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CUSTOM MARLOX® THERMOCOUPLES
Sheath
Alloys
304
Stainless Steel (18% Chromium - 8% Nickel)
A general
purpose, economical, readily available sheath material that has
good corrosion and oxidation resistance.
Maximum
operating temperature is 1650°F.
310
Stainless Steel (24% Chromium - 19% Nickel)
A material
that has improved resistance to corrosion as compared to 304SS
and the best resistance to oxidation of the "300" series stainless
steels.
Maximum
operating temperature of 2100°F.
316
Stainless Steel (16% Chromium - 10% Nickel)
A material
that has superior corrosion resistance as compared to 304SS or
310SS with improved oxidation resistance and a higher hot strength
than 304SS.
Maximum
operating temperature is 1700°F.
InconelTM600
(72% Nickel - 17% Chromium)
A material
that is readily available and has outstanding resistance to oxidation,
corrosion and scaling. Should not be used in the presence of sulfur
above 1600°F. (TMInternational
Nickel Company)
Maximum
operating temperature is 2100°F.
Temperature
Recommendation
The temperature
limits for continuous duty, grounded junction thermocouples
are shown for available sheath sizes and thermocouple calibrations.
Exposed junction thermocouples should be used at lower temperatures
for equivalent service life.
| LIMIT
TEMPERATURE °F CONTINUOUS DUTY |
| Sheath
Diameter (Inches) |
Nominal
Tube Wall Thickness
(Inches) |
Wire
Gauge AWG |
ANSI
Thermocouple Type |
| Single
TC Element |
Dual
TC Element |
J |
T |
K |
E |
| 0.020 |
0.003 |
38 |
- |
700 |
400 |
1600 |
800 |
| 0.032 |
0.004 |
34 |
- |
700 |
400 |
1600 |
800 |
| 0.040 |
0.006 |
33 |
- |
700 |
400 |
1600 |
800 |
| 0.062 |
0.009 |
28 |
30 |
700 |
400 |
1600 |
800 |
| 0.125 |
0.017 |
22 |
24 |
700 |
400 |
1600 |
800 |
| 0.187 |
0.025 |
20 |
21 |
900 |
500 |
2000 |
1000 |
| 0.250 |
0.033 |
16 |
18 |
1000 |
600 |
2000 |
1100 |
| 0.3125 |
0.041 |
16 |
- |
1000 |
600 |
2000 |
1100 |
| 0.375 |
0.052 |
15 |
- |
1100 |
700 |
2000 |
1200 |
| 0.500 |
0.070 |
10 |
- |
- |
- |
- |
- |
DIM.
TOLERANCE: Up to 0.062 ±0.001"; 0.125 to 0.500 ±0.003"
For
more information regarding Marlox Thermocouples,
Please consult your Marlin catalog, Pages C-21 to C-44.
If
you do not have a Marlin Catalog - Click
Here!
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