PESU-GF30
ASTM D6402
PESU-GF30 is polyethersulfone with about 30% short glass fiber, covered by ASTM D6402.
Reference datasheet — PESU-GF30 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 GF30 condition
PESU-GF30 grades and fills
PESU-GF30 is supplied in 5 conditions, soft to hard. GF30 is the default FabDigit quotes; the values on this page are for it.
Compare all 5 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
internally lubricated bearing / wear grade | Use for bushings, thrust washers and sliding parts running hot and dry where GF alone would be too abrasive. | 115 | 2 | 87 Shore D | |
High-flow / easy-release molding grade | Pick for thin-wall, long-flow-path or multi-cavity precision tooling where standard viscosity cannot fill. | 142 | 2.2 | 89 Shore D | |
Black, carbon-black pigmented / weather-improved grade | Choose when outdoor or lamp-adjacent exposure occurs and yellowing of the natural amber resin is unacceptable. | 148 | 2.4 | 90 Shore D | |
GF30Default Standard 30 % glass-fiber reinforced injection-molding grade | Default choice for stiff, dimensionally stable high-temperature molded parts requiring inherent V-0 and steam resistance. | 150 | 2.5 | ||
Healthcare / biocompatible grade | Specify for sterilizable medical instrument bodies, dental and lab hardware needing documented biocompatibility and lot traceability. | 150 | 2.5 | 90 Shore D |
What is PESU-GF30?
PESU-GF30 is polyethersulfone with about 30% short glass fiber, covered by ASTM D6402. It combines the base resin's heat and hydrolytic stability with 150 MPa tensile strength, 9.5 GPa modulus and 200 °C maximum service temperature at 1.6 g/cm³, and its low, more uniform shrinkage suits precision molded parts that resist warpage; grades on file include GF30-HF, GF30-BK, GF30-PTFE and GF30-MED. Elongation is only 2.5%, the amorphous matrix is notch- and stress-crack sensitive, and machinability is the lowest of the filled sulfones (score 45). PPSU-GF30 is the alternative where impact toughness and repeated steam sterilization outweigh peak service temperature. PESU-GF30 has a density of 1.6 g/cm³ (0.0578 lb/in³), heavier than 92% of polymer grades. Its glass-transition temperature is 222°C (432 °F). PESU-GF30 has a tensile strength of 150 MPa (21.8 ksi), stronger than 95% of polymer grades. Elongation at break is 2.5% and the elastic modulus is 9.5 GPa (1.38 Msi).
What is PESU-GF30 used for?
- Aerospace ducting brackets
- Medical sterilizable trays
- Electrical connectors
- Automotive sensor housings
Advantages
- Stiff — 9.5 GPa (1.38 Msi), better than 94% of polymer grades
- Low, predictable mold shrinkage — 0.3%, better than 90% of polymer grades
- Conducts heat well — 0.32 W/m·K (0.185 BTU/hr·ft·°F), better than 88% of polymer grades
- High service temperature — 200°C (392 °F), better than 87% of polymer grades
Limitations
- Heavy — 1.6 g/cm³ (0.0578 lb/in³), worse than 92% of polymer grades
- Limited ductility — 2.5%, worse than 89% of polymer grades
- Limited formability — 10/100, worse than 87% of polymer grades
- Hard to polish — 30/100, worse than 82% of polymer grades
- High embodied carbon — 7.5 kg CO₂/kg, worse than 79% of polymer grades
PESU-GF30 properties
Typical room-temperature values for PESU-GF30-GF30; bars are the position among polymer grades.
Physical4
PESU-GF30 has a density of 1.6 g/cm³ (0.0578 lb/in³), heavier than 92% of polymer grades. Its glass-transition temperature is 222°C (432 °F).
Mechanical14
PESU-GF30 has a tensile strength of 150 MPa (21.8 ksi), stronger than 95% of polymer grades. Elongation at break is 2.5% and the elastic modulus is 9.5 GPa (1.38 Msi).
Thermal11
PESU-GF30 is rated for continuous service to 200°C (392 °F). It conducts heat at 0.32 W/m·K (0.185 BTU/hr·ft·°F), better than 88% of polymer grades. Thermal expansion is 22 µm/m·K (12.2 µin/in·°F).
Electrical7
PESU-GF30 is an electrical insulator with a dielectric strength of 22 kV/mm (558.8 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 poor.
Sustainability4
Producing a kilogram of PESU-GF30 takes about 120 MJ of energy and emits 7.5 kg of CO₂ — more than 73% of polymer grades. Typical recycled content is 0%.
Manufacturability8
PESU-GF30's machinability is fair (45/100, worse than 78% of polymer grades); weldability fair (50/100); formability not recommended (10/100).
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. PESU-GF30 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with PESU-GF30
Is PESU-GF30 easy to machine?
Machinable with sharp carbide or PCD tools, high speed and light feeds with air/mist cooling; glass fiber is abrasive and the amorphous matrix is notch- and stress-crack sensitive, so avoid sharp internal corners and anneal (≈180–200 °C) before finish cuts.
Can PESU-GF30 be welded?
Joined by ultrasonic, hot-plate, vibration or laser welding and by solvent-free adhesive bonding; weld-line and joint strength are limited by fiber orientation, so mechanical fasteners or molded-in inserts are common for structural loads.
Can PESU-GF30 be formed, bent or molded?
Dry pellets to <0.02 % (150 °C, 3–4 h desiccant) then injection mold at 340–380 °C melt with 140–180 °C tool; use high hot-runner temperatures, generous gates and hardened/plated screws and tooling because of fiber abrasion.
PESU-GF30 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 fibershort chopped E-glass, silane sized, ~10–13 µm diameter | 28 – 32 | 30 |
| pigments / processing aidscolourants, release agent; grade-dependent | 0 – 2 | 0.5 |
| polyethersulfone (PESU) resinamorphous poly(oxy-1,4-phenylenesulfonyl-1,4-phenylene) repeat unit | ≥ 68 (balance) |
What surface finishes work on PESU-GF30?
Natural amber-to-tan appearance with visible fiber read-through; can be pad printed, painted with compatible primers, laser marked, and metallized/plated after suitable etch, but no anodizing and only limited polishing.
Equivalent designations
Standards and trade names that resolve to PESU-GF30 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- ASTM
- D6402
- Also called
- PES 30GF
How much does PESU-GF30 cost?
PESU-GF30 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.
PESU-GF30 — frequently asked
What is PESU-GF30 used for?
PESU-GF30 is typically used for aerospace ducting brackets, medical sterilizable trays, electrical connectors and automotive sensor housings. In short: highest-temperature filled sulfone; 200 °C continuous service; low-warpage precision molding.
What is the tensile strength of PESU-GF30?
PESU-GF30 has a typical tensile strength of 150 MPa (21.8 ksi) — stronger than 95% of polymer grades. Strength varies by condition: see the 5 listed tempers.
Is PESU-GF30 easy to machine?
Reasonably — machinability is rated fair (45/100, worse than 78% of polymer grades). Machinable with sharp carbide or PCD tools, high speed and light feeds with air/mist cooling; glass fiber is abrasive and the amorphous matrix is notch- and stress-crack sensitive, so avoid sharp internal corners and anneal (≈180–200 °C) before finish cuts.
Can PESU-GF30 be welded?
With care — weldability is rated fair (50/100). Joined by ultrasonic, hot-plate, vibration or laser welding and by solvent-free adhesive bonding; weld-line and joint strength are limited by fiber orientation, so mechanical fasteners or molded-in inserts are common for structural loads.
What surface finishes work on PESU-GF30?
Natural amber-to-tan appearance with visible fiber read-through; can be pad printed, painted with compatible primers, laser marked, and metallized/plated after suitable etch, but no anodizing and only limited polishing.
Can PESU-GF30 be formed, bent or molded?
Dry pellets to <0.02 % (150 °C, 3–4 h desiccant) then injection mold at 340–380 °C melt with 140–180 °C tool; use high hot-runner temperatures, generous gates and hardened/plated screws and tooling because of fiber abrasion.
What is the maximum service temperature of PESU-GF30?
PESU-GF30 is rated for continuous use to about 200°C (392 °F), and briefly to 250°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does PESU-GF30 cost?
PESU-GF30 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
- Ultrason E (PESU) product range and processing guide — BASF (2023)
- Veradel PESU glass-reinforced grades data sheets — Solvay Specialty Polymers (2022)
- Sumikaexcel PES glass-fiber reinforced grade data — Sumitomo Chemical (2021)
- CAMPUS ISO 10350 single-point data for PESU-GF30 compounds — CWFG / CAMPUS consortium (2024)
- ISO 527-1/-2, ISO 178, ISO 75-2, ISO 62, ISO 1133 — ISO (2019)
- UL 94 Tests for Flammability of Plastic Materials — UL Solutions (2021)
- Engineered Materials Handbook Vol. 2: Engineering Plastics — ASM International (1988)
- (PES/PESU) (2026)
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.