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SR-200 Extruded
Silicone Rubber Tubing |
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 SR-200 Silicone Rubber extruded tubing is an extremely elastic
material made from a high-strength silicone rubber compound
exhibiting outstanding high-temperature stability combined with
low-temperature flexibility. Rated as a Class H material,
this 50-durometer compound is capable of continuous operation at
250°C (482°F). In addition to its exceptional flexibility
and mechanical strength (excellent tear resistance, tensile
strength, elongation, and weathering resistance) it offers
outstanding dielectric strength and corona resistance. |
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USES |
| SR-200 is widely
used in high-temperature, high-voltage applications where other
types of insulation would be subject to corona breakdown. It
is suitable wherever conditions require a high degree of
reliability. |
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SPECIFICATIONS |
| SR-200 meets
performed requirements of Military Specification MIL-R-5847 and
Federal Specification ZZ-R-765, Class 2b, Grade 50. |
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COLOR |
Standard Color:
White
Other colors subject to factory quotation upon request. |
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VOLTAGE |
Standard Wall
- 300 Volt
Heavy Wall - 600 Volt
SR-200 is a Non-Stock Material subject to factory quotation
upon request. |
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PACKAGING |
| #24 thru #13: |
1,000 Ft. Coil |
|
#12 thru #7: |
500 Ft. Coil |
| #6 thru #2: |
250 Ft. Coil |
|
#1 thru 1/2": |
250 Ft. Coil |
| 5/8" thru 7/8": |
100 Ft. Coil |
|
1" |
50 Ft. Coil |
|
All sizes can be supplied
in various lengths cut to customer's specifications, subject
to factory quotation upon request. |
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CHARACTERISTICS OF EXTRUDED
SILICONE RUBBER TUBING |
|
PROPERTY |
TEST METHOD |
PERFORMANCE |
|
Dielectric Strength |
ASTM D 149 |
Minimum 400 volts per mil.
Not influenced by variations in temperature. |
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Dielectric Constant |
ASTM D 150 |
3.10 ± .05 |
|
Dissipation Factor |
ASTM D 150 |
Less than .003 |
|
Volume Resistivity |
ASTM D 150 |
More than 10
OHM-CM |
|
Thermal Characteristics |
ZZ-R-765 |
Heat Resistance:
Short term high temp operations at 450°F. Recommended for
continuous operations up to 400°F.
Heat Aging: Retains more than 80% tensile strength and
elongation after 7 days at 225°C. Insulating properties
retained at temperature extremes. An excellent conductor
of heat as compared with other electrical insulating
materials. |
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Durometer, Hardness Shore A |
ASTM D 2240 |
50±5 |
|
Flexibility |
|
Superior: Extremely elastic,
can withstand repeated flexing without loss of dielectric
strength. Retains flexibility at high and low
temperatures. |
|
Low Temp Brittle Point (Whole
Tube) |
ASTM D 876 |
-70°C |
|
Water Absorption |
ZZ-R-765 |
Maintains excellent electrical
and physical properties during and after prolonged exposure to
high humidity or immersion in water for 70 hours at 100°C. |
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Compatibility |
|
Completely compatible with all
wire enamels and encapsulating materials. Outstanding
release from sticking. |
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Chemical Resistance |
|
Good resistance to lubricating
oils, animal and vegetable oils, alcohols, ketones and most
dilute acids and alkalis. |
|
Aging Resistance |
ZZ-R-765 |
Extreme aging resistance.
Contains no plasticizers or other volatile or oxidizing
materials which might migrate to the surface, evaporate and
cause hardening and cracking. |
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Sunlight and Weathering Resistance |
|
Excellent |
|
Corona Resistance |
ASTM D 2633 |
Excellent. Approaches that of
mica. |
|
Abrasion Resistance |
MIL-T-5438 |
Fair |
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Fungus Resistance |
ASTM G 21 |
Inert to fungi |
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Tensile Strength |
MIL-R-5847 |
1000psi Minimum |
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Ultimate Elongation |
MIL-R-5847 |
400% Minimum |
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Tear Resistance |
MIL-R-5847 |
150psi |
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Cut-Through Resistance |
|
Good |
|
Gamma Radiation Dosage, RAD |
|
10 - 10 |
|
Above values are typical
performance data for SR-200 Tubing and are not intended to be
used as design data. |
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SIZE |
NOMINAL I.D. |
STANDARD WALL
300 VOLT |
HEAVY WALL
600 VOLT |
|
Inch |
mm |
|
28 |
.015 |
.38 |
.016 |
.033 |
|
26 |
.018 |
.45 |
.016 |
.033 |
|
24 |
.022 |
.56 |
.016 |
.033 |
|
22 |
.027 |
.69 |
.016 |
.033 |
|
20 |
.034 |
.86 |
.016 |
.033 |
|
19 |
.038 |
.97 |
.016 |
.033 |
|
18 |
.042 |
1.07 |
.016 |
.033 |
|
17 |
.047 |
1.19 |
.016 |
.033 |
|
16 |
.053 |
1.35 |
.016 |
.033 |
|
15 |
.059 |
1.50 |
.016 |
.033 |
|
14 |
.066 |
1.68 |
.016 |
.033 |
|
13 |
.076 |
1.93 |
.016 |
.033 |
|
12 |
.085 |
2.16 |
.016 |
.033 |
|
11 |
.095 |
2.41 |
.016 |
.033 |
|
10 |
.106 |
2.69 |
.016 |
.033 |
|
9 |
.118 |
3.00 |
.016 |
.033 |
|
8 |
.133 |
3.38 |
.020 |
.038 |
|
7 |
.148 |
3.76 |
.020 |
.038 |
|
6 |
.166 |
4.22 |
.020 |
.038 |
|
5 |
.186 |
4.72 |
.020 |
.038 |
|
4 |
.208 |
5.28 |
.020 |
.038 |
|
3 |
.234 |
5.94 |
.020 |
.038 |
|
2 |
.263 |
6.68 |
.020 |
.038 |
|
1 |
.294 |
7.47 |
.020 |
.038 |
|
0 |
.330 |
8.38 |
.020 |
.038 |
|
3/6 |
.387 |
9.83 |
.025 |
.043 |
|
7/16 |
.450 |
11.43 |
.025 |
.043 |
|
1/2 |
.512 |
13.00 |
.025 |
.043 |
|
5/8 |
.640 |
16.26 |
.030 |
.048 |
|
3/4 |
.768 |
19.51 |
- |
.048 |
|
7/8 |
.893 |
22.68 |
- |
.048 |
|
1" |
1.018 |
25.86 |
- |
.055 |
|
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