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PA6-3-T IM

Grade

IM = impact-modified (toughened) transparent

Use where notched impact and drop performance dominate and a slight loss of clarity/stiffness is acceptable.

High cost $$$$

Values for the IM condition

Other PA6-3-T grades and fills

PA6-3-T is listed in 2 conditions; see the grade overview at PA6-3-T.

Compare all 2 grades and fillsHide
Grade · open for datasheetBest forYield MPaTensile MPaElong. %Hardness
IMThis page
Impact-modified (toughened) transparent
Use where notched impact and drop performance dominate and a slight loss of clarity/stiffness is acceptable.606212078 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.—1503—

What is PA6-3-T IM?

PA6-3-T IM is PA6-3-T in the IM grade — use where notched impact and drop performance dominate and a slight loss of clarity/stiffness is acceptable. PA6-3-T IM has a yield strength of 60 MPa (8.7 ksi) and a tensile strength of 62 MPa (8.99 ksi) — stronger than 69% of polymer grades. Elongation at break is 120% and the elastic modulus is 2.2 GPa (0.319 Msi). PA6-3-T IM 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).

Advantages

  • Polishes to a fine finish — 88/100, better than 95% of polymer grades
  • Good UV / weathering resistance — 55/100, better than 77% of polymer grades

Limitations

  • High embodied carbon — 8 kg CO₂/kg, worse than 83% of polymer grades

PA6-3-T IM properties

Typical room-temperature values for PA6-3-T IM; 26 are specific to this condition. Other listed values are PA6-3-T reference data and may not represent this condition. Bars are the position among polymer grades.

Physical6

PA6-3-T IM 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).

Density1.12 g/cm³0.04 lb/in³
Glass Transition (Tg)150°C302 °F
Water Absorption (24 h)0.4%
Water Absorption (Saturation)3%
Refractive Index1.566
Light Transmission84%

Mechanical13

PA6-3-T IM has a yield strength of 60 MPa (8.7 ksi) and a tensile strength of 62 MPa (8.99 ksi) — stronger than 69% of polymer grades. Elongation at break is 120% and the elastic modulus is 2.2 GPa (0.319 Msi).

Elastic (Young's) Modulus2.2 GPa0.32 Msi
Shear Modulus1.1 GPa0.15 Msi
Poisson's Ratio0.4
Tensile Strength (Ultimate)62 MPa9 ksi
Yield Strength (0.2% offset)60 MPa8.7 ksi
Elongation at Break120%
Compressive Strength70 MPa10.2 ksi
Flexural Strength85 MPa12.3 ksi
Flexural Modulus2.1 GPa0.3 Msi
Izod Impact, Notched130 J/m2.4 ft·lbf/in
Hardness, Shore D78 Shore D
Hardness, Rockwell M75 HRM
Hardness, Rockwell R112 HRR

Thermal11

PA6-3-T IM is rated for continuous service to 100°C (212 °F). It conducts heat at 0.22 W/m·K (0.127 BTU/hr·ft·°F), better than 60% of polymer grades. Thermal expansion is 70 µm/m·K (38.9 µin/in·°F).

Thermal Conductivity0.22 W/m·K0.13 BTU/hr·ft·°F
Specific Heat Capacity1,600 J/kg·K0.38 BTU/lb·°F
Thermal Expansion (CTE, 20–100 °C)70 µm/m·K38.9 µin/in·°F
Max Service Temperature (continuous)100°C212 °F
Min Service Temperature-40°C-40 °F
Heat Deflection Temp. @ 0.45 MPa132°C270 °F
Heat Deflection Temp. @ 1.8 MPa115°C239 °F
Vicat Softening Point (B50)140°C284 °F
Flammability (UL 94)HB (1.5 mm) for standard unfilled grades; no V-rating without FR package
Limiting Oxygen Index23%
Max Service Temperature (short-term)145°C293 °F

Electrical7

PA6-3-T IM is an electrical insulator with a dielectric strength of 30 kV/mm (762 V/mil) and a resistivity of 1×10¹³ Ω·m.

Electrical Resistivity1×10¹³ Ω·m3.94×10²⁰ µΩ·in
Dielectric Strength30 kV/mm762 V/mil
Dielectric Constant (1 MHz)3.1
Dissipation Factor (1 MHz)0.02
Volume Resistivity1×10¹⁵ Ω·cm
Surface Resistivity1×10¹⁴ Ω
Comparative Tracking Index (CTI)600 V

Chemical & Environmental3

Corrosion resistance is very good (83/100), better than 58% of polymer grades. UV resistance is good.

Corrosion ResistanceVery good83/100
UV / Weathering ResistanceGood55/100
Chemical Resistance SummaryGood against fuels, oils, greases, dilute acids/alkalis, aqueous salt solutions and many cleaning agents; attacked or stress-cracked by alcohols (methanol/ethanol), ketones, chlorinated solvents, phenols, formic/concentrated mineral acids — always test molded-in stress plus solvent.

Sustainability4

Producing a kilogram of PA6-3-T IM takes about 130 MJ of energy and emits 8 kg of CO₂ — more than 77% of polymer grades. Typical recycled content is 0%.

Embodied Energy (primary production)130 MJ/kg55,890 BTU/lb
Embodied Carbon (primary production)8 kg CO₂/kg
Embodied Water350 L/kg41.9 gal/lb
Typical Recycled Content0%

Manufacturability7

PA6-3-T IM's machinability is good (62/100, better than 60% of polymer grades); weldability very good (70/100); formability good (60/100).

MachinabilityGood62/100
WeldabilityVery good70/100
Formability (cold)Good60/100
PolishabilityExcellent88/100
Mold Shrinkage0.6%
Processing Melt Temperature (typ.)275°C527 °F
Mold Temperature (typ.)80°C176 °F

Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.

Working with PA6-3-T IM

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.

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.

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.

ElementSpec limit (wt %)Nominal
trimethylhexamethylenediamine (2,2,4-/2,diamine component, mol% of repeat unit48 – 5250
terephthalic aciddiacid component, mol% of repeat unit48 – 5250
stabilizers / processing additivesheat and UV stabilizers, lubricant0.1 – 1.50.5

PA6-3-T IM — frequently asked

What is PA6-3-T IM used for?

PA6-3-T IM 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 IM?

PA6-3-T IM has a typical yield strength of 60 MPa (8.7 ksi) and a tensile strength of 62 MPa (8.99 ksi) — stronger than 69% of polymer grades. Strength varies by condition: see the 2 listed tempers.

Is PA6-3-T IM easy to machine?

Reasonably — machinability is rated good (62/100, better than 60% 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 IM be welded?

Yes — weldability is rated very good (70/100). 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 IM?

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 IM 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 IM?

PA6-3-T IM is rated for continuous use to about 100°C (212 °F), and briefly to 145°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.

Sources

  1. Trogamid T5000 / Trogamid CX transparent polyamide datasheets — Evonik Industries (2023)
  2. CAMPUS plastics database — amorphous polyamide (PA6-3-T) entries — CWFG / CAMPUS consortium (2023)
  3. Engineering Plastics — Engineered Materials Handbook Vol. 2 — ASM International (1988)
  4. ISO 527 / ISO 178 / ISO 75 test methods for plastics — ISO (2019)
  5. UL Prospector polymer property listings — transparent polyamides — UL Solutions (2024)

Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.