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Cordierite vs LAS

Ceramic · grade comparison

Cordierite and LAS are both ceramic grades. LAS is the stronger of the two: tensile strength 45 MPa (6.53 ksi) against 25 MPa (3.63 ksi) for Cordierite, about 80% more. Cordierite is harder — 700 HV against 650 HV for LAS — which matters for wear surfaces and threads. Cordierite is lighter (2.3 g/cm³ vs 2.42 g/cm³ for LAS) and Cordierite runs hotter in service (1,250°C vs 1,100°C continuous).

CordieriteChoose it when surface hardness matters, or when weight is the constraint.

LASChoose it when strength drives the design.

Cordierite vs LAS: properties

CordieriteLAS

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

70 GPa10.2 Msi
72 GPa10.4 Msi

Shear Modulus

28 GPa4.1 Msi
30 GPa4.4 Msi

Bulk Modulus

47 GPa6.8 Msi
50 GPa7.3 Msi

Poisson's Ratio

0.25
0.24

Tensile Strength (Ultimate)

25 MPa3.6 ksi
45 MPa6.5 ksi

Compressive Strength

350 MPa50.8 ksi
450 MPa65.3 ksi

Flexural Strength

70 MPa10.2 ksi
95 MPa13.8 ksi

Hardness, Vickers

700 HV
650 HV

Hardness, Mohs

7
6.3

Elongation at Break

—
0%

Shear Strength

—
60 MPa8.7 ksi

Hardness, Knoop

—
620 HK

Same in both: Fracture Toughness (K_IC) 1.5 MPa·√m1.4 ksi·√in

Physical

Density and transition temperatures.

Density

2.3 g/cm³0.08 lb/in³
2.42 g/cm³0.09 lb/in³

Melting Point (Solidus)

1,465°C2,669 °F
1,420°C2,588 °F

Porosity

8%
2%

Thermal

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

Thermal Conductivity

2.5 W/m·K1.4 BTU/hr·ft·°F
1.8 W/m·K1 BTU/hr·ft·°F

Specific Heat Capacity

800 J/kg·K0.19 BTU/lb·°F
840 J/kg·K0.2 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

2 µm/m·K1.1 µin/in·°F
1 µm/m·K0.56 µin/in·°F

Max Service Temperature (continuous)

1,250°C2,282 °F
1,100°C2,012 °F

Same in both: Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹¹ Ω·m3.94×10¹⁸ µΩ·in
1×10¹⁰ Ω·m3.94×10¹⁷ µΩ·in

Dielectric Strength

10 kV/mm254 V/mil
15 kV/mm381 V/mil

Dielectric Constant (1 MHz)

5
6.5

Dissipation Factor (1 MHz)

0.004
0.003

Volume Resistivity

1×10¹³ Ω·cm
1×10¹² Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

70 / 100
82 / 100

Manufacturability

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

Machinability

20 / 100
12 / 100

Polishability

35 / 100
60 / 100

Sintering / Firing Temperature

1,350°C2,462 °F
1,300°C2,372 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

30 MJ/kg12,898 BTU/lb
40 MJ/kg17,197 BTU/lb

Embodied Carbon (primary production)

2.2 kg CO₂/kg
2.6 kg CO₂/kg

Embodied Water

20 L/kg2.4 gal/lb
60 L/kg7.2 gal/lb

Same in both: Typical Recycled Content 5%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

11 kN·m/kg
19 kN·m/kg

Specific Stiffness (E / density)

30.4 MN·m/kg
29.8 MN·m/kg

Thermal Diffusivity

1.4 mm²/s
0.9 mm²/s

Thermal Shock Resistance Index

0
1

Strength versus weight

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

501002005001,000234567Density (g/cm³)Yield strength (MPa) — log scaleCordierite

Manufacturing and finishing

CapabilityCordieriteLAS
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Cordierite vs LAS — frequently asked

Is LAS stronger than Cordierite?

Yes. LAS has a typical tensile strength of 45 MPa (6.53 ksi) against 25 MPa (3.63 ksi) for Cordierite — about 80% more.

Which is cheaper, Cordierite or LAS?

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, Cordierite or LAS?

Cordierite. Its machinability rates poor (20/100) against not recommended (12/100) for LAS.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Cordierite and LAS 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.