 1.82 MPa according to ISO 75-2 is commonly between 160 °C and 175 °C for 50% glass-filled PA12, while the melting point determined by ISO 11357-3 is near 175–180 °C. Continuous-use temperature in air is typically limited to 100–120 °C for glass-reinforced PA12 unless long-term heat-ageing data demonstrate otherwise. Above this range, thermo-oxidative degradation of the methylene segments can reduce toughness before significant loss of stiffness occurs. For outdoor applications, the black 9230 colourant may contain carbon black, which tends to improve UV resistance, but weatherability should be verified with supplier data generated under ISO 4892-2 or ISO 4892-3. If long-term heat-ageing data for the exact grade are unavailable, resin-family data should not be extrapolated for safety-critical parts.
Regulatory statements for this product are delivered through the supplier’s lot certificate and material compliance documentation. REACH, RoHS 2011/65/EU, and the relevant chemicals-management obligations should be confirmed in writing for the production site. Electrical insulation data, where required, are typically measured with IEC 62631-3-1 or IEC 60243; the addition of conductive carbon black in some black grades can reduce surface resistivity, so resistivity values must be taken from the specific black 9230 formulation. The grade is not automatically suitable for potable-water or food-contact service; any FDA 21 CFR or drinking-water compliance must be confirmed by the supplier for the exact product and colour.
Compared with unfilled PA12, TRVX-50X9 black 9230 increases tensile modulus by a factor of roughly 4–5 and reduces mould shrinkage and thermal expansion at the cost of much lower strain at break. Compared with 30% glass-filled PA12, the 50% reinforcement raises stiffness and strength, lowers impact toughness, and increases the risk of anisotropic shrinkage and weld-line weakness. Compared with PA66-GF50, this PA12 grade provides lower moisture absorption, better dimensional stability under humidity cycling, and generally better low-temperature impact, but usually lower heat deflection temperature and higher resin cost. The selection between these grades therefore rests on the humidity and chemical environment, the maximum continuous-use temperature, and the dimensional requirements after moisture exposure. It is not sufficient to compare dry-as-moulded tensile values; the conditioned property profile and the specific load state in the moulded part determine whether PA12-GF50 is the appropriate material.
