| Customization: | Available |
|---|---|
| Key Words: | 4j44 Pipe/Tube |
| Thickness: | 5mm - 100mm |
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LORK is a alloy manufacturer with 20 years of manufacturing experience.
Features: Constant expansion iron-nickel-cobalt alloy, with a certain linear thermal expansion coefficient in the range of 20°C~400°C.
Uses: Used to make iron-nickel-cobalt alloy strips, bars, plates, and tubes that match and seal with hard glass.
Suitable for transmitting tubes, oscillating tubes, ignition tubes, transistors, tube sealing plugs, relay housings and other electric vacuum devices.
It has a certain linear expansion coefficient within the temperature range of 20ºC-450ºC and can match and seal with hard glass firmly.
4J44 Chemical Composition (%)
|
Type |
C |
P |
S |
Mn |
Si |
Cu |
Cr |
Mo |
Ni |
Co |
Fe |
|
<= |
|
|
|
||||||||
|
4J44 |
0.03 |
0.02 |
0.02 |
0.5 |
0.3 |
0.2 |
0.2 |
0.2 |
34.2~35.2 |
8.5~9.5 |
Bal |
4J44 Coefficient of Thermal Expansion
|
Type |
Coefficient of Thermal Expansion (a/10-6 K-1) |
||
|
20-300ºC |
20-400ºC |
20-450ºC |
|
|
4J44 |
4.3~5.1 |
4.6~5.2 |
-- |
4J44 Tensile Strength
|
Type |
Tensile Strength (Rm/MPa) |
|
Soft |
<=570 |
|
H1/4 |
520~630 |
|
H1/2 |
590~700 |
|
H3/4 |
600~770 |
|
H |
>=700 |
Q1: Do you accept the trial order ?
A1: Yes,if we have the exactly size in stock.we can delivery even 1 piece/meter .
Q2: Can I have free sample before making orders?
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