T1000G 12K-50C
Grade · default condition
12K-50C = t1000G-12000-50C
Standard 12K tow (≈485 g/1000 m) with 50C sizing — default choice for epoxy prepreg, weaving and general composite lay-up.
Values for the 12K-50C condition
Other T1000G grades and fills
T1000G is listed in 4 conditions; see the grade overview at T1000G.
- UD-EP-60
- 12K-50C
- 12K-40B
- T1000GB-24K
Compare all 4 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
T1000G / epoxy unidirectional laminate, Vf ≈ 60% | Use these numbers when sizing a cured unidirectional prepreg laminate rather than the bare fiber tow. | — | 3,040 | 1.8 | — |
12K-50CDefaultThis page T1000G-12000-50C | Standard 12K tow (≈485 g/1000 m) with 50C sizing — default choice for epoxy prepreg, weaving and general composite lay-up. | — | 6,370 | 2.2 | — |
T1000G-12000-40B | Same fiber with a wet-winding-friendly sizing; pick it for filament-wound pressure vessels and rocket cases using liquid epoxy. | — | 6,370 | 2.2 | — |
T1000GB-24000 | Higher-filament-count tow for faster lay-down rates in winding and tape placement at lower cost per kilogram; same strand strength class. | — | 6,370 | 2.2 | — |
What is T1000G 12K-50C?
T1000G 12K-50C is T1000G in the 12K-50C grade — standard 12K tow (≈485 g/1000 m) with 50C sizing — default choice for epoxy prepreg, weaving and general composite lay-up. T1000G 12K-50C has a tensile strength of 6,370 MPa (924 ksi), stronger than 100% of composite grades. Elongation at break is 2.2% and the elastic modulus is 294 GPa (42.6 Msi). T1000G 12K-50C has a density of 1.8 g/cm³ (0.065 lb/in³), heavier than 59% of composite grades.
Advantages
- Good corrosion resistance — 92/100, better than 94% of composite grades
- Stiff — 294 GPa (42.6 Msi), better than 90% of composite grades
- High service temperature — 400°C (752 °F), better than 78% of composite grades
- Good UV / weathering resistance — 95/100, better than 78% of composite grades
Limitations
- High embodied carbon — 35 kg CO₂/kg, worse than 86% of composite grades
- Difficult to machine — 15/100, worse than 84% of composite grades
T1000G 12K-50C properties
Typical room-temperature values for T1000G 12K-50C; 13 are specific to this condition. Other listed values are T1000G reference data and may not represent this condition. Bars are the position among composite grades.
Physical1
T1000G 12K-50C has a density of 1.8 g/cm³ (0.065 lb/in³), heavier than 59% of composite grades.
Mechanical8
T1000G 12K-50C has a tensile strength of 6,370 MPa (924 ksi), stronger than 100% of composite grades. Elongation at break is 2.2% and the elastic modulus is 294 GPa (42.6 Msi).
Thermal6
T1000G 12K-50C is rated for continuous service to 400°C (752 °F). It conducts heat at 10 W/m·K (5.78 BTU/hr·ft·°F), better than 72% of composite grades. Thermal expansion is -0.5 µm/m·K (-0.278 µin/in·°F).
Electrical2
T1000G 12K-50C has an electrical resistivity of 1.4×10⁻⁵ Ω·m.
Chemical & Environmental3
Corrosion resistance is excellent (92/100), better than 94% of composite grades. UV resistance is excellent.
Sustainability4
Producing a kilogram of T1000G 12K-50C takes about 600 MJ of energy and emits 35 kg of CO₂ — more than 87% of composite grades. Typical recycled content is 0%.
Manufacturability2
T1000G 12K-50C's machinability is poor (15/100, worse than 84% of composite grades).
Common Calculations4
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with T1000G 12K-50C
Is T1000G easy to machine?
Extremely abrasive — use PCD or diamond-coated tools, high speed/low feed, dust extraction, and compression routers or waterjet to avoid delamination and fiber pull-out.
Can T1000G be welded?
Not weldable; joints are made by co-cure, adhesive bonding (peel-ply or plasma-prepared surfaces) or bolted metal fittings with galvanic isolation.
Can T1000G be formed, bent or molded?
Processed as prepreg autoclave/oven cure, wet or towpreg filament winding, RTM/infusion or AFP; keep low tow tension and generous fiber radii — the high-strength fiber is notch- and abrasion-sensitive during handling.
What surface finishes work on T1000G?
Surface is sealed with a resin-rich peel-ply or clear-coat/UV-blocking topcoat; never anodize or plate directly, and isolate from aluminium/steel with glass-ply or sealant to prevent galvanic corrosion.
T1000G 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 |
|---|---|---|
| Nresidual nitrogen from PAN precursor | ≤ 3.5 | 2 |
| epoxy-compatible sizing50C sizing on the 12K default tow; surface-treated fiber | 0.7 – 1.3 | 1 |
| Ccarbon content of the carbonized PAN filament | ≥ 96 (balance) | — |
T1000G 12K-50C — frequently asked
What is T1000G 12K-50C used for?
T1000G 12K-50C is typically used for rocket motor cases, advanced military aircraft and high-end sporting goods. In short: highest tensile strength PAN fiber; filament-winding strength benchmark; highest cost, limited supply.
What is the tensile strength of T1000G 12K-50C?
T1000G 12K-50C has a typical tensile strength of 6,370 MPa (924 ksi) — stronger than 100% of composite grades. Strength varies by condition: see the 4 listed tempers.
Is T1000G 12K-50C easy to machine?
Not especially — machinability is rated poor (15/100, worse than 84% of composite grades). Extremely abrasive — use PCD or diamond-coated tools, high speed/low feed, dust extraction, and compression routers or waterjet to avoid delamination and fiber pull-out.
Can T1000G 12K-50C be welded?
Not weldable; joints are made by co-cure, adhesive bonding (peel-ply or plasma-prepared surfaces) or bolted metal fittings with galvanic isolation.
What surface finishes work on T1000G 12K-50C?
Surface is sealed with a resin-rich peel-ply or clear-coat/UV-blocking topcoat; never anodize or plate directly, and isolate from aluminium/steel with glass-ply or sealant to prevent galvanic corrosion.
Can T1000G 12K-50C be formed, bent or molded?
Processed as prepreg autoclave/oven cure, wet or towpreg filament winding, RTM/infusion or AFP; keep low tow tension and generous fiber radii — the high-strength fiber is notch- and abrasion-sensitive during handling.
What is the maximum service temperature of T1000G 12K-50C?
T1000G 12K-50C is rated for continuous use to about 400°C (752 °F), and briefly to 500°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- TORAYCA T1000G Technical Data Sheet — Toray Industries / Toray Composite Materials America (2023)
- JIS R 7608 — Carbon fibre: determination of tensile properties of resin-impregnated yarn — JSA (2007)
- ASTM D4018 — Properties of Continuous Filament Carbon and Graphite Fiber Tows — ASTM (2017)
- ASM Handbook Vol. 21: Composites — ASM International (2001)
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.