NiFe Alloy 52 / 4J52 /4J50 Alloy 50 Glass Sealing Capillary Tubes
Alloy 52 Contains 52% nickel and 48% iron and is widely used in the telecommunications industry.It also finds a application in a wide variety of electronic applications,especially for glass seals.
Alloy 52 is one of the glass to metal sealing alloys designed for use with a variety of soft glasses. Known for a coefficient of thermal expansion that is almost constant up to 1050F (565 C).
Size Range:
*Sheet ---Thickness 0.1mm~40.0mm, width:≤300mm,Condition: cold rolled(hot), bright, bright annealed
*Round Wire---Dia 0.1mm~Dia 5.0mm,Condition: cold drawn, bright, bright annealed
*Flat Wire ---Dia 0.5mm~Dia 5.0mm,length:≤1000mm,Condition:flat rolled, bright annealed
*Bar ---Dia 5.0mm~Dia 8.0mm,length:≤2000mm,Condition:cold drawn,bright, bright annealed
Dia 8.0mm~Dia 32.0mm,length:≤2500mm,Condition:hot rolled,bright, bright annealed
Dia 32.0mm~Dia 180.0mm,length:≤1300mm,Condition:hot forging,peeled, turned, hot treated
*Capillary ---OD 8.0mm~1.0mm,ID 0.1mm~8.0mm,length:≤2500mm,Condition: cold drawn, bright, bright annealed.
*Pipe ---OD 120mm~8.0mm,ID 8.0mm~129mm,length:≤4000mm,Condition: cold drawn, bright, bright annealed.
Chemistry:
| |
Cr |
Al |
C |
Fe |
Mn |
Si |
P |
S |
Ni |
Mg |
| Min |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
50.5 |
-- |
| Max |
0.25 |
0.10 |
0.05 |
Bal. |
0.60 |
0.30 |
0.025 |
0.025 |
-- |
0.5 |
Average Linear Expansion Coefficient:
| Grade |
α1/10-6ºC-1 |
| 20~100ºC |
20~200ºC |
20~300ºC |
20~350ºC |
20~400ºC |
20~450ºC |
20~500ºC |
20~600ºC |
| 4J52 |
10.3 |
10.4 |
10.2 |
10.3 |
10.3 |
10.3 |
10.3 |
10.8 |
Properties:
| Condition |
Approx. tensile strength |
Approx. operating temperature |
| N/mm² |
ksi |
°C |
°F |
| Annealed |
450 - 550 |
65 - 80 |
up to +450 |
up to +840 |
| Hard Drawn |
700 - 900 |
102 - 131 |
up to +450 |
up to +840 |
| Forming: |
| The alloy has good ductility and can be formed by standard means. |
| Welding: |
| Welding by conventional methods is appropriate for this alloy. |
| Heat Treatment: |
| Alloy 52 should be annealed at 1500F followed by air cooling. Intermediate strain relieving can be performed at 1000F. |
| Forging: |
| Forging should be done at a temperature of 2150 F. |
| Cold Working: |
| The alloy is readily cold worked. Deep drawing grade should be specified for that forming operation and annealed grade for general forming. |
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