rod-system-dat
size
3mm stainless-steel-solid-tube-dat - shaft-dat - ?
common parts
compare
| Feature | 3mm Solid Carbon Rod | 3mm Solid Stainless Steel Rod |
|---|---|---|
| Material | Carbon fiber (reinforced with epoxy) | Stainless steel (commonly 304 or 316) |
| Density / Weight | ~1.6 g/cm³ (lightweight) | ~8.0 g/cm³ (heavy) |
| Tensile Strength | ~600–1000 MPa | ~500–700 MPa |
| Flexural Strength / Stiffness | Very high stiffness (high modulus) | Lower stiffness compared to carbon |
| Impact / Shock Resistance | Brittle, can snap under sudden impact | Tough, can bend under load without breaking |
| Corrosion Resistance | Excellent (does not rust) | Good (resists corrosion, but can rust in harsh environments) |
| Weight-to-Strength Ratio | Extremely high (very strong per gram) | Low (heavier for same strength) |
| Practical Notes | Ideal for lightweight reinforcement, RC aircraft spars, hobby robotics | Better for impact-heavy or load-bearing metal parts, mechanical shafts |
Summary
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Carbon rod is much lighter and very stiff; for bending stiffness or lightweight structure, it is stronger per weight.
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Stainless steel rod is heavier but tougher; it can withstand impact and bending better without snapping.
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Conclusion:
- For lightweight RC planes, drones, or aerospace applications → 3mm carbon rod is preferred.
- For mechanical shafts or parts under heavy impact → 3mm stainless steel rod is safer.
- For lightweight RC planes, drones, or aerospace applications → 3mm carbon rod is preferred.