TDI Tweezer Material Data Sheet

TECHNICAL DATA SHEET: Engineering plastic type "DG"

General Notes:

POM/GF30acetal resin reinforced with 30 wt% glass fiber.
Good tensile and flexural strength, fatigue and creep resistance.
Low friction, good wear and abrasion resistance.
Low moisture absorption.
Good chemical resistance (oils, grease, fuels, organic solvents); not resistant to strong acids, alkalis and oxidizing agents; good hydrolytic resistance (hot water).
Insulating
Typical applications include handling of very scratch sensitive components
(ceramic and glass devices, SMD, wafers).
"DG" Material Chemical Compatibility Chart

MECHANICAL PROPERTIES:
Flexural modulus +23°C:	8000 MPa	ASTM D 790
Flexural modulus +60°C:	5700 MPa	ASTM D 790
Flexural modulus +90°C:	4500 MPa	ASTM D 790
Flexural modulus +120°C:	3800 MPa	ASTM D 790
Tensile strength +23°C:	83 MPa	ISO 527
Tensile strength +60°C:	60 MPa	ISO 527
Tensile strength +90°C:	53 MPa	ISO 527
Tensile strength +120°C:	45 MPa	ISO 527
Rockwell hardness M:	85	ASTM D 785
Izod-Impact strength (notched) +23°C:	55 J/m	ASTM D 256
Charpy-Impact strength (unnotched) +23°C:	20 kJ/m²	DIN53453
THERMAL PROPERTIES:
Temp. of defl. under load (1.80 MPa):	162 °C	ASTM D648
Temp. of defl. under load (0.45 MPa):	165 °C	ASTM D648
Vicat softening temperature (50 °C/h 50N):	156 °C	ISO 306
Coef. of lin. therm expansion, normal:	4.50 E-5/°C	ASTM D 696
Continuous use temperature:	85 °C	20'000 h
Short time temperature	120 °C
ELECTRICAL PROPERTIES:
Comparative tracking index:	>600 Volts	IEC 112
Electric strength (2mm):	23.0 kV/mm	IEC 243-1
OTHER PROPERTIES:
Density	1.59 g/ccm	ISO 1183
Color	White
Water absorption in water 23 °C (24h)	0.20%	ISO 62