T1000G
T1000G is the highest-strength PAN-based carbon fiber grade, reaching 6370 MPa tensile strength with 294 GPa modulus, 2.2 % elongation and 1.8 g/cm³ density.
Reference datasheet — T1000G 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 12K-50C condition
T1000G grades and fills
T1000G is supplied in 4 conditions, soft to hard. 12K-50C is the default FabDigit quotes; the values on this page are for it.
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-50CDefault 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?
T1000G is the highest-strength PAN-based carbon fiber grade, reaching 6370 MPa tensile strength with 294 GPa modulus, 2.2 % elongation and 1.8 g/cm³ density. It is specified where maximum tensile strength-to-weight governs — wound motor cases and highly loaded prepreg laminates — and is available as 12K tow with 50C and 40B sizings, T1000GB 24K, and UD epoxy prepreg (60 % fiber). It carries the highest fiber cost in the family, has limited supply and export-controlled end uses, and is notch- and abrasion-sensitive during handling. T800H is the usual fallback where the extra tensile strength is not needed. T1000G has a density of 1.8 g/cm³ (0.065 lb/in³), heavier than 59% of composite grades. T1000G 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).
What is T1000G used for?
- rocket motor cases
- advanced military aircraft
- high-end sporting goods
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 properties
Typical room-temperature values for T1000G-12K-50C; bars are the position among composite grades.
Physical1
T1000G has a density of 1.8 g/cm³ (0.065 lb/in³), heavier than 59% of composite grades.
Mechanical8
T1000G 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 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 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 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's machinability is poor (15/100, worse than 84% of composite grades).
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 composite family
Yield strength against density for every composite grade FabDigit runs. T1000G is highlighted; hover a dot for its name, or open the interactive family chart.
Working with T1000G
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.
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) |
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.
How much does T1000G cost?
T1000G is a high-cost composite ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
T1000G — frequently asked
What is T1000G used for?
T1000G is typically used for rocket motor cases, advanced military aircraft and high-end sporting goods. In short: highest tensile strength PAN fiber; filament-winding strength benchmark; highest cost, limited supply.
What is the tensile strength of T1000G?
T1000G has a typical tensile strength of 6,370 MPa (924 ksi) — stronger than 100% of composite grades. Strength varies by condition: see the 4 listed tempers.
Is T1000G easy to machine?
Not especially — machinability is rated poor (15/100, worse than 84% of composite grades). Extremely abrasive — use PCD or diamond-coated tools, high speed/low feed, dust extraction, and compression routers or waterjet to avoid delamination and fiber pull-out.
Can T1000G be welded?
Not weldable; joints are made by co-cure, adhesive bonding (peel-ply or plasma-prepared surfaces) or bolted metal fittings with galvanic isolation.
What surface finishes work on T1000G?
Surface is sealed with a resin-rich peel-ply or clear-coat/UV-blocking topcoat; never anodize or plate directly, and isolate from aluminium/steel with glass-ply or sealant to prevent galvanic corrosion.
Can T1000G be formed, bent or molded?
Processed as prepreg autoclave/oven cure, wet or towpreg filament winding, RTM/infusion or AFP; keep low tow tension and generous fiber radii — the high-strength fiber is notch- and abrasion-sensitive during handling.
What is the maximum service temperature of T1000G?
T1000G is rated for continuous use to about 400°C (752 °F), and briefly to 500°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does T1000G cost?
T1000G is a high-cost composite ($$$$), 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
- 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; 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.