BUCHANAN Terminal Blocks
Note:
All part numbers
are RoHS Compliant.
ERT Series, Medium Duty Radiation Resistant
Physical Properties
Effect of Radiation on Physical
Properties
The effects of radiation (neutron and
gamma particles) on RYTON R-4
material have been studied. Since
RYTON, as an engineering plastic, may
fill applications in nuclear installations
these effects are important. The test
results show no effects on physical
properties by these relatively high
exposures to gamma and neutron
radiation. There is no indication from
these data of crosslinking or degradation
of the RYTON R-4 material.
Note:
Determination of the suitability of
the ERT Series Blocks for particular
applications rests solely with customers.
Description
Strap Screw
Tubular Clamp
Tubular Screw
End Section
Catalog
Number
0721ERT
0725ERT
0724ERT
0730ERT
Part
Number
1437394-9
1-1437394-6
1-1437394-1
2-1437394-0
Housing: RYTON (Polyphenylene Sulfide)
Density
100 lbs./ft.3
Tensile Strength
19,500 psi
Elongation
1.3%
Flexural Modulus
1,700,000 psi
Flexural Strength
29,000 psi
Compressive Strength
21,000 psi
Izod Impact Strength
Unnotched, 1/8” Specimen
8.0 ft. lbs./in.
Notched, 1/8” Specimen
1.4 ft. lbs./in.
Rockwell Hardness
R-123
Water Absorption
0.05%
Heat Distortion Temp. @ 264 psi 500˚F
Specific Heat, 24 hrs. @ 25˚C
0.25 btu/lb./˚F
Thermal Conductivity
2.0 btu-in./h-ft.2 F
Coefficient/Linear Thermal Exp.
2.5 x 10-5 in./in./˚ F
Flammability, UL 94
V-0
Dielectric Strength
350 volts/mil
Dielectric Constant, 25˚C 1 kHz
3.9
1MHz
3.8
Dissipation Factor, 25˚C 1kHz
0.0010
1MHz
0.0013
Conditions
Temperature
Radiation
Intensity
Used Particle Detectors
Radiation Dose
0
A. Neutron
5 x 10 rad
1 x 10 rad
B. Gamma
5 x 10 rad
1 x 10 rad
5 x 10 rad
In Reactor Core
35˚C
Mainly neutrons
1010 ergs g-1 (C)
Calorimeter and
activation detectors
Flexural Strength
psi
28,700
29,000
28,900
29,700
30,200
28,500
ASTM Test
D1505-68
D638-72
D638-72
D790-91
D790-91
D695-69
D785-65
D570-63
D648-72
D149-64
D150-70
D150-70
In Water Pool
30˚C
Mainly gamma
109 ergs g-1 (C)
Ionization chamber
Modulus of
Elasticity, psi
1,900,000
1,910,000
1,880,000
1,810,000
1,840,000
1,820,000
LR25557
E63810
RYTON is a registered trademark of Chevron Phillips Chemical Company.
252
Catalog 1308389
Revised 6-07
www.tycoelectronics.com
Dimensions are in millimeters
and inches unless otherwise
specified.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
USA: 1-800-522-6752
Canada: 1-905-470-4425
Mexico: 01-800-733-8926
C. America: 52-55-1106-0803
South America: 55-11-2103-6000
Hong Kong: 852-2735-1628
Japan: 81-44-844-8013
UK: 8706-080-208
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