S2-449 (Owens Corning) s-glass fibre in a PR 381 (3M) epoxy matrix, supplied as tape. S-glass carries roughly a third more strength and stiffness than E-glass at similar density, at higher cost. It is specified where glass is wanted for its impact tolerance or transparency but E-glass is not strong enough — ballistic and containment structure, rotor components, and high-load fairings. The handbook characterises it from -65 °F to 180 °F, consistent with ambient and mildly elevated service. MatWorld carries 15 tensile, compressive and shear curves for this system, digitised from MIL-HDBK-17-2F Volume 2 (US Government work, public domain).
Compliance & Regulations
Fiber Direction
Ply Schedule
Laminate Code
[0/0/0/0/0/0/0/0/0/0/0/0]s
Fiber angles relative to the 0° reference direction (red arrow in 3D view). 0° = longitudinal, 90° = transverse, ±45° = shear paths.
15 interactive curves for this material
Stress-strain, S-N fatigue and environmental knockdown curves are free with an account.
Create free account| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Modulus(Ec) | 6,430 – 7,590 | ksi | 10 entriesClick to expand | ||
Compressive Strength(σc) | 123 – 198 | ksi | 10 entriesClick to expand | ||
Elongation at Break(εf) | 0.3000 – 4.090 | - | 10 entriesClick to expand | ||
Interlaminar Shear Strength(ILSS) | 7.000 – 16.80 | ksi | 13 entriesClick to expand | ||
Shear Modulus(G) | 440 – 850 | ksi | 5 entriesClick to expand | ||
Ultimate Shear Strength(Fsu) | 10.70 – 26.20 | ksi | 5 entriesClick to expand | ||
Ultimate Tensile Strength(σUTS) | 3.100 – 302 | ksi | 16 entriesClick to expand | ||
Young's Modulus(E) | 1,050 – 7,490 | ksi | 15 entriesClick to expand | ||