SiC Heat Exchanger Tube

Material

Hexoloy SE Si C

Maximum Use Temperature

1900C

Flexural Strength (MPa)

@ Room Temp

280

@1450C

270

@1600C

300

Density (g / cc)

3.05

Apparent Porosity (%)

5-10

Modulus of Elasticity (GPa)

@20C

420

@1300C

363

Thermal Conductivity (W/mK) @ 1200C

34.8

Coefficient of Thermal Expansion

4.02 x 10-6/C

Composition (Phases)

Silicon Carbide (SiC)

Density

3.05 g/cm

Grain Size

4 to 10

Hardness (Knoop)

2800 kg/mm

Flexural Strength 4 Point at Room Temperature

280 MPa

40 x 103 lb/in

Compressive Strength at Room Temperature

3900 MPa

560 x 103 lb/in

Modulus of Elasticity at Room Temperature

420 GPa

60 x 106 lb/in

Weibull Modulus (2 Parameters)

10

Poisson Ratio

0.14

Fracture Toughness at Room Temperature (Double Torsion and Single Edge Notched Beam (SENB))

4.6 MPa/m

4.2 x 103 lb /in/in

Coefficient of Thermal Expansion Room Temperature to 700C

4.02 x 10-6 mm/mmK

2.2 x 10-6 in/inF

Maximum Service Air Temperature

1900 C

3450 F

Mean Specific Heat at Room Temperature

0.67 J/gmK

Thermal Conductivity at Room Temperature

157.3 W/mK

90.9 Btu/ft hF

Thermal Conductivity at 200C

107.2 W/mK

62 Btu/ft hF

Thermal Conductivity at 400C

77.3 W/mK

44.7 Btu/ft hF

Electrical Resistivity at Room Temperature

102 to 108 ohm-cm

Electrical Resistivity at 1000C

0.01 to 0.2 ohm-cm

Emissivity

0.9

Maximum Standard Tube Length ( 0.63)

15 ft

> 4.5 m

Available Heat Exhanger Tube Sizes

1/2 in

3/4 in

14 mm