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B4C vs TiN

Ceramic · grade comparison

B4C and TiN are both ceramic grades. B4C is harder — 3,000 HV against 1,900 HV for TiN — which matters for wear surfaces and threads. B4C is lighter (2.51 g/cm³ vs 5.22 g/cm³ for TiN) and B4C is stiffer (450 GPa vs 250 GPa).

B4CChoose it when surface hardness matters, or when weight is the constraint.

B4C vs TiN: properties

B4CTiN

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

450 GPa65.3 Msi
250 GPa36.3 Msi

Shear Modulus

190 GPa27.6 Msi
—

Bulk Modulus

240 GPa34.8 Msi
290 GPa42.1 Msi

Poisson's Ratio

0.17
0.25

Tensile Strength (Ultimate)

300 MPa43.5 ksi
—

Compressive Strength

2,900 MPa421 ksi
1,400 MPa203 ksi

Flexural Strength

400 MPa58 ksi
350 MPa50.8 ksi

Shear Strength

260 MPa37.7 ksi
—

Fracture Toughness (K_IC)

3 MPa·√m2.7 ksi·√in
4 MPa·√m3.6 ksi·√in

Hardness, Vickers

3,000 HV
1,900 HV

Hardness, Knoop

2,900 HK
1,800 HK

Hardness, Mohs

9.5
9

Physical

Density and transition temperatures.

Density

2.51 g/cm³0.09 lb/in³
5.22 g/cm³0.19 lb/in³

Melting Point (Solidus)

2,450°C4,442 °F
2,950°C5,342 °F

Porosity

0.5%
2%

Thermal

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

Thermal Conductivity

35 W/m·K20.2 BTU/hr·ft·°F
29 W/m·K16.8 BTU/hr·ft·°F

Specific Heat Capacity

960 J/kg·K0.23 BTU/lb·°F
600 J/kg·K0.14 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

4.5 µm/m·K2.5 µin/in·°F
9.4 µm/m·K5.2 µin/in·°F

Max Service Temperature (continuous)

800°C1,472 °F
600°C1,112 °F

Min Service Temperature

-269°C-452 °F
-250°C-418 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

0.05 Ω·m1,968,500 µΩ·in
3×10⁻⁷ Ω·m11.8 µΩ·in

Volume Resistivity

5 Ω·cm
3×10⁻⁵ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

90 / 100
75 / 100

Manufacturability

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

Machinability

3 / 100
8 / 100

Sintering / Firing Temperature

2,150°C3,902 °F
1,800°C3,272 °F

Same in both: Polishability 85 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

260 MJ/kg111,780 BTU/lb
200 MJ/kg85,985 BTU/lb

Embodied Carbon (primary production)

22 kg CO₂/kg
15 kg CO₂/kg

Embodied Water

120 L/kg14.4 gal/lb
—

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

179.3 MN·m/kg
47.9 MN·m/kg

Thermal Diffusivity

14.5 mm²/s
9.3 mm²/s

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 scale

Manufacturing and finishing

CapabilityB4CTiN
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

B4C vs TiN — frequently asked

What is the difference between B4C and TiN?

B4C and TiN are both ceramic grades. B4C is harder — 3,000 HV against 1,900 HV for TiN — which matters for wear surfaces and threads. B4C is lighter (2.51 g/cm³ vs 5.22 g/cm³ for TiN) and B4C is stiffer (450 GPa vs 250 GPa).

Which is cheaper, B4C or TiN?

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, B4C or TiN?

TiN, by a small margin. Both rate not recommended for machinability — 8/100 against 3/100 for B4C.

Ready to make it?

Upload a CAD file and FabDigit prices the part in B4C and TiN 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.