FabDigitFabDigit

2124/SiC/25p vs MA956

Composite · grade comparison

2124/SiC/25p and MA956 are both composite grades. MA956 is the stronger of the two: yield strength 520 MPa (75.4 ksi) against 480 MPa (69.6 ksi) for 2124/SiC/25p, about 8% more; tensile strength follows at 655 MPa (95 ksi) vs 620 MPa (89.9 ksi). MA956 is the more ductile: elongation 18% versus 3% for 2124/SiC/25p. 2124/SiC/25p is lighter (2.88 g/cm³ vs 7.2 g/cm³ for MA956) and MA956 is stiffer (265 GPa vs 114 GPa).

2124/SiC/25pChoose it when weight is the constraint.

MA956Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

2124/SiC/25p vs MA956: properties

2124/SiC/25pMA956

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

114 GPa16.5 Msi
265 GPa38.4 Msi

Shear Modulus

45 GPa6.5 Msi
102 GPa14.8 Msi

Bulk Modulus

90 GPa13.1 Msi
165 GPa23.9 Msi

Poisson's Ratio

0.29
0.3

Tensile Strength (Ultimate)

620 MPa89.9 ksi
655 MPa95 ksi

Yield Strength (0.2% offset)

480 MPa69.6 ksi
520 MPa75.4 ksi

Elongation at Break

3%
18%

Compressive Strength

700 MPa102 ksi
530 MPa76.9 ksi

Compressive Modulus

116 GPa16.8 Msi
—

Flexural Strength

800 MPa116 ksi
—

Flexural Modulus

114 GPa16.5 Msi
—

Shear Strength

340 MPa49.3 ksi
400 MPa58 ksi

Fracture Toughness (K_IC)

15 MPa·√m13.7 ksi·√in
35 MPa·√m31.9 ksi·√in

Physical

Density and transition temperatures.

Density

2.88 g/cm³0.1 lb/in³
7.2 g/cm³0.26 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
11 W/m·K6.4 BTU/hr·ft·°F

Specific Heat Capacity

830 J/kg·K0.2 BTU/lb·°F
460 J/kg·K0.11 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

15 µm/m·K8.3 µin/in·°F
11.3 µm/m·K6.3 µin/in·°F

Max Service Temperature (continuous)

175°C347 °F
1,200°C2,192 °F

Min Service Temperature

-196°C-321 °F
—

Max Service Temperature (short-term)

300°C572 °F
1,400°C2,552 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

6.5×10⁻⁸ Ω·m2.56 µΩ·in
1.3×10⁻⁶ Ω·m51.2 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

32 / 100
72 / 100

UV / Weathering Resistance

95 / 100
100 / 100

Manufacturability

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

Machinability

12 / 100
20 / 100

Polishability

45 / 100
60 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Water

1,200 L/kg144 gal/lb
200 L/kg24 gal/lb

Same in both: Embodied Energy (primary production) 260 MJ/kg111,780 BTU/lb · Embodied Carbon (primary production) 18 kg CO₂/kg · Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

215 kN·m/kg
91 kN·m/kg

Specific Stiffness (E / density)

39.6 MN·m/kg
36.8 MN·m/kg

Modulus of Resilience

1,011 kJ/m³
510 kJ/m³

Thermal Diffusivity

58.6 mm²/s
3.3 mm²/s

Thermal Shock Resistance Index

51
2

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/25pMA956

Manufacturing and finishing

Capability2124/SiC/25pMA956
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

2124/SiC/25p vs MA956 — frequently asked

Is MA956 stronger than 2124/SiC/25p?

Yes. MA956 has a typical yield strength of 520 MPa (75.4 ksi) against 480 MPa (69.6 ksi) for 2124/SiC/25p — about 8% more. Tensile strength is 655 MPa (95 ksi) vs 620 MPa (89.9 ksi).

Which is cheaper, 2124/SiC/25p or MA956?

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 MA956?

MA956. Its machinability rates poor (20/100) 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 MA956 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.