Semitron™ MP 370 PEEK is a ceramic-filled modified material that offers more choices in the design and manufacture of precision test sockets for the semiconductor manufacturing industry. Semitron™ MP 370 PEEK shapes exhibit excellent moisture absorption and thermal resistance, while also maintaining outstanding strength and dimensional stability. As a result, this grade is often selected for test socket applications where precision machining is critical and complex geometries are prevalent.
PROPERTIES
Exceptional machinability
Low internal stresses and no "soft center" problems associated with injection molded blanks
Excellent strength and stiffness
Very low moisture absorption
Good thermal machinability
Thermal Properties
Property
Value
Heat Deflection Temperature at 1.8MPa (264 psi) (ºC)
148
Continuous allowable service temperature in air
250
Mechanical Properties
Property
Value
Tensile Strength (MPa)
78
Tensile Modulus of Elasticity (MPa)
4,450
Compressive stress at 1% nominal strain (MPa)
38
Compressive stress at 2% nominal strain (MPa)
72
Compressive stress at 5% nominal strain (MPa)
Flexural Strength (MPa)
Charpy Impact Notched (kJ/m²)
4.0
Chemical Properties
Property
Value
Hot Water / Steam
Acceptable
Acids, Weak
Acceptable
Acids, Strong (pH 1-3)
Limited
Alkalies, Weak
Acceptable
Alkalies, Strong (pH 11-14)
Acceptable
Hydrocarbons - Aromatic
Acceptable
Hydrocarbons - Aliphatic
Acceptable
Ketones, Esters
Acceptable
Chlorinated Solvents
Acceptable
Alcohols
Acceptable
Inorganic Salt Solutions
Acceptable
Electrical Properties
Property
Value
Dielectric Strength (kV/mm)
Certification Properties
Property
Value
FDA
Not compliant
European Food Approval
Not compliant
NSF
Not compliant
3A-SSI
Not compliant
Canada AG
USDA
Not compliant
Flammability (UL Rating)
V-0
Medical use
Miscellaneous Properties
Property
Value
Base Material
PEEK
Brand Family
Colors
Grey
Density (g/cm3)
1.65
Water Absorption after 24 hrs immersion in water (%)
