Mycalex Material Specifications
Physical Properties Units MM 400 MM 500 MM 600 MM 800
Chemical Formula          
Density g/cm³ 2.5 2.7 2.8 2.74
Color - Dark Gray Light Gray Cream Off White
Crystal Structure -        
Water Absorption % Nil Nil Nil Nil
Hardness Moh's        
Hardness Knoop
(kg/mm1)		        
Mechanical Properties

Units

MM 400

MM 500

MM 600

MM 800
Compressive Strength psi
MPa		 45,000
310		 40,000
276		 32,000
221		 40,000
276
Tensile Strength psi
MPa		 6000
41.4		 6000
41.4		 5000
34.5		 6000
41.4
Modulus of Elasticity
(Young's Mod.) 		psi x 106
GPa		 11.0
75		 12.0
82.7		 10.6
73.1		 11.5
79.3
Flexural Strength psi
MPa		 13,000
89.6		 12,500
86.2		 11,000
75.9		 13,500
93.1
Poisson's Ratio -        
Fracture Toughness MPa x m1/2        
Thermal Properties

Units

MM 400

MM 500

MM 600

MM 800
Max. Use Temperature
(* denotes insert atm.) 		°F
°C		 750
400		 930
500		 1100
600		 1600
800
Thermal Shock Resistance DT (ºC)        
Thermal Conductivity W/m.K .87 1.15 1.32 1.02
Coefficient of Linear
Thermal Expansion 		µm/m-°C
(~25°C though +/- 1000°C)		        
Specific Heat cal/g/°C 0.12 0.12 0.11 0.209
Electrical Properties

Units

MM 400

MM 500

MM 600

MM800
Dielectric Constant 1Mhz @ R.T.        
Dielectric Strength V/mil
kV/mm		 730
28.7		 530
20.9		 420
16.5		 480
18.9
Electrical Resistivity Wcm @ R.T.        

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