PESU CF30
Reinforced grade
ISO 1043 PES · also Ultrason E, Sumikaexcel
CF30 = 30% carbon-fiber reinforced
Choose for maximum specific stiffness, low CTE and static-dissipative behaviour in hot service.
Values for the CF30 condition
Other PESU grades and fills
PESU is listed in 8 conditions; see the grade overview at PESU.
Compare all 8 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
Bearing grade | Internally lubricated compound for high-temperature bushings, seal rings and wear pads. | 60 | 62 | 8 | 85 Shore D |
ESD / static-dissipative compound | Carbon-black or carbon-fiber loaded compound for wafer handling and electronics fixtures needing 10^4–10^9 Ω surface. | 78 | 80 | 5 | 88 Shore D |
Membrane grade resin/powder | High-purity, narrow-MW resin dissolved in NMP/DMAc for phase-inversion UF, MF and hemodialysis membranes. | 84 | 85 | 40 | 87 Shore D |
10% glass-fiber reinforced | Light reinforcement when moderate stiffness gain is needed with retained toughness. | — | 100 | 5 | — |
20% glass-fiber reinforced | Mid-level stiffness/creep upgrade for structural housings and connectors. | — | 125 | 3 | — |
30% glass-fiber reinforced | Workhorse reinforced grade for aircraft interior brackets, high-temperature structural and electrical parts. | — | 150 | 2.5 | 92 HRM |
40% glass-fiber reinforced | Maximum stiffness and lowest CTE glass grade for load-bearing high-temperature components. | — | 165 | 1.8 | — |
CF30This page 30% carbon-fiber reinforced | Choose for maximum specific stiffness, low CTE and static-dissipative behaviour in hot service. | — | 190 | 1.5 | — |
What is PESU CF30?
PESU CF30 is PESU in the CF30 grade — choose for maximum specific stiffness, low CTE and static-dissipative behaviour in hot service. PESU CF30 has a yield strength of 84 MPa (12.2 ksi) and a tensile strength of 190 MPa (27.6 ksi) — stronger than 89% of polymer grades. Elongation at break is 1.5% and the elastic modulus is 20 GPa (2.9 Msi). PESU CF30 has a density of 1.48 g/cm³ (0.0535 lb/in³), heavier than 87% of polymer grades. Its glass-transition temperature is 225°C (437 °F).
Advantages
- Stiff — 20 GPa (2.9 Msi), better than 100% of polymer grades
- Conducts heat well — 0.7 W/m·K (0.404 BTU/hr·ft·°F), better than 99% of polymer grades
- Low, predictable mold shrinkage — 0.15%, better than 97% of polymer grades
- High strength — 84 MPa (12.2 ksi), better than 89% of polymer grades
- Polishes to a fine finish — 75/100, better than 86% of polymer grades
Limitations
- Limited ductility — 1.5%, worse than 98% of polymer grades
- Heavy — 1.48 g/cm³ (0.0535 lb/in³), worse than 87% of polymer grades
- Difficult to machine — 38/100, worse than 83% of polymer grades
- High embodied carbon — 8 kg CO₂/kg, worse than 83% of polymer grades
- Degrades in UV without stabilisers — 25/100, worse than 76% of polymer grades
PESU CF30 properties
Typical room-temperature values for PESU CF30; 14 are specific to this condition. Other listed values are PESU reference data and may not represent this condition. Bars are the position among polymer grades.
Physical6
PESU CF30 has a density of 1.48 g/cm³ (0.0535 lb/in³), heavier than 87% of polymer grades. Its glass-transition temperature is 225°C (437 °F).
Mechanical17
PESU CF30 has a yield strength of 84 MPa (12.2 ksi) and a tensile strength of 190 MPa (27.6 ksi) — stronger than 89% of polymer grades. Elongation at break is 1.5% and the elastic modulus is 20 GPa (2.9 Msi).
Thermal11
PESU CF30 is rated for continuous service to 180°C (356 °F). It conducts heat at 0.7 W/m·K (0.404 BTU/hr·ft·°F), better than 99% of polymer grades. Thermal expansion is 14 µm/m·K (7.78 µin/in·°F).
Electrical7
PESU CF30 is an electrical insulator with a dielectric strength of 17 kV/mm (431.8 V/mil) and a resistivity of 10 Ω·m.
Chemical & Environmental3
Corrosion resistance is excellent (85/100), better than 65% of polymer grades. UV resistance is poor.
Sustainability4
Producing a kilogram of PESU CF30 takes about 150 MJ of energy and emits 8 kg of CO₂ — more than 84% of polymer grades. Typical recycled content is 0%.
Manufacturability8
PESU CF30's machinability is fair (38/100, worse than 83% of polymer grades); weldability very good (70/100); formability good (55/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with PESU CF30
Is PESU easy to machine?
Machines cleanly with sharp carbide tools, positive rake and generous air/mist cooling; avoid cutting fluids containing ketones/esters and stress-relieve annealed blanks (~180 °C) before finish cuts to prevent crazing.
Can PESU be welded?
Joinable by ultrasonic, hot-plate, IR and vibration welding as well as solvent bonding (NMP/DMAc) and high-temperature epoxy adhesives; parts must be dried first or weld porosity occurs.
Can PESU be formed, bent or molded?
Inject at 340–380 °C melt with 140–180 °C mold; resin must be dried 3–4 h at 150 °C to <0.02 % moisture. Sheet thermoforms above ~230 °C; high melt viscosity requires generous gates and runners.
What surface finishes work on PESU?
Amber transparent surface polishes well and accepts vacuum metallizing, hard coats and pad printing; UV-stabilizing pigment or coating is required for outdoor exposure to limit yellowing.
PESU 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 |
|---|---|---|
| glass fiber0 in default unfilled grade; 10–40 wt% in GF variants | 0 – 40 | 0 |
| carbon fiberCF reinforced compounds only | 0 – 30 | 0 |
| PTFE / graphite lubricantbearing grades only | 0 – 20 | 0 |
| polyethersulfone repeat unit (–C6H4–SO2–amorphous polyarylethersulfone from 4,4'-dichlorodiphenyl sulfone + bisphenol S salt; ISO 1043 code PES/PESU | balance | — |
PESU CF30 — frequently asked
What is PESU CF30 used for?
PESU CF30 is typically used for aircraft interior components, microwave cookware, gas separation membranes, electrical insulation and medical sterilization trays. In short: highest-heat sulfone after PPSU; inherently flame retardant; machinable transparent high-temp resin.
What is the yield strength of PESU CF30?
PESU CF30 has a typical yield strength of 84 MPa (12.2 ksi) and a tensile strength of 190 MPa (27.6 ksi) — stronger than 89% of polymer grades. Strength varies by condition: see the 8 listed tempers.
Is PESU CF30 easy to machine?
Not especially — machinability is rated fair (38/100, worse than 83% of polymer grades). Machines cleanly with sharp carbide tools, positive rake and generous air/mist cooling; avoid cutting fluids containing ketones/esters and stress-relieve annealed blanks (~180 °C) before finish cuts to prevent crazing.
Can PESU CF30 be welded?
Yes — weldability is rated very good (70/100). Joinable by ultrasonic, hot-plate, IR and vibration welding as well as solvent bonding (NMP/DMAc) and high-temperature epoxy adhesives; parts must be dried first or weld porosity occurs.
What surface finishes work on PESU CF30?
Amber transparent surface polishes well and accepts vacuum metallizing, hard coats and pad printing; UV-stabilizing pigment or coating is required for outdoor exposure to limit yellowing.
Can PESU CF30 be formed, bent or molded?
Inject at 340–380 °C melt with 140–180 °C mold; resin must be dried 3–4 h at 150 °C to <0.02 % moisture. Sheet thermoforms above ~230 °C; high melt viscosity requires generous gates and runners.
What is the maximum service temperature of PESU CF30?
PESU CF30 is rated for continuous use to about 180°C (356 °F), and briefly to 220°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- Ultrason E (PESU) product line and processing guide — BASF (2023)
- Sumikaexcel PES grade data — Sumitomo Chemical (2022)
- TECASON E stock shape datasheet — Ensinger (2023)
- CAMPUS plastics database — PESU ISO 10350 datasets — CWFG / CAMPUS consortium (2024)
- ISO 1043-1 Plastics — Symbols and abbreviated terms — ISO (2011)
- ISO 527 / ISO 75 / ISO 306 test methods — ISO (2019)
- Engineering Plastics — Engineered Materials Handbook Vol.2 — ASM International (1988)
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.