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6092/SiC/17.5p vs A359/SiC/20p

Composite · grade comparison

6092/SiC/17.5p and A359/SiC/20p are both composite grades. 6092/SiC/17.5p is the stronger of the two: yield strength 434 MPa (62.9 ksi) against 310 MPa (45 ksi) for A359/SiC/20p, about 40% more; tensile strength follows at 483 MPa (70.1 ksi) vs 340 MPa (49.3 ksi). 6092/SiC/17.5p is the more ductile: elongation 6% versus 0.5% for A359/SiC/20p. A359/SiC/20p runs hotter in service (200°C vs 150°C continuous). On the shop floor, 6092/SiC/17.5p machines more easily (poor vs not recommended).

6092/SiC/17.5pChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

A359/SiC/20pChoose it when the part sees heat.

6092/SiC/17.5p vs A359/SiC/20p: properties

6092/SiC/17.5pA359/SiC/20p

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

100 GPa14.5 Msi
98.6 GPa14.3 Msi

Shear Modulus

38.5 GPa5.6 Msi
38 GPa5.5 Msi

Bulk Modulus

79 GPa11.5 Msi
82 GPa11.9 Msi

Poisson's Ratio

0.29
0.32

Tensile Strength (Ultimate)

483 MPa70.1 ksi
340 MPa49.3 ksi

Yield Strength (0.2% offset)

434 MPa62.9 ksi
310 MPa45 ksi

Elongation at Break

6%
0.5%

Compressive Strength

448 MPa65 ksi
480 MPa69.6 ksi

Compressive Modulus

102 GPa14.8 Msi
99 GPa14.4 Msi

Shear Strength

290 MPa42.1 ksi
210 MPa30.5 ksi

Fracture Toughness (K_IC)

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

Flexural Strength

—
480 MPa69.6 ksi

Flexural Modulus

—
98 GPa14.2 Msi

Physical

Density and transition temperatures.

Density

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

Thermal

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

Thermal Conductivity

165 W/m·K95.3 BTU/hr·ft·°F
180 W/m·K104 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

16.4 µm/m·K9.1 µin/in·°F
17.5 µm/m·K9.7 µin/in·°F

Max Service Temperature (continuous)

150°C302 °F
200°C392 °F

Min Service Temperature

-269°C-452 °F
-196°C-321 °F

Max Service Temperature (short-term)

—
300°C572 °F

Same in both: Specific Heat Capacity 840 J/kg·K0.2 BTU/lb·°F

Electrical

Conductivity and insulation.

Same in both: Electrical Resistivity 6×10⁻⁸ Ω·m2.36 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

55 / 100
45 / 100

Same in both: UV / Weathering Resistance 95 / 100

Manufacturability

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

Machinability

22 / 100
12 / 100

Same in both: Polishability 45 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

280 MJ/kg120,378 BTU/lb
190 MJ/kg81,685 BTU/lb

Embodied Carbon (primary production)

18 kg CO₂/kg
13 kg CO₂/kg

Embodied Water

1,300 L/kg156 gal/lb
1,100 L/kg132 gal/lb

Typical Recycled Content

2%
15%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

173 kN·m/kg
123 kN·m/kg

Specific Stiffness (E / density)

35.7 MN·m/kg
35.6 MN·m/kg

Modulus of Resilience

942 kJ/m³
487 kJ/m³

Thermal Diffusivity

70.2 mm²/s
77.4 mm²/s

Thermal Shock Resistance Index

49
35

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 scaleA359/SiC/20p6092/SiC/17.5p

Manufacturing and finishing

Capability6092/SiC/17.5pA359/SiC/20p
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

6092/SiC/17.5p vs A359/SiC/20p — frequently asked

Is 6092/SiC/17.5p stronger than A359/SiC/20p?

Yes. 6092/SiC/17.5p has a typical yield strength of 434 MPa (62.9 ksi) against 310 MPa (45 ksi) for A359/SiC/20p — about 40% more. Tensile strength is 483 MPa (70.1 ksi) vs 340 MPa (49.3 ksi).

Which is cheaper, 6092/SiC/17.5p or A359/SiC/20p?

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, 6092/SiC/17.5p or A359/SiC/20p?

6092/SiC/17.5p. Its machinability rates poor (22/100) against not recommended (12/100) for A359/SiC/20p.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 6092/SiC/17.5p and A359/SiC/20p 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.