PA6-3-T
PA6-3-T (Trogamid CX/T, Evonik) is an amorphous transparent polyamide supplied natural, UV-stabilized, impact-modified, medical, 30% glass-filled and as extruded sheet.
Reference datasheet — PA6-3-T is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
PA6-3-T grades and fills
PA6-3-T is supplied in 2 conditions, soft to hard.
Compare all 2 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
Impact-modified (toughened) transparent | Use where notched impact and drop performance dominate and a slight loss of clarity/stiffness is acceptable. | 60 | 62 | 120 | 78 Shore D |
30% glass-fiber reinforced | Choose only when stiffness, creep resistance and dimensional stability at temperature matter more than transparency, which is lost entirely. | 150 | 3 |
Supply forms, finishes and certifications
Ways PA6-3-T is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
EXT-SHEET | Extruded sheet / rod stock | Supply form |
MED | Medical / food-contact certified grade | Certification |
UV | UV-stabilized transparent grade | Grade option |
NATDefault | Unfilled / Natural transparent | Standard supply |
What is PA6-3-T?
PA6-3-T (Trogamid CX/T, Evonik) is an amorphous transparent polyamide supplied natural, UV-stabilized, impact-modified, medical, 30% glass-filled and as extruded sheet. It is chosen where nylon toughness and chemical resistance must be combined with optical clarity, offering 80 MPa tensile strength, 70% elongation, a 2.9 GPa modulus and service to 110 C, with low isotropic shrinkage from the amorphous structure. It is less stiff and less heat-resistant than filled semicrystalline nylons and can stress-craze in solvent contact; PC is the usual alternative. PA6-3-T has a density of 1.12 g/cm³ (0.0405 lb/in³), lighter than 64% of polymer grades. Its glass-transition temperature is 150°C (302 °F). PA6-3-T has a yield strength of 78 MPa (11.3 ksi) and a tensile strength of 80 MPa (11.6 ksi) — stronger than 86% of polymer grades. Elongation at break is 70% and the elastic modulus is 2.9 GPa (0.421 Msi).
What is PA6-3-T used for?
- eyewear frames
- medical device housings
- transparent connectors
- sight glasses
Advantages
- Polishes to a fine finish — 88/100, better than 95% of polymer grades
- High strength — 78 MPa (11.3 ksi), better than 86% of polymer grades
- Good UV / weathering resistance — 55/100, better than 77% of polymer grades
- Easy to machine — 72/100, better than 76% of polymer grades
Limitations
- High embodied carbon — 8 kg CO₂/kg, worse than 83% of polymer grades
PA6-3-T properties
Typical room-temperature values; bars are the position among polymer grades.
Physical6
PA6-3-T has a density of 1.12 g/cm³ (0.0405 lb/in³), lighter than 64% of polymer grades. Its glass-transition temperature is 150°C (302 °F).
Mechanical13
PA6-3-T has a yield strength of 78 MPa (11.3 ksi) and a tensile strength of 80 MPa (11.6 ksi) — stronger than 86% of polymer grades. Elongation at break is 70% and the elastic modulus is 2.9 GPa (0.421 Msi).
Thermal11
PA6-3-T is rated for continuous service to 110°C (230 °F). It conducts heat at 0.23 W/m·K (0.133 BTU/hr·ft·°F), better than 65% of polymer grades. Thermal expansion is 70 µm/m·K (38.9 µin/in·°F).
Electrical7
PA6-3-T is an electrical insulator with a dielectric strength of 30 kV/mm (762 V/mil) and a resistivity of 1×10¹³ Ω·m.
Chemical & Environmental3
Corrosion resistance is excellent (85/100), better than 65% of polymer grades. UV resistance is good.
Sustainability4
Producing a kilogram of PA6-3-T takes about 130 MJ of energy and emits 8 kg of CO₂ — more than 77% of polymer grades. Typical recycled content is 0%.
Manufacturability7
PA6-3-T's machinability is very good (72/100, better than 76% of polymer grades); weldability good (65/100); formability good (60/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the polymer family
Yield strength against density for every polymer grade FabDigit runs. PA6-3-T is highlighted; hover a dot for its name, or open the interactive family chart.
Working with PA6-3-T
Is PA6-3-T easy to machine?
Machines cleanly with sharp positive-rake tools, high speed and low feed; use air or mist cooling and anneal (~120 °C) before finishing to avoid stress crazing in clear parts.
Can PA6-3-T be welded?
Joinable by ultrasonic, hot-plate, vibration and laser welding; solvent bonding is possible but risks stress cracking — prefer adhesive or welded joints on stressed clear parts.
Can PA6-3-T be formed, bent or molded?
Dry pellets to <0.05 % moisture (80 °C, 4–6 h), melt 250–290 °C, mold 60–110 °C; hot molds and low shear give best clarity, and shrinkage is low and isotropic because the polymer is amorphous.
PA6-3-T chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| trimethylhexamethylenediamine (2,2,4-/2,diamine component, mol% of repeat unit | 48 – 52 | 50 |
| terephthalic aciddiacid component, mol% of repeat unit | 48 – 52 | 50 |
| stabilizers / processing additivesheat and UV stabilizers, lubricant | 0.1 – 1.5 | 0.5 |
What surface finishes work on PA6-3-T?
Takes optical polishing, hard/anti-fog coatings and pad printing well; avoid alcohol-based cleaners and solvent-heavy paints on stressed surfaces.
How much does PA6-3-T cost?
PA6-3-T is a high-cost polymer ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
PA6-3-T — frequently asked
What is PA6-3-T used for?
PA6-3-T is typically used for eyewear frames, medical device housings, transparent connectors and sight glasses. In short: transparent amorphous nylon; clarity with nylon chemical resistance; low isotropic shrinkage.
What is the yield strength of PA6-3-T?
PA6-3-T has a typical yield strength of 78 MPa (11.3 ksi) and a tensile strength of 80 MPa (11.6 ksi) — stronger than 86% of polymer grades. Strength varies by condition: see the 2 listed tempers.
Is PA6-3-T easy to machine?
Yes — machinability is rated very good (72/100, better than 76% of polymer grades). Machines cleanly with sharp positive-rake tools, high speed and low feed; use air or mist cooling and anneal (~120 °C) before finishing to avoid stress crazing in clear parts.
Can PA6-3-T be welded?
Yes — weldability is rated good (65/100). Joinable by ultrasonic, hot-plate, vibration and laser welding; solvent bonding is possible but risks stress cracking — prefer adhesive or welded joints on stressed clear parts.
What surface finishes work on PA6-3-T?
Takes optical polishing, hard/anti-fog coatings and pad printing well; avoid alcohol-based cleaners and solvent-heavy paints on stressed surfaces.
Can PA6-3-T be formed, bent or molded?
Dry pellets to <0.05 % moisture (80 °C, 4–6 h), melt 250–290 °C, mold 60–110 °C; hot molds and low shear give best clarity, and shrinkage is low and isotropic because the polymer is amorphous.
What is the maximum service temperature of PA6-3-T?
PA6-3-T is rated for continuous use to about 110°C (230 °F), and briefly to 145°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does PA6-3-T cost?
PA6-3-T is a high-cost polymer ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- Trogamid T5000 / Trogamid CX transparent polyamide datasheets — Evonik Industries (2023)
- CAMPUS plastics database — amorphous polyamide (PA6-3-T) entries — CWFG / CAMPUS consortium (2023)
- Engineering Plastics — Engineered Materials Handbook Vol. 2 — ASM International (1988)
- ISO 527 / ISO 178 / ISO 75 test methods for plastics — ISO (2019)
- UL Prospector polymer property listings — transparent polyamides — UL Solutions (2024)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.