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2124/SiC/25p vs 6092/SiC/17.5p

Composite · grade comparison

2124/SiC/25p and 6092/SiC/17.5p are both composite grades. 2124/SiC/25p is the stronger of the two: yield strength 480 MPa (69.6 ksi) against 434 MPa (62.9 ksi) for 6092/SiC/17.5p, about 11% more; tensile strength follows at 620 MPa (89.9 ksi) vs 483 MPa (70.1 ksi). In exchange, 6092/SiC/17.5p is the more ductile: elongation 6% versus 3% for 2124/SiC/25p. 2124/SiC/25p is stiffer (114 GPa vs 100 GPa) and 2124/SiC/25p runs hotter in service (175°C vs 150°C continuous). On the shop floor, 6092/SiC/17.5p machines more easily (poor vs not recommended).

2124/SiC/25pChoose it when strength drives the design, or when the part sees heat.

6092/SiC/17.5pChoose it when the part is bent, formed or impact-loaded, or when the part is machined in volume.

2124/SiC/25p vs 6092/SiC/17.5p: properties

2124/SiC/25p6092/SiC/17.5p

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

114 GPa16.5 Msi
100 GPa14.5 Msi

Shear Modulus

45 GPa6.5 Msi
38.5 GPa5.6 Msi

Bulk Modulus

90 GPa13.1 Msi
79 GPa11.5 Msi

Tensile Strength (Ultimate)

620 MPa89.9 ksi
483 MPa70.1 ksi

Yield Strength (0.2% offset)

480 MPa69.6 ksi
434 MPa62.9 ksi

Elongation at Break

3%
6%

Compressive Strength

700 MPa102 ksi
448 MPa65 ksi

Compressive Modulus

116 GPa16.8 Msi
102 GPa14.8 Msi

Flexural Strength

800 MPa116 ksi
—

Flexural Modulus

114 GPa16.5 Msi
—

Shear Strength

340 MPa49.3 ksi
290 MPa42.1 ksi

Fracture Toughness (K_IC)

15 MPa·√m13.7 ksi·√in
17 MPa·√m15.5 ksi·√in

Same in both: Poisson's Ratio 0.29

Physical

Density and transition temperatures.

Density

2.88 g/cm³0.1 lb/in³
2.8 g/cm³0.1 lb/in³

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

140 W/m·K80.9 BTU/hr·ft·°F
165 W/m·K95.3 BTU/hr·ft·°F

Specific Heat Capacity

830 J/kg·K0.2 BTU/lb·°F
840 J/kg·K0.2 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

15 µm/m·K8.3 µin/in·°F
16.4 µm/m·K9.1 µin/in·°F

Max Service Temperature (continuous)

175°C347 °F
150°C302 °F

Min Service Temperature

-196°C-321 °F
-269°C-452 °F

Max Service Temperature (short-term)

300°C572 °F
—

Electrical

Conductivity and insulation.

Electrical Resistivity

6.5×10⁻⁸ Ω·m2.56 µΩ·in
6×10⁻⁸ Ω·m2.36 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

32 / 100
55 / 100

Same in both: UV / Weathering Resistance 95 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

12 / 100
22 / 100

Same in both: Polishability 45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

260 MJ/kg111,780 BTU/lb
280 MJ/kg120,378 BTU/lb

Embodied Water

1,200 L/kg144 gal/lb
1,300 L/kg156 gal/lb

Typical Recycled Content

0%
2%

Same in both: Embodied Carbon (primary production) 18 kg CO₂/kg

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

215 kN·m/kg
173 kN·m/kg

Specific Stiffness (E / density)

39.6 MN·m/kg
35.7 MN·m/kg

Modulus of Resilience

1,011 kJ/m³
942 kJ/m³

Thermal Diffusivity

58.6 mm²/s
70.2 mm²/s

Thermal Shock Resistance Index

51
49

Strength versus weight

Yield strength against density for every composite grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

1101001,000510Density (g/cm³)Yield strength (MPa) — log scale2124/SiC/25p6092/SiC/17.5p

Manufacturing and finishing

Capability2124/SiC/25p6092/SiC/17.5p
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

2124/SiC/25p vs 6092/SiC/17.5p — frequently asked

Is 2124/SiC/25p stronger than 6092/SiC/17.5p?

Yes. 2124/SiC/25p has a typical yield strength of 480 MPa (69.6 ksi) against 434 MPa (62.9 ksi) for 6092/SiC/17.5p — about 11% more. Tensile strength is 620 MPa (89.9 ksi) vs 483 MPa (70.1 ksi).

Which is cheaper, 2124/SiC/25p or 6092/SiC/17.5p?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, 2124/SiC/25p or 6092/SiC/17.5p?

6092/SiC/17.5p. Its machinability rates poor (22/100) against not recommended (12/100) for 2124/SiC/25p.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 2124/SiC/25p and 6092/SiC/17.5p side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.