PA612 PTFE-LUB
Additive grade
For unlubricated gears, bushings and slides — lowers friction and PV wear at some cost in strength.
Values for the PTFE-LUB condition
Other PA612 grades and fills
PA612 is listed in 12 conditions; see the grade overview at PA612.
Compare all 12 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
Impact-modified / super-tough | Elastomer-toughened compound for cold-impact fuel/air lines and clips that must survive −40 °C hits. | 42 | 45 | 300 | 70 Shore D |
Unfilled natural, conditioned (50 % RH / equilibrium) | Use for real service conditions: ~1.0–1.3 % absorbed water softens and toughens the part; stiffness drop is far smaller than for PA6/PA66. | 45 | 48 | 250 | 75 Shore D |
PTFE-LUBThis page Internally lubricated (PTFE / MoS2 / oil), bearing grade | For unlubricated gears, bushings and slides — lowers friction and PV wear at some cost in strength. | 50 | 52 | 40 | 77 Shore D |
ESD / antistatic | Choose for fuel-line and fuel-handling parts needing static dissipation to avoid spark risk. | 53 | 55 | 25 | 80 Shore D |
High-viscosity extrusion grade | High molecular weight for melt strength in tube/filament extrusion and machinable rod & plate; higher toughness, slower cycle. | 53 | 55 | 250 | 78 Shore D |
Heat-stabilised | Copper-halide or organic heat-stabiliser package for long-term 120–140 °C air/oil exposure in fuel and brake lines. | 55 | 57 | 200 | 78 Shore D |
NAT-DAMDefault Unfilled natural, dry-as-moulded | Baseline injection/extrusion grade evaluated dry — use these numbers for short-term stiffness, tolerances and electrical design. | 58 | 60 | 120 | 79 Shore D |
Mineral-filled | Pick when low warpage and isotropic shrinkage matter more than peak strength (covers, trim, painted parts). | 62 | 65 | 12 | 82 Shore D |
15 % glass-fibre reinforced | Moderate stiffness/creep upgrade while keeping useful ductility and a smooth surface. | — | 105 | 6 | — |
Flame retardant, UL 94 V-0 | Compounded (usually GF-reinforced) FR grade for connectors and cable accessories requiring V-0 at 1.5 mm. | 118 | 120 | 2.5 | 86 Shore D |
30 % glass-fibre reinforced | Workhorse structural grade for gears, housings and quick-connectors needing high stiffness with low moisture drift. | — | 155 | 3.5 | 92 HRM |
50 % glass-fibre reinforced | Maximum stiffness/creep resistance for metal-replacement brackets; brittle and abrasive to tooling. | — | 195 | 2.5 | — |
What is PA612 PTFE-LUB?
PA612 PTFE-LUB is PA612 in the PTFE-LUB grade — for unlubricated gears, bushings and slides — lowers friction and PV wear at some cost in strength. PA612 PTFE-LUB has a yield strength of 50 MPa (7.25 ksi) and a tensile strength of 52 MPa (7.54 ksi) — stronger than 52% of polymer grades. Elongation at break is 40% and the elastic modulus is 2.2 GPa (0.319 Msi). PA612 PTFE-LUB has a density of 1.12 g/cm³ (0.0405 lb/in³), lighter than 64% of polymer grades. Its glass-transition temperature is 48°C (118 °F). NAT-DAM is the default condition FabDigit quotes; PTFE-LUB is available on request or by drawing note.
Advantages
- Easy to machine — 72/100, better than 76% of polymer grades
Limitations
- High embodied carbon — 7.5 kg CO₂/kg, worse than 79% of polymer grades
PA612 PTFE-LUB properties
Typical room-temperature values for PA612 PTFE-LUB; 25 are specific to this condition. Other listed values are PA612 reference data and may not represent this condition. Bars are the position among polymer grades.
Physical6
PA612 PTFE-LUB has a density of 1.12 g/cm³ (0.0405 lb/in³), lighter than 64% of polymer grades. Its glass-transition temperature is 48°C (118 °F).
Mechanical16
PA612 PTFE-LUB has a yield strength of 50 MPa (7.25 ksi) and a tensile strength of 52 MPa (7.54 ksi) — stronger than 52% of polymer grades. Elongation at break is 40% and the elastic modulus is 2.2 GPa (0.319 Msi).
Thermal11
PA612 PTFE-LUB is rated for continuous service to 100°C (212 °F). It conducts heat at 0.25 W/m·K (0.144 BTU/hr·ft·°F), better than 72% of polymer grades. Thermal expansion is 100 µm/m·K (55.6 µin/in·°F).
Electrical7
PA612 PTFE-LUB is an electrical insulator with a dielectric strength of 28 kV/mm (711.2 V/mil) and a resistivity of 1×10¹² Ω·m.
Chemical & Environmental3
Corrosion resistance is very good (80/100), worse than 52% of polymer grades. UV resistance is fair.
Sustainability4
Producing a kilogram of PA612 PTFE-LUB takes about 130 MJ of energy and emits 7.5 kg of CO₂ — more than 77% of polymer grades. Typical recycled content is 0%.
Manufacturability7
PA612 PTFE-LUB's machinability is very good (72/100, better than 76% of polymer grades); weldability poor (30/100); formability fair (45/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with PA612 PTFE-LUB
Is PA612 easy to machine?
Machines easily with sharp positive-rake tools, high speed and light feed; anneal stress-relieve and allow for post-machining moisture pickup, though drift is ~1/3 of PA6.
Can PA612 be welded?
Hot-plate, ultrasonic, vibration, IR and laser welding all work on dry material; dry to <0.1 % moisture before welding or moulding to avoid bubbles and MW loss.
Can PA612 be formed, bent or molded?
Dry 4 h at 80 °C, mould at 250–285 °C melt and 60–100 °C tool; shrinkage 1.0–1.8 % unfilled (anisotropic 0.3–0.7 % in GF grades) — gate thick sections to control voids.
What surface finishes work on PA612?
Takes textured tool finishes, pad printing and laser marking well; paint/adhesive bonding needs plasma or flame pretreatment, and unstabilised natural colour yellows outdoors.
PA612 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 |
|---|---|---|
| hexamethylenediamine (HMDA) unit1,6-hexanediamine residue | 32 – 35 | 33.5 |
| heat/UV stabiliser & lubricant packagegrade dependent | 0.1 – 2 | 0.5 |
| glass fiber0 for the unfilled default; 15/30/50 % in GF variants | 0 – 50 | 0 |
| dodecanedioic acid (DDDA) unitC12 diacid residue; PA612 repeat unit -[NH(CH2)6NHCO(CH2)10CO]- | ≥ 65 (balance) | — |
PA612 PTFE-LUB — frequently asked
What is PA612 PTFE-LUB used for?
PA612 PTFE-LUB is typically used for electrical connectors, automotive fuel system components, flexible tubing and monofilaments. In short: low-moisture-absorption nylon; dimensionally stable PA6 substitute; broad filled grade range.
What is the yield strength of PA612 PTFE-LUB?
PA612 PTFE-LUB has a typical yield strength of 50 MPa (7.25 ksi) and a tensile strength of 52 MPa (7.54 ksi) — stronger than 52% of polymer grades. Strength varies by condition: see the 12 listed tempers.
Is PA612 PTFE-LUB easy to machine?
Yes — machinability is rated very good (72/100, better than 76% of polymer grades). Machines easily with sharp positive-rake tools, high speed and light feed; anneal stress-relieve and allow for post-machining moisture pickup, though drift is ~1/3 of PA6.
Can PA612 PTFE-LUB be welded?
Not readily — weldability is rated poor (30/100). Hot-plate, ultrasonic, vibration, IR and laser welding all work on dry material; dry to <0.1 % moisture before welding or moulding to avoid bubbles and MW loss.
What surface finishes work on PA612 PTFE-LUB?
Takes textured tool finishes, pad printing and laser marking well; paint/adhesive bonding needs plasma or flame pretreatment, and unstabilised natural colour yellows outdoors.
Can PA612 PTFE-LUB be formed, bent or molded?
Dry 4 h at 80 °C, mould at 250–285 °C melt and 60–100 °C tool; shrinkage 1.0–1.8 % unfilled (anisotropic 0.3–0.7 % in GF grades) — gate thick sections to control voids.
What is the maximum service temperature of PA612 PTFE-LUB?
PA612 PTFE-LUB is rated for continuous use to about 100°C (212 °F), and briefly to 160°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between PA612 NAT-DAM and PA612 FR?
NAT-DAM is the default condition — baseline injection/extrusion grade evaluated dry — use these numbers for short-term stiffness, tolerances and electrical design. FR: compounded (usually GF-reinforced) FR grade for connectors and cable accessories requiring V-0 at 1.5 mm. Yield strength is 58 MPa in NAT-DAM versus 118 MPa in FR.
Sources
- VESTAMID D (PA612) product range data — Evonik (2022)
- Zytel 151 / PA612 resin datasheets — DuPont / Celanese (2021)
- CAMPUS plastics database, PA612 entries (ISO 10350) — CWFG (2023)
- Engineered Materials Handbook Vol.2: Engineering Plastics — ASM International (1988)
- ISO 1874-1/-2 Plastics — Polyamide (PA) moulding and extrusion materials — ISO (2010)
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.