Boron carbide (B₄C) has an ultimate tensile strength (UTS) typically in the range of 155–500 MPa at room temperature, depending on processing, density, porosity, and grain size.
Typical Values
- Ultimate tensile strength (UTS): 350 MPa (51 ksi) (common engineering value)
- Hot-pressed, high-density B₄C: ~500 MPa
- Sintered or lower-density grades: ~155–250 MPa
- Nano-sized single crystals (simulated): ~40 GPa (laboratory scale, not bulk)
Boron carbide Available size：
| FEPA | F36F46F54F60 F80 F100 F120 F150 F180 F220 F230 F240 F280 F320 F400 F500 F600 F800 F1000 F1200 F1500 F2000 |
| JIS | JIS#36JIS #46JIS#54JIS#60#JIS80JIS#100JIS#120JIS#150JIS #180JIS#220JIS #240 JIS#280 JIS#320 JIS#360 JIS$400 JIS#500 JIS#600 JIS#800 JIS#1000 JIS#1200 JIS#1500 JIS#2000 JIS#2500 JIS#3000 JIS#4000 JIS#6000 JIS#8000 |
Key Notes
- B₄C is brittle; tensile failure occurs with negligible plastic deformation.
- Strength is strongly size-dependent: smaller specimens exhibit higher tensile strength.
- For design, use 150–350 MPa as a practical range for bulk components.