Macor® Machinable Glass Ceramic
Macor® is a registered trademark of Corning Inc.
For the manufacture of precision components utilising ordinary metalworking tools
No post firing required
Non-wetting, 0% porosity and no deformation
Max no load temperature: 1000°C
Continuous operating temperature: 800°C
Machining tolerances approach 0.013mm (polished smoothness of 0.013mm is achievable)
Can be sealed and joined to itself and to other materials
White in colour
Compressive Strength
35 kg/mm
2
Density
2.52 g/cm
3
Dielectric Constant at 25°C
6.03 (1 kHz);
5.67 (8.5 GHz)
Dielectric Strength in Oil at 90°C
40 kV/mm (@ 0.01 Thickness, 25°C)
Fracture Toughness
1.53 MPa
Hardness
48 (Rockwell A)
Modulus of Elasticity
66.9 GPa (Young's Modulus @ 25°C)
Modulus of Rupture
94 MPa (At 25°C)
Specific Heat at 25°C
0.79 kJ/kg°C
Thermal Conductivity at 23°C
1.46 W/m K
Thermal Expansion Coefficient
74 x 10
-7
/°C
(-200 - +25°C);
126 x 10
-7
/°C
(+25 - +800°C)
Volume Resistance
>10
16
Ωcm
(dc at 25°C)
Selection guide
225-5482
Rod Ø 6 x 100 mm
158-3089
Rod Ø 10 x 100 mm
158-3095
Rod Ø 15 x 100 mm
158-3102
Rod Ø 20 x 100 mm
158-3118
Rod Ø 25 x 100 mm
225-5498
Rod Ø 30 x 100 mm
225-5505
Rod Ø 35 x 100 mm
225-5511
Rod Ø 40 x 100 mm
225-5533
Rod Ø 6 x 300 mm
225-5549
Rod Ø 10 x 300 mm
225-5555
Rod Ø 15 x 300 mm
225-5561
Rod Ø 20 x 300 mm
225-5577
Rod Ø 25 x 300 mm
225-5498
Rod Ø 30 x 100 mm
225-5505
Rod Ø 35 x 100 mm
225-5511
Rod Ø 40 x 100 mm
158-3124
Bar with dimensions 10 x 10 x 100 mm
158-3130
Bar with dimensions 15 x 15 x 100 mm
158-3146
Bar with dimensions 20 x 20 x 100 mm
158-3152
Bar with dimensions 25 x 25 x 100 mm
233-4232
Disc Ø 10 x 1 mm
233-4254
Disc Ø 25 x 1 mm
233-4260
Disc Ø 25 x 2 mm
158-3168
Sheet 100 x 100 x 3 mm
158-3180
Sheet 100 x 100 x 6 mm
158-3196
Sheet 100 x 100 x 10 mm
233-4333
Sheet 50 x 50 x 1 mm
233-8644
Sheet 50 x 50 x 2 mm
158-32...
