Tube - Square - Plain Weave - High Modulus - Fabric - 1.00 x 1.09 x 66 in
Not eligible for return or exchange.
Void of compromise and full of intense performance! 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)
Additional Information
| Application | General Purpose |
|---|---|
| Shape | Square |
| Materials | High Modulus Carbon |
| Pattern | 1k Plain Weave |
| Color | Black |
| Finish | Cello Wrap Gloss |
| Height | 1.08 |
| Wall Thickness | 0.040 |
| Major ID | 1.0 |
| Major OD | 1.0 |
| Minor ID | 1.0 |
| Minor OD | 1.0 |
| Inner Corner Radius | 0.21875 |
| Outer Corner Radius | 0.25 |
| Length | 66 |
| Length (max continuous) | 66.0 |
| Linear Density | 0.114 |
| Volumetric Density | 0.057 |
| Weight | 0.626 |
| Primary Fiber | Toray M40J |
| Primary Resin / Hardener | Eporite EHM82 |
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 | 1.615E7 |
|---|---|
| Avg EY Young's Modulus | 4252000.0 |
| GXY Shear Modulus | 2758000.0 |
| X Tensile Yield Strength | 106600.0 |
| X Compressive Yield Strength | 79500.0 |
| Y Tensile Yield Strength | 18670.0 |
| Y Compressive Yield Strength | 28890.0 |
| XY Shear Strength | 22270.0 |
| CTEX | -9.35E-09 |
| CTEY | 4.64E-06 |
| Poisson's Ratio vXY | 0.455 |
| Poisson's Ratio vYX | 0.12 |
- "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
25487-HM Rev E
| Ply # | Orientation (degrees) | Location |
|---|---|---|
| 1 | 0 | Inside |
| 2 | 0 | ↓ |
| 3 | 45 | |
| 4 | -45 | |
| 5 | 0 | |
| 6 | 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: 7/32”
- External Radius: 1/4”.
Estimated Laminate Stiffness Properties (psi)
| EX | EY | GXY | EXB | EYB |
| 1.661E+07 | 5.074E+06 |
5.359E+06 |
1.787E+07 |
6.209E+06 |
Estimated Laminate CTE Properties (ppm/°F)
| CTE-X | CTE-Y | CTE-XY |
| 3.81E-07 |
5.64E-06 |
-3.38E-07 |
Estimated Laminate Strength Properties (psi)
| X-Axis Tension |
X-Axis Compression |
Y-Axis Tension |
Y-Axis Compression |
XY-Shear |
| 9.817E+04 |
-8.404E+04 |
2.267E+04 |
-3.573E+04 |
9.933E+03 |