Abrasive Blast Nozzles

SiC and B4C Nozzles

Nozzles are available in three materials:

  • Hexoloy® SA silicon carbide
  • Norbide® boron carbide
  • Silit® SKG SiSiC Silicon Carbide

All three materials have exceptional intrinsic hardness which enables superior wear and abrasion resistance to a wide range of abrasive solid and liquid media. 

In addition, boron carbide is more lightweight versus all other nozzle options.

Features and Benefits

Application
  • Blast nozzles
  • Monument nozzles
  • Chemical Spray Nozzles
Material Properties Hexoloy® SA
Property Units

Typical Value

Composition* - SiC
Grain Size µm 4.10
Density g/cm3 3.10
Hardness (Knoop)** kg/mm2 2,800
Flexural Strength 4 pt @ RT***

MPa

x103 lb/in2

380

55

Flexural Strength 3 pt @ RT***

MPa

x103 lb/in2

550

80

Compressive Strength @ RT

MPa

x103 lb/in2

3,900

560

Modulus of Elasticity @ RT

GPa

x106 lb/in2

430

62

Weibull Modulus (2 parameter)   10
Poisson Ratio   0.14

Fracture Toughness @ RT

Double Torsion & SENB

MPa x m1/2

x103 lb/in2 x in1/2

4.60

4.20

Coefficient of Thermal Expansion

RT to 700°C

x10-6 mm/mmK

x10-6 in/in ˚F

4.02

2.20

Maximum Service Temp. Air

°C

°F

1,900

3,450

Mean Specific Heat @ RT J/gmK 0.67

Thermal Conductivity @ RT

@ 200°C

@ 400°C

 

 

 

W/mK

Btu/ft h °F

W/mK

Btu/ft h °F

W/mK

Btu/ft h °F

125.6

72.6

102.6

59.3

77.5

44.8

Permeability @ RT to 1,000°C Impervious to gases over 31 MPa

Electrical Resistivity @ RT****

@ 1,000°C

ohm-cm

ohm-cm

102 - 108

0.01 - 0.2

Emissivity   0.9

 

Material Properties Norbide®
Property Units Value
Composition*   B • C
Density g/cm3 2.50
Hardness (Knoop)** kg/cm3 2,800
Flexural Strength 4 pt @ RT***  MPa  425
Compressive Strength @ RT MPa  2,900
Modulus of Elasticity @ RT  GPa  440
Poisson’s Ratio   0.18

Fracture Toughness @ RT

Indentation

MPa x m1/2  3.1
Coefficient of Thermal Expansion  x10-6 mm/mmK  5
Thermal Conductivity @ 20 °C  W/mK  90

* Composition code: B = Boron, C = Graphite, B4C = Boron Carbide
** Knoop 0.1 kg load
*** TestBar Size: 3 x 4 x 45 mm (0.118" x 0.157" x 1.772")