PROPERTY

UNITS

TEST METHOD

CORBIT 90

CORBIT 98FS

CORBIT 99,7

CORBIT 997 BLACK

SiC-S

SiC-H

Al₂O₃ content

wt%

(XRF) AH_09^(*1)

≥ 89.5

≥ 98.0

99.70 ± 0.25

99.70 ± 0.25

n/a

n/a

Density

g/cm³

IOS05/02/07^(*2)

Ref. ASTM C373

≥ 3.56

≥ 3.85

≥ 3.90

≥ 3.97

≥ 3.10

≥ 3.15

Rockwell 45 N hardness

-

IOS14/02/07^(*2)

Ref. UNI EN 843-4

≥ 77

≥ 84

≥ 85

≥ 87

≥ 90

≥ 90

Knoop hardness, HK1

kg/mm²

IOS31/02/07^(*2)

Ref. UNI EN 843-4

kg/mm²

≥ 1400

≥ 1480

≥ 1750

≥ 2300

≥ 2550

Ultrasound speed

m/s

IOS15/02/07^(*2)

Ref. ASTM E494

≥ 9300

≥ 10300

≥ 10580

≥ 10800

≥ 11500

≥ 11900

Elastic Modulus

GPa

≥ 275

≥ 360

≥ 377

≥ 392

≥ 400

≥ 410

Poisson ratio

-

0.21

0.22

0.23

0.23

0.14

n.d.