

Typical
Protection
Wire
Pipe
Outside Diameter
Application
Tube
Gauge
Size
Inches
mm
Type J
Type K
316SS
Maximum service temperature
1600°F (780°C) in oxidizing
atmospheres.
Considered better than 304SS
on corrosion.
#16 Seamless Stainless Steel (316)
Nickel 10-14%, Chromium 16-18%
Molybdenum 2-3%, Manganese 2%
Silicon 1%, Phosphorous .045%
Carbon .08%, Sulfur .03%
8
8
8
8
8
11
14
11
14
14
1” Std
3/4” Std
3/4” XH
3/4” NPT
1/2” XH
3/8” Std
3/8” Std
1/4” Std
1/4” Std
1/8” Std
1.32
1.05
1.05
1.25
.84
.68
.68
.54
.54
.41
33.4
26.7
26.7
31.8
21.3
17.2
17.2
13.7
13.7
10.3
8J4-1601-*
8J4-1634-*
8J4-1634XH-*
8J4-1634SP-*
8J4-1612XH-*
14J4-1638-*
14J4-1614-*
14J4-1618-*
8K4-1601-*
8K4-1634-*
8K4-1634XH-*
8K4-1634SP-*
8K4-1612XH-*
11K4-1638-*
14K4-1638-*
11K4-1614-*
14K4-1614-*
14K4-1618-*
310SS
Maximum service temperature
2100°F (1150°C) in oxidizing
atmospheres.
Resists heat scaling
#20 Seamless Stainless Steel (310)
Chromium 24-26%, Nickel 19-22%
Silicon 1.5%, Manganese 2%
Carbon .25%, Phosphorous .045%
Sulphur .03%, Iron (Balance)
8
8
8
11
14
14
1” Std
3/4” Std
1/2” Std
1/4” Std
1/4” Std
3/8” Std
1.32
1.05
.84
.54
.54
.41
33.4
26.7
21.3
13.7
13.7
10.3
8J4-2001-*
8J4-2034-*
8J4-2022-*
14J4-2014-*
14J4-2018-*
8K4-2001-*
8K4-2034-*
8K4-2022-*
11K4-2014-*
14K4-2014-*
14K4-2018-*
Carbon Steel
Maximum service temperature
1000°F (540°C) in non-oxidizing
applications. Typically used in
galvanizing, tin, molten babbit,
molten magnesium, petroleum
applications and water lines.
#SS Seamless Carbon Steel
Extra Heavy wall (
XH
)
Double Extra Heavy wall (
DXH
)
8
8
8
8
1” DXH
1” XH
3/4” XH
1/2” XH
1.32
1.32
1.05
.84
33.4
33.4
26.7
21.3
8J4-SS01DXH-*
8J4-SS01XH-*
8J4-SS34XH-*
8J4-SS12XH-*
8K4-SS01DXH*
8K4-SS01XH-*
8K4-SS34XH-*
8K4-SS12XH-*
HR-160
Maximum service temperature
2200°F (1204°C) in oxidizing
and reducing atmospheres.
Excellent resistance to sulfur,
chlorides, and hot corrosion.
Typically used in waste incinera-
tion.
#160HR Seamless Nickel Alloy
(HR-160)
Nickel 37%, Cobalt 30%,
Chromium 28%, Iron 3.5%
Silicon 2.75%, Molybdenum 1%
Tungsten 1%, Manganese .5%
Titanium .5%, Carbon .05%
8
8
8
3/4” Std
3/4” XH
1/2” Std
1.05
1.05
.84
26.7
26.7
21.3
8K4-160HR34-*
8K4-160HR34XH-*
8K4-160HR22-*
Cast Iron
Maximum service temperature
1300°F (700°C) in oxidizing
atmospheres. Typically used in
#CI Cast Iron Extra Heavy (CIXH)
Extra Heavy wall.
Cast Iron Protection Tube.
Tube I.D. = .88” (22.4 mm).
3/4” NPT female thread.
8
3/4”
FNPT
1.63
41.4
8J4-CIXH-*
8K4-CIXH-*
Coated Cast Iron
Maximum service temperature
1300°F (700°C) in oxidizing
atmospheres. Typically used in
molten metal applications
#CICG Cast Iron Ceramic Grazed
Extra Heavy
Extra Heavy wall.
Cast Iron Protection Tube.
Tube I.D. = .88” (22.4 mm).
3/4” NPT female thread.
8
3/4”
FNPT
1.63
41.4
8J4-CIXHCG-*
8K4-CIXHCG-*
* Add the required thermocouple length “P” at the end of the part number. Multiples of 6” (152.4 mm) starting at 12” (304.8) are stocked.
Easy to Order -
1 - State quantity
2 - Specify the part number
(ours or competitive)
3 - Specify the length * Multiples of 6” (152.4 mm)
starting at 12” are stocked.
4 - Add letters for mounting attachments
Example:
The part number describes the thermocouple giving the gauge,
type of wire, construction, tube length and mounting device, if any. The part number
8K4-1012XH-24-AF
signifies an 8 gauge, Type K complete assembly, 1/2” NPT extra
heavy 24” long, #10 alloy (32% nickel - 215 chromium) tube, a 1/2” Adjustable Flange
and a screw cover head. Other combinations of thermocouples and tubes can be speci-
fied depending on your application.
!
Note:
If you would like to order a Type E, J, or N assembly, just substitute the “
J
”
with an E, or N in the part numbers listed on this page.
Straight Assemblies - Metal Tubes -Types E, J, K & N - Screw Cover Head
Page 10
Phone: 617.527.4385 Fax: 617.964.3746 Email:
sales@asrichards.com