Torlon 7130
Torlon 7130 is a carbon-fibre reinforced polyamide-imide internally lubricated with graphite and PTFE, supplied post-cured, as-moulded or extruded.
Reference datasheet — Torlon 7130 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.
Values for the PC condition
Torlon 7130 grades and fills
Torlon 7130 is supplied in 2 conditions, soft to hard. PC is the default FabDigit quotes; the values on this page are for it.
Compare all 2 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
As-molded | Condition straight out of the mold; use only for fit checks or before the cure cycle — strength, creep and solvent resistance are well below rated values. | 155 | 5 | 88 Shore D | |
PCDefault Injection molded, fully post-cured | Standard qualified condition: parts cured in stages to ~260 °C for several days to develop full strength, chemical and wear resistance. | 203 | 6 | 90 Shore D |
Supply forms, finishes and certifications
Ways Torlon 7130 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
EX | Extruded / compression-molded stock shape (rod, plate, tube), post-cured | Surface finish |
What is Torlon 7130?
Torlon 7130 is a carbon-fibre reinforced polyamide-imide internally lubricated with graphite and PTFE, supplied post-cured, as-moulded or extruded. With 203 MPa tensile strength, 22.4 GPa modulus, 6% elongation and 250 °C continuous service, it is used for bearings and seals that must run without external lubrication in aerospace and industrial equipment. Elongation is low, the compound is abrasive to tooling (machinability 45), and the staged multi-day post-cure to 260 °C adds lead time and cost. Torlon 4301 is the alternative when lower stiffness and easier machining are acceptable. Torlon 7130 has a density of 1.48 g/cm³ (0.0535 lb/in³), heavier than 87% of polymer grades. Its glass-transition temperature is 275°C (527 °F). Torlon 7130 has a tensile strength of 203 MPa (29.4 ksi), stronger than 99% of polymer grades. Elongation at break is 6% and the elastic modulus is 22.4 GPa (3.25 Msi).
What is Torlon 7130 used for?
- non-lubricated bearings
- valve seats
- aerospace seal rings
- piston rings in compressors
Advantages
- Stiff — 22.4 GPa (3.25 Msi), better than 100% of polymer grades
- Conducts heat well — 0.53 W/m·K (0.306 BTU/hr·ft·°F), better than 99% of polymer grades
- Low, predictable mold shrinkage — 0.1%, better than 99% of polymer grades
- High service temperature — 250°C (482 °F), better than 94% of polymer grades
- Tough — resists crack growth — 3.5 MPa·√m (3.19 ksi·√in), better than 81% of polymer grades
Limitations
- High embodied carbon — 15 kg CO₂/kg, worse than 96% of polymer grades
- Limited formability — 5/100, worse than 95% of polymer grades
- Difficult to weld — 5/100, worse than 89% of polymer grades
- Heavy — 1.48 g/cm³ (0.0535 lb/in³), worse than 87% of polymer grades
- Difficult to machine — 45/100, worse than 78% of polymer grades
Torlon 7130 properties
Typical room-temperature values for Torlon 7130-PC; bars are the position among polymer grades.
Physical4
Torlon 7130 has a density of 1.48 g/cm³ (0.0535 lb/in³), heavier than 87% of polymer grades. Its glass-transition temperature is 275°C (527 °F).
Mechanical13
Torlon 7130 has a tensile strength of 203 MPa (29.4 ksi), stronger than 99% of polymer grades. Elongation at break is 6% and the elastic modulus is 22.4 GPa (3.25 Msi).
Thermal10
Torlon 7130 is rated for continuous service to 250°C (482 °F). It conducts heat at 0.53 W/m·K (0.306 BTU/hr·ft·°F), better than 99% of polymer grades. Thermal expansion is 9 µm/m·K (5 µin/in·°F).
Electrical2
Torlon 7130 has an electrical resistivity of 100 Ω·m.
Chemical & Environmental3
Corrosion resistance is excellent (85/100), better than 65% of polymer grades. UV resistance is good.
Sustainability3
Producing a kilogram of Torlon 7130 takes about 300 MJ of energy and emits 15 kg of CO₂ — more than 97% of polymer grades. Typical recycled content is 0%.
Manufacturability7
Torlon 7130's machinability is fair (45/100, worse than 78% of polymer grades); weldability not recommended (5/100); formability not recommended (5/100).
Common Calculations4
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. Torlon 7130 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with Torlon 7130
Is Torlon 7130 easy to machine?
Machine fully post-cured stock with sharp PCD or fine-grain carbide, high speed and light feeds; carbon fiber is very abrasive and dry cutting or air/mist cooling avoids moisture pickup before final cure.
Can Torlon 7130 be welded?
Not melt-weldable in practice; join by epoxy or PAI-compatible adhesive, threaded inserts or mechanical fasteners with generous bosses.
Can Torlon 7130 be formed, bent or molded?
Injection mold at 335–360 °C melt / 200–230 °C mold with dried resin (<0.05 % moisture), then run the multi-day staged post-cure to ~260 °C to develop rated properties.
Torlon 7130 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 |
|---|---|---|
| carbon (graphite) fiberchopped fiber reinforcement | 28 – 32 | 30 |
| PTFEinternal lubricant / processing aid; content per producer formulation | 0.5 – 3 | 1 |
| polyamide-imide (PAI) resintrimellitic-anhydride based PAI matrix | ≥ 66 (balance) |
What surface finishes work on Torlon 7130?
Parts are self-colored dark grey/black; no plating or anodizing — surfaces are typically left as-machined, lightly bead-blasted or lapped for seal faces.
How much does Torlon 7130 cost?
Torlon 7130 is a high-cost polymer ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Torlon 7130 — frequently asked
What is Torlon 7130 used for?
Torlon 7130 is typically used for non-lubricated bearings, valve seats, aerospace seal rings and piston rings in compressors. In short: stiffest Torlon grade; runs without external lubrication; 203 MPa tensile strength.
What is the tensile strength of Torlon 7130?
Torlon 7130 has a typical tensile strength of 203 MPa (29.4 ksi) — stronger than 99% of polymer grades. Strength varies by condition: see the 2 listed tempers.
Is Torlon 7130 easy to machine?
Reasonably — machinability is rated fair (45/100, worse than 78% of polymer grades). Machine fully post-cured stock with sharp PCD or fine-grain carbide, high speed and light feeds; carbon fiber is very abrasive and dry cutting or air/mist cooling avoids moisture pickup before final cure.
Can Torlon 7130 be welded?
Not readily — weldability is rated not recommended (5/100). Not melt-weldable in practice; join by epoxy or PAI-compatible adhesive, threaded inserts or mechanical fasteners with generous bosses.
What surface finishes work on Torlon 7130?
Parts are self-colored dark grey/black; no plating or anodizing — surfaces are typically left as-machined, lightly bead-blasted or lapped for seal faces.
Can Torlon 7130 be formed, bent or molded?
Injection mold at 335–360 °C melt / 200–230 °C mold with dried resin (<0.05 % moisture), then run the multi-day staged post-cure to ~260 °C to develop rated properties.
What is the maximum service temperature of Torlon 7130?
Torlon 7130 is rated for continuous use to about 250°C (482 °F), and briefly to 280°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does Torlon 7130 cost?
Torlon 7130 is a high-cost polymer ($$$$), 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
- Torlon Polyamide-imide Design Guide (grade 7130) — Solvay Specialty Polymers (2023)
- Torlon PAI Injection Molding and Post-Cure Processing Guide — Solvay Specialty Polymers (2022)
- Torlon PAI extruded and compression-molded stock shapes — Drake Plastics (2023)
- Engineering Plastics — Engineered Materials Handbook Vol. 2 — ASM International (1988)
- CAMPUS / UL Prospector polyamide-imide datasheets — CWFG / UL (2024)
- 1688 (Torlon PAI) (2025)
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.