Tube - Square - Plain Weave - High Modulus - 0.005 Glass Weave Outer - 1.000 x 1.098 x 45 inch
High performance tubing built without compromise Rock West's high modulus tubing utilizes high modulus (55 Msi) fibers with a strength of 640 ksi. This combination yields an astounding product comprised of a multi-directional layup of only high modulus fibers with a higher temperature resin system. Our high modulus tubing lineup is generally designated by using an outer layer of a 3k plain weave fabric.
- 55 msi Unidirectional carbon fiber throughout with a
- Standard Modulus plain weave outer woven layer for increased performance when machining and hole drilling
- Can easily be trimmed into shorter lengths for your complete build
- Nearly 2x stiffer than all standard modulus tubes
- *Estimated to have a composite elastic modulus of ~19Msi
*This value varies depending on the specific layup orientation, tube diameters and shape. Representing a theoretical modulus assigned to a general composite round tube (not the fiber alone)
Features & Benefits
Carbon Fiber Material | Modulus, Strength | Benefits, Features & Notes
- Standard Modulus | 34 msi, 700 ksi | Good structural properties - Stiffer than aluminum - Readily available
- Intermediate Modulus | 42 msi, 825 ksi | Great structural properties - Highest strength option - Great balance of stiffness and strength
- High Modulus | 57 msi, 670 ksi | Very stiff - Good thermal conductivity / stability - Typically used in all 0° & 90° (or off-axis) plies throughout the ply sequence / laminate orientation.
- Ultra High Modulus | 94 msi, 414 ksi | Stiffest option available - Great thermal conductivity - Used primarily as 0° plies in combination with lower modulus / higher strength fibers in the 90° orientation to create a well-balanced and functional composite structure.
*Values listed above are reflective only of the fiber NOT the composite matrix (fiber + resin) and are listed only for tensile modulus and strength. ***Theoretical values are currently not available for this tube but testing can be performed upon request for a fee
Additional Information
| Application | General Purpose |
|---|---|
| Shape | Square |
| Materials | High Modulus Carbon |
| Pattern | Unidirectional |
| Color | Black |
| Finish | Cello Wrap Gloss |
| Height | 1.1 |
| Wall Thickness | 0.049 |
| Major ID | 1.0 |
| Major OD | 1.0 |
| Minor ID | 1.0 |
| Minor OD | 1.0 |
| Inner Corner Radius | 0.15625 |
| Outer Corner Radius | 0.234375 |
| Length | 45 |
| Length (max continuous) | 45.0 |
| Linear Density | 0.141 |
| Volumetric Density | 0.057 |
| Weight | 0.527 |
| Primary Fiber | Pyrofil HR40 |
| Primary Resin / Hardener | Newport 321 |
Engineering Properties
All laminate properties and mechanical calculations are based on Classical Lamination Theory and should be used as a reference only. Rock West Composites does not guarantee these properties or calculations.
| Avg EX Young's Modulus | 1.625E7 |
|---|---|
| Avg EY Young's Modulus | 5106000.0 |
| GXY Shear Modulus | 5173000.0 |
| X Tensile Yield Strength | 91780.0 |
| X Compressive Yield Strength | 72760.0 |
| Y Tensile Yield Strength | 33140.0 |
| Y Compressive Yield Strength | 34380.0 |
| XY Shear Strength | 37440.0 |
| CTEX | -3.37E-07 |
| CTEY | 3.47E-06 |
| Poisson's Ratio vXY | 0.685 |
| Poisson's Ratio vYX | 0.215 |
- "X" is along the length of a tube, rod, plate, or panel.
- "Y" is around the perimeter of a tube, perpendicular to the length of pultruded parts, or along the width of a plate or panel.
Layup Orientation
25509-HM Rev C
| Ply # | Orientation (degrees) | Location |
|---|---|---|
| 1 | 45 | Inside |
| 2 | -45 | ↓ |
| 3 | 0 | |
| 4 | 0 | |
| 5 | 45 | |
| 6 | -45 | |
| 7 | 0 | |
| 8 | -45 | |
| 9 | 45 | |
| 10 | 0 | |
| 11 | 0 | |
| 12 | -45 | |
| 13 | 45 | |
| 14 | 0/90 | Outside |
- 0° fibers maximize bending stiffness and run along the length of the part. Consider bending a tube over your knee.
- 45° fibers maximize torsional stiffness and are typically plied together in an opposing manner, i.e. ±45°. Consider twisting a tube like a vehicle's driveshaft.
- 90° (or "hoop") fibers maximize crushing stiffness and generally assist in overall durability. Consider laying a tube on the ground and stepping on it.
Technical Specifications
Radius of Tubing
The inner and external corner radii are measured by hand with a radius gauge with no tolerance called out.- Internal Radius: 5/32"
- External Radius: 15/64"
We cannot supply theoretical values for this tube at this time. For specification sheets and other data we can supply please review our Technical Spec page.