Noryl Specifications — Sizes, Tolerances, UL 94 & Standards
Noryl (modified PPO+PS) stock shapes are governed by SABIC material specifications, UL 94 flame certifications, and, for water-contact grades, NSF/ANSI 61. This page summarizes the applicable standards, minimum property requirements, stock size ranges, and dimensional tolerances for Noryl EN265, GFN3, and 731 in rod, sheet, and tube form.
At a glance:
- Primary standard: SABIC Noryl material data sheet; ASTM D6869 covers modified PPO shapes
- UL 94 V-0: EN265 and GFN3 at ≥0.030" (0.75mm) wall/thickness
- Rod: 0.500" – 6.0" diameter in 4-ft lengths
- Sheet: 0.125" – 4.0" thick; standard 24" × 48" sheets
- Tube: OD/ID combinations to order
- NSF-61 potable water: available on select grades — confirm lot documentation
Applicable Standards
| Standard | Scope |
|---|---|
| ASTM D6869 | Standard specification for extruded PPO (polyphenylene oxide) shapes |
| UL 94 | Flammability testing; EN265 and GFN3 rated V-0 at ≥0.030" |
| UL 746B | Polymeric materials — long-term property testing |
| NSF/ANSI 61 | Potable water contact — available on specific Noryl grades |
| IEC 60112 | Tracking resistance (CTI — comparative tracking index) |
| ASTM D638 | Tensile strength and modulus |
| ASTM D790 | Flexural strength and modulus |
| ASTM D256 | Izod impact |
| ASTM D648 | Heat deflection temperature |
| ASTM D150 | Dielectric constant and dissipation factor |
| ASTM D149 | Dielectric strength |
ASTM D6869 Minimum Property Requirements
For modified PPO extruded shapes:
Noryl EN265 exceeds all minimums: tensile 8,700 psi, HDT 215°F, impact 5.0 ft·lb/in, water absorption 0.07%.
Stock Shape Sizes and Tolerances
Noryl Rod
| Nominal Diameter | OD Tolerance | Standard Length |
|---|---|---|
| 0.500" – 0.750" | ±0.010" | 4 ft |
| 0.750" – 1.5" | ±0.015" | 4 ft |
| 1.5" – 3.0" | ±0.020" | 4 ft |
| 3.0" – 5.0" | ±0.030" | 4 ft |
| 5.0" – 6.0" | ±0.040" | 4 ft |
Noryl rod is primarily stocked in EN265. GFN3 rod is available but less commonly stocked — confirm availability.
Noryl Sheet / Plate
| Thickness | Thickness Tolerance | Standard Sheet Size |
|---|---|---|
| 0.125" – 0.250" | ±0.010" | 24" × 48" |
| 0.250" – 0.500" | ±0.015" | 24" × 48" |
| 0.500" – 1.0" | ±0.020" | 24" × 48" |
| 1.0" – 2.0" | ±0.030" | 24" × 48" |
| 2.0" – 4.0" | ±0.040" | 24" × 48" |
Noryl Tube
Tube is available in standard OD/ID combinations to order. OD tolerance: ±0.015" to ±0.030" depending on size.
UL 94 Flame Certification
UL 94 is the critical certification for Noryl electrical applications.
| Grade | UL 94 Rating | Minimum Thickness |
|---|---|---|
| EN265 | V-0 | 0.030" (0.75mm) |
| GFN3 | V-0 | 0.030" (0.75mm) |
| 731 | V-1 or HB | Varies |
V-0 definition: Material self-extinguishes within 10 seconds after removal of the ignition source; no flaming drips.
UL Yellow Card documentation is available for Noryl EN265 and GFN3 — request the Yellow Card from SABIC or your distributor when UL documentation is required for equipment certification filings.
Electrical Specification Summary
Engineering Drawing Notation
For Noryl parts on engineering drawings:
- Material callout: "Noryl EN265, SABIC or approved equivalent, per ASTM D6869"
- Flame requirement: "UL 94 V-0 at minimum 0.030" wall; Yellow Card documentation required"
- Potable water: "NSF/ANSI 61 compliance required; COC required per lot"
- Tolerances: Machined Noryl holds ±0.001" on turned diameters; ±0.002" on milled features without difficulty
Environmental and Regulatory
Request Noryl with UL 94 V-0 documentation
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