properties of luran s 797s
property, test condition
standard
unit
values
rheological properties
melt volume rate 220 °c/10 kg
iso 1133
cm³/10 min
5.5
mechanical properties
izod notched impact strength, 23 °c
iso 180/a
kj/m²
30
izod notched impact strength, -30 °c
iso 180/a
kj/m²
10
charpy notched impact strength, 23° c
iso 179
kj/m²
40
charpy notched impact strength, -30° c
iso 179
kj/m²
9
tensile stress at yield, 23° c
iso 527
mpa
42
tensile strain at yield, 23° c
iso 527
%
3.5
tensile modulus
iso 527
mpa
2000
tensile creep modulus (1000h)
iso 899
mpa
1100
elongation at break (md)
iso 527
%
11
flexural strength
iso 178
mpa
60
hardness, ball indentation
iso 2039-1
mpa
65
thermal properties
vicat softening temperature vst/b/50 (50°c/h, 50n)
iso 306
°c
90
vicat softening temperature, vst/a/50 (50°c/h, 10n)
iso 306
°c
104
heat deflection temperature a; (annealed, 1.8 mpa)
iso 75
°c
95
heat deflection temperature b; (annealed, 0.45 mpa)
iso 75
°c
100
coefficient of linear thermal expansion
iso 11359
10^(-6)/°c
80 - 110
thermal conductivity
din 52612-1
w/(m k)
0.17
electrical properties
dielectric constant (100 hz)
iec 60250
-
3.8
dissipation factor (100 hz)
iec 60250
10^(-4)
90
dissipation factor (1 mhz)
iec 60250
10^(-4)
260
volume resistivity
iec 60093
ohm*m
1e12
surface resistivity
iec 60093
ohm
1e+013
other properties
density
iso 1183
kg/m³
1070
bulk density (with external lubricant)
kg/m³
590
water absorption, saturated at 23°c
iso 62
%
1.65
moisture absorption, equilibrium 23°c/50% rh
iso 62
%
0.35
processing
linear mold shrinkage
iso 294-4
%
0.5 - 0.9
melt temperature range
iso 294
°c
240 - 280
mold temperature range
iso 294
°c
60
injection velocity
iso 294
mm/s
200
drying temperature
°c
80
drying time
h
2 - 4
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