|
Products－Industrial temperature sensor－Assembling type thermocouples－Materials and dimensions of protection tube
Material and Standard Dimensions of Protection Tube
|
Material
|
Symbol
|
Dimension(mm)
|
Max Length (mm)
|
Operating Temp Limit (℃)
|
Features
|
|
OD
|
ID
|
Normal
|
Max
|
|
SUS304
|
A
|
10
|
7
|
2000
|
850
|
950
|
Having high heat resistance, acid resistance and alkali resistance
|
|
12
|
9
|
|
16
|
12
|
3950
|
|
22
|
16
|
|
SUS316
|
C
|
10
|
7
|
2000
|
850
|
950
|
Almost same as SUS304 in heat resistance, acid resistance and alkali resistance，but corrosion resistance is higher than SUS304 at high temperature．
|
|
12
|
9
|
|
16
|
12
|
3950
|
|
22
|
16
|
|
SUS316L
|
CL
|
10
|
7
|
2000
|
850
|
950
|
C amount decreased from SUS316, Inter-granular corrosion resistant material．
|
|
12
|
9
|
|
16
|
12
|
3950
|
|
22
|
16
|
|
SUS310S
|
D
|
16
|
12
|
3950
|
1050
|
1100
|
Having high Ni-Cr content．High heat resistant steel which has high oxidation resistance at high temperature．
|
|
22
|
16
|
|
28
|
16
|
|
SUH446
|
P
|
22
|
16
|
3950
|
1100
|
1200
|
27Cr steel Endurable against reducing Coflame Having resistance against sulfuric gas．
|
|
SANDVIK P4
|
22
|
16
|
|
28
|
21
|
|
UMCO50
|
U
|
22
|
16
|
3950
|
1150
|
1200
|
Co base alloy．High heat resistant alloy which has abrasion resistance and sulfuric resistance．
|
|
28
|
21
|
|
KANTHAL AF
|
K
|
22
|
21
|
3950
|
1100
|
1300
|
Having mechanical strength in high temperature．Not suitable for welding of metallic fittings．
|
|
INCONEL600 (NCF600)
|
B
|
22
|
16
|
3950
|
1000
|
1250
|
Having most high resistance in both oxidized and reduced atmosphere at high temperature．
|
|
TITANIUM
|
T
|
16
|
12
|
3950
|
250
|
500
|
Corrosion resistance at low temperature is fairly goodbut oxidized and fragile at high temperature．
|
|
22
|
16
|
|
C4
|
C4
|
16
|
12
|
2000
|
300
|
550
|
Excellent corrosive resistance for alkali and acid industries
|
|
22
|
16
|
Technical Parameter of Protection Tube
|
Material
|
Symbol
|
Dimension(mm)
|
Max Length
(mm)
|
Operating Temp Limit(℃)
|
Features
|
|
OD
|
ID
|
Normal
|
Max
|
|
Alumina
|
P1
|
8
|
5
|
1000
|
1600
|
1700
|
Fairly stabilized and reduced atmosphere. Having a high corrosion resistance at high temperature. Suitable for measuring of minimum 1600℃ furnace temperature and fusing metal temperature．
|
|
10
|
6
|
|
12
|
9
|
|
16
|
11
|
|
18
|
14
|
|
20
|
15
|
|
High Alumina
|
P0
|
8
|
5
|
1000
|
1700
|
1900
|
Having high heat resistance, corrosion resistance and mechanical strength. Hard material and high abrasion resistant.
|
|
10
|
6
|
|
12
|
9
|
|
16
|
11
|
|
20
|
16
|
|
15
|
6
|
|
20
|
10
|
|
Silicon Carbide
|
GK
|
20
|
12
|
1000
|
1650
|
-
|
Having fire resistance and good heat conductivity. Not easily corroded by zinc, Aluminum, lead, acid and alkali．Strong against rapid heating and cooling. Suitable for the use for outer tube of duplex protection tube．
|
|
25
|
17
|
|
30
|
20
|
|
35
|
25
|
|
40
|
25
|
|
45
|
30
|
|
50
|
30
|
|
60
|
40
|
|
