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Metal
Protection
Tubes
-
Nominal Pipe Sizes
(NPS)
Richards metal
thermocouple
protection tubes
are
manufactured using our special processes
to
maximize the tube service
life.
This
is
evident
by
our
uniquely
shaped,
heavy mass tips,
which
have
been
proven in the field for
years.
Prior
to
shipment, each tube
goes
thru our
Hydro-Pneumatic testing
to
check
for
porosity.
Protection
tubes
are
typically
made
with
a closed
tip
and one
thread
on
the cold end,
but
they are
also available
with open ends
and
various threading
options.
Maximum service
temperature
2300'F
(1
260'C)
in
low
stress, oxidizing
atmospheres.
Best
used over
1750"F (955'C)
and up
to
2400'F (1315'C)
for short
term.
Excellent resistance
to
carburization,
nitrid
i
ng, and
Chlorine attack.
#14
Seamless
Nickel
Alloy
(214)
Nickel 75%
Chromium 16%
Aluminum 4.5%
lrom 3%
Manganese
.5%
214
Silicon
.2%
Zirconium
.1"h
Carbon
.05"/",
Yttrium
.01%
std 1.05 26.7 .82
20.8
std .84
21
.3 .62
15.7
std .54 13.7 .36
9.1
314
112
114
1
.13
.85
.42
1.68
1.27
.63
1434-
'1422-
1414-
Maximum service
temperature
1
600'F
(870'C)
i
n oxidizi
ng atmospheres.
Considered
better than 304ss
and
31Oss
on corrosion.
Subject
to
carbide
precipitation
between 800-
1
000"F
(427-538"C).
Used
in chemical and food
applications.
#16 Seamless
Stainless
Steel
(316)
Nickel
1O-14%
Chromium
16-18%
Molybdenum 2-3%
Manganese
2o/o
Silicon
1%
Phosphorous
.045%
Carbon .08%
Sulfur
.03%
tl6SS
1"
Std 1.32 33.5
1
.05
26.7
3/4"
Std 1.05 26.7 .82
20.8
3/4"
XH
1
.05 26.7 .74
18.8
314"
NPT 1.25
31
.8 .56
14.2
1/2"
Std .84
21
.3 .62
15.7
112"
XH .84
21
.2 .55
14.0
3/8"
Std .68 17.3 .49
12.4
1/4"
Std .54 13.7 .36
9.1
1/8"
Std .41 10.4 .27
6.9
1
.68
1
.13
1
.47
3.20
.85
1
.09
,57
.42
.24
2.50
1
.68
2.19
4.76
1.27
1,62
.85
.63
.36
1601-.
1634-*
1634XH-
1634SP-
1622-*
1612XH-
1638-*
1614-*
1618-*
Maximum service temperature
21
00"F
(1
1
50'C)
in oxidizing
atmospheres.
Good
resistance
to
carburizing
in
reduci
ng
envi
ronments.
Resists heat
scaling.
Better
than
304ss
on corrosion.
#20 Seamless
Stainless
Steel
(310)
Chromium
24-26o/",
Nickel
19-22%
Silicon
1
.5"/",
Manganese
2"/"
Carbon
.25"/",
Phosphorous .045%
Sutfur
.ogo/o,
irlOss
lron (Balance)
1"
Std 1.32 33.5
1
.05
26.7
3/4"
Std 1.05 26.7 .82
20.8
1/2"
Std .84
21
.3 .62
15.7
1
/4"
Std .54 13.7 .36
9.1
1/8"
Std .41 10.4 .27
6.9
1
.68
1.13
.85
.42
.24
2,50
1.68
1.27
.63
36
1601-
1
634-
1622-
1614-
1618-
Maxi
mum service temperature
1000'F (540"C)
in
non-
oxi
d
i
zi
ng applications.
Typically used in galvanizing,
tin, molten
babbit
and
magnesium, petroleum,
and
water lines.
Scales
rapidly
over
1200'F
(650"C)
DXH & XH Seamless
Carbon
Steel
Double extra
heavy wall
Extra
heavy wall
Carbon Steel
1"
DXH 1.32 33.5 .60
15.2
1"
XH 1.32 33.5 .96
24.4
314"
XH
1
.05 26.7 .74
18.8
112"
XH .84
21
.2 .55
14.0
3/8"
Std .68 17.3 .49
12.4
1
/4"
Std .54 13.7 .36
9.1
1i8"
Std .41 10.4 .27
6.9
3.1
1.47
1
.09
.57
,42
.24
4.61
2.19
1.62
.85
.63
.36
SSO1
DXH.*
ss01xH-*
SS34XH.-
SS12XH-*
ss38-*
ss14-*
ssl
g-.
Maximum service temperature
2200"F (1204"C)
in oxidizing
and
Reducing atmospheres.
Excellent resistance to
sulfur,
chlorides,
and
hot corrosion.
Used in
waste
inceneration.
1
60H
R Seamless
N
ickel Alloy
(H
R-160)
Nickel
37"/", Cobalt 30%
Chromi
um 28"/o,
lron
35%
Silicon
2.75"/",
Molybdenum
1"/"
Tungsten
to/o
-^,
HR-
1610
Manganese
.57"
r
r
Tltanium
.5%,
Carbon
.05'/"
3/4"
Std 1.05 26.7 .82
20.8
1/2"
Std .84
21
.g .62
15.7
1
.13
.85
1.68
1.27
160H
R34-*
160HR22-*
Maximum service temperature
1300'F (700"C)
in oxidizing
atmospheres.
Typically
used
i
n molten-metal applications.
CIXH
Cast
lron
Ej:?
iffH,.JSli,ontube
Gasr
tron
Tube
LD.
-
.88 lnches (22.4mm)
314"
female
internal thread.
314"
FNPT
1.63
41
.4 .88
22.4 4.8
7
.14
clxH-*
Maximum service temperature
1300'F (700'C)
in oxidizing
atmospheres.
Typically
used
i
n molten-metal applications.
Cast
lron
(Ceramic Coated)
Extra heavy black
ceramic
glaze.
Handle with care.
cast
iron protection
tube.
Coated
Tube l.D.
-
.88 lnches (22.4mm)
314"
female
internal thread.
314"
FNPT
1
.63
41
.4 .88
22.4 4,8
7
.14
ctxH-cG-*
*
Add,,
tub,e,lenffi
,
{P}
as' the'
sffi
x,',,Multi$lss.,oJ
6''',
(1
52
;4m,fl1
are,
ekedi,
Page 88