For structural parts made today in aluminium or steel that need to weigh less. CSMC combines carbon fibre with the productivity of compression moulding: complex geometries, ribs and bosses in a single operation, and repeatable series.
At 1.51 g/cm³ versus 2.70 g/cm³ for aluminium, CSMC delivers more than twice the tensile strength per unit of weight. Less mass in the vehicle or equipment, and easier assembly and handling.
Tensile modulus ≥ 41,500 MPa and flexural strength ≥ 420 MPa. Its specific stiffness (modulus/density) is even slightly higher than that of 6061-T6 aluminium.
Compression moulding integrates ribs, reinforcements and bosses into the part itself, reducing joints and operations compared with a machined or welded solution.
As a thermoset composite it does not rust and needs no anti-corrosion treatment. Where it touches aluminium directly, we isolate the joint at design stage to prevent galvanic corrosion.
Moulding, CNC machining and 5-axis waterjet cutting in the same plant, with unit traceability of batch, press and part.
We review your aluminium design and propose thicknesses and ribs for CSMC with our CAD/CAM team (SolidWorks, CamWorks) and 3D printing for prototypes.
| Property | CSMC (EK08-5750) | Structural SMC (55% glass) | 6061-T6 aluminium |
|---|---|---|---|
| Density (g/cm³) | 1.51 | 1.88 | 2.70 |
| Tensile strength (MPa) | ≥ 370 | ≥ 180 | 310 |
| Tensile modulus (GPa) | ≥ 41.5 | ≥ 15.5 | 68.9 |
| Flexural strength (MPa) | ≥ 420 | ≥ 290 | — |
| Specific strength (MPa·cm³/g) | 245 | 96 | 115 |
| Reinforcement | 57% carbon fibre | 55% glass fibre | — |
Minimum values from the material manufacturer’s datasheets (Astar: Carbkid EK08-5750 and Verkid FG3375-55; tests ISO 527-4, ISO 14125, EN ISO 1183-1). 6061-T6 aluminium: typical values published by ASM / MatWeb. Indicative comparison: actual weight saving depends on each part’s geometry and design criterion (strength or stiffness).
When weight is a design criterion and the part has a complex geometry or is made in series: compression moulding avoids machining and joints, and the material offers more strength per kilo. For very simple parts or very short runs we assess it case by case, with figures.
The drawing or 3D model (STEP), mechanical requirements or loads, expected annual volume and applicable standards. With that we confirm initial feasibility within 24 working hours and propose thicknesses and ribs.
Yes. We work with our own and customer moulds, with a dedicated mould store for tools up to 24 t and their maintenance.
The CSMC datasheet covers mechanical properties. If your application requires EN 45545-2 or another fire standard, we review it for that specific project before proposing the material.
Send us the drawing or 3D model and the annual volume: we reply with initial feasibility within 24 working hours.