Huashuo S-SiC physical properties

Performance Unit HS-A HS-P HS-XA
Grain Size μm 4-10 4-10 4-10
Density g/cm ≥3.1 3.0-3.1 >3.1
Hardness (Knoop) Kg/mm² 2800 2800 2800
Flexural Strength 4 pt @ RT MPa*m1/2
*10³1b/in²		 385
55		 240
55		 420
55
Compressive Strength @ RT Mpa
*10³1b/in²		 3900
560		 3900
560
Modulus of Elasticity @ RT Gpa
*10³1b/in²		 410
59		 400
58		 410
59
Weibull Modulus (2 parameter) 8 19 12
Poisson Ratio 0.14 0.14 0.14
Fracture Toughness @ RT Double Torsion & SENB MPa*m1/2
*1³1b/in²in½		 8
 8
 8
Coefficient of Thermal Expansion RT to 700℃ X10-6mm/mmK
X10-6 in/in°F		 4.02
2.2		 4.2
2.3		 4.02
2.2
Maximum Service Temp.Air Mean Specific Heat @ RT °C
J/gmK		 1900
0.67		 1900
0.59		 1900
0.67
Thermal Conductivity @ RT W/mK
Btu/ft h°F		 125.6
72.6		 110
64		 125.6
72.6
@200°C W/mK
Btu/ft h°F		 102.6
59.3		 102.6
59.3
@400°C W/mK
Btu/ft h°F		 77.5
44.8		 77.5
44.8
Permeability @ RT to 1000°C 31MPa below No gas leakage
Electrical Resistivity @ RT Ohm-cm 102-106 N/A 102-106
Emissivity 0.9 0.9 0.9
Performance
Ingredient SiC SiC+10%Si WC+6%Co A12O3

Density

SiC 3.10
SiC+10%Si 3.00
WC+6%Co 14.50
A12O3 3.93

Fracture Toughness

SiC 4
SiC+10%Si 4.5
WC+6%Co 9
A12O3 2.5

Modulus of Elasticity

SiC 410
SiC+10%Si 360
WC+6%Co 400
A12O3 380

Coefficient of Thermal Expansion

SiC 4*10-1
SiC+10%Si 5*10-1
WC+6%Co
A12O3 7.6*10-6

Hardness (Knoop)

SiC 2800
SiC+10%Si 2700
WC+6%Co 1880
A12O3 2200

Thermal Conductivity

SiC 126
SiC+10%Si 95
WC+6%Co 110
A12O3 20

Flexural Strength 4 pt

SiC 385(55)
SiC+10%Si 110(16)
WC+6%Co 570(83)
A12O3 300(43)

Mean Specific Heat

SiC 0.67
SiC+10%Si 0.80
WC+6%Co 0.95
A12O3 0.90

Compressive Strength

SiC 3970(560)
SiC+10%Si
WC+6%Co 7900(1140)
A12O3 3450(500)

Maximum Service Temp.Air

SiC 1900
SiC+10%Si 1200
WC+6%Co 900
A12O3 1400

Corrosion speed(mg/cm2yr)

SiC 1.5
SiC+10%Si 50.0
WC+6%Co >1000
A12O3 65.0
Reagent and Concentration Temperature
98%H2SO4 100℃

Corrosion speed(mg/cm2yr)

SiC <0.2
SiC+10%Si 0.5
WC+6%Co >1000
A12O3 7.0
Reagent and Concentration Temperature
70%HNO3 100℃

Corrosion speed(mg/cm2yr)

SiC 2.5
SiC+10%Si >1000
WC+6%Co 5.0
A12O3 75.0
Reagent and Concentration Temperature
50%NaOH 100℃

Corrosion speed(mg/cm2yr)

SiC <0.2
SiC+10%Si >1000
WC+6%Co 3.0
A12O3 60.0
Reagent and Concentration Temperature
45%KOH 100℃

Corrosion speed(mg/cm2yr)

SiC <0.2
SiC+10%Si 7.0
WC+6%Co 8.0
A12O3 20.0
Reagent and Concentration Temperature
53%HF 100℃

Corrosion speed(mg/cm2yr)

SiC <0.2
SiC+10%Si 0.9
WC+6%Co 85.0
A12O3 72.0
Reagent and Concentration Temperature
25%HCI 100℃

Corrosion speed(mg/cm2yr)

SiC <0.2
SiC+10%Si 8.0
WC+6%Co 55.0
A12O3 >1000
Reagent and Concentration Temperature
85%H2PO4 100℃

Corrosion speed(mg/cm2yr)

SiC <0.2
SiC+10%Si >1000
WC+6%Co >1000
A12O3 16.0
Reagent and Concentration Temperature
10%HF plus 57% HNO3 100℃

* Testing condition: soak for 125-300 hours and stir routinely