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address: Xiamen Jingxin Imp. & Exp. Co.,Ltd
Website: http://www.astrongmagnets.com/ http://jingxin.jsjcylqx.com/
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Precision Alloy 4J42/4J48/4J52
The application of Precision Alloy 4J42/4J48/4J52 : It is applied to soft glass-to-metal and ceramic-to-metal seals in electronic component.
*Alloy 42,ASTM F30,UNS k94100,(Fe-42Ni),Chinese 4J42
*Alloy 52,ASTM F30,UNS K95050, (Fe-50Ni),Chinese 4J50
*sealmet HC-4,,alloy426, ASTM F31,UNS k94760, (Fe-42Ni-6Cr),Chinese 4J6
Usage: It is applied to soft glass-to-metal and ceramic-to-metal seals in electronic component.
Table 1 Grade & Chemical Composition
Grade |
Grade & Chemical Composition(%) |
||||||||||
C |
P |
S |
Mn |
Si |
B |
Al |
Co |
Ni |
Cr |
Fe |
|
≤ | |||||||||||
4J6 |
0.05 |
0.020 |
0.020 |
0.25 |
0.30 |
|
0.20 |
|
41.5~42.5 |
5.50~6.30 |
Balance |
4J47 |
0.05 |
0.020 |
0.020 |
0.40 |
0.30 |
|
|
|
46.8~47.8 |
0.80~1.40 |
Balance |
4J49 |
0.05 |
0.020 |
0.020 |
0.40 |
0.30 |
0.02 |
|
|
46.0~48.0 |
5.00~6.00 |
Balance |
4J42 |
0.05 |
0.020 |
0.020 |
0.80 |
0.30 |
|
0.10 |
1.0 |
41.5~42.5 |
|
Balance |
4J45 |
0.05 |
0.020 |
0.020 |
0.80 |
0.30 |
|
0.10 |
|
44.5~45.5 |
|
Balance |
4J50 |
0.05 |
0.020 |
0.020 |
0.80 |
0.30 |
|
0.10 |
|
49.0~50.5 |
|
Balance |
4J52 |
0.05 |
0.020 |
0.020 |
0.60 |
0.30 |
|
- |
|
51.5~52.5 |
|
Balance |
4J54 |
0.05 |
0.020 |
0.020 |
0.60 |
0.30 |
|
- |
- |
53.5~54.5 |
|
Balance |
Notes:
1,Under condition that the average coefficient of the linear expansion meets the requirements of the standard, the content of nickel and cobalt are allowed to deviate from the stated range.
2,The shape and dimensions of the alloys are in compliance with YB/T5235.
Table 2 Heat Treatment & Coefficient of Linear Expansion
Grade |
Heat Treatment System of the Samples |
Average Coefficient of Linear Expansion |
||
20-300°C |
20~400°C |
20-450°C |
||
4J6 |
To be heat treated at a temperature of 1130±20°C in the hydrogen, hold for 15 min., cool to 200°C at a rate less than 5°C/min |
7.6~8.3 |
9.5~10.2 |
|
4J47 |
|
8.1~8.7 |
|
|
4J49 |
8.6~9.3 |
9.4~l0.1 |
|
|
4J42 |
To be heat treated at a temperature of 900±20°C in the hydrogen, hold for 1h, cool at a rate less than 5°C/min to 200°C |
4.0~5.0 |
|
6.5~7.5 |
4J45 |
6.5~7.2 |
6.5~7.2 |
|
|
4J50 |
9.2~10.0 |
9.2~9.9 |
|
|
4J52 |
To be heat treated at a temperature of 850±20°C in the hydrogen, hold for 1h, cool at a rate less than 300°C/H to 400°C |
9.8~11.0 |
9.8~11.0 |
|
4J54 |
10.2~11.4 |
10.2~11.4 |
|
|
Table 3 Typical Expansion Coefficient
Grade |
Average Coefficient of Linear Expansion ã/(10-6/K) |
||||||
20~100°C |
20~200°C |
20~300°C |
20~400°C |
20~450°C |
20~500°C |
20~600°C |
|
4J6 |
6.8 |
7.0 |
7.7 |
9.7 |
|
11.1 |
12.2 |
4J47 |
8.1 |
8.6 |
8.3 |
8.3 |
|
9.1 |
10.0 |
4J49 |
9.0 |
9.0 |
8.9 |
9.6 |
|
10.9 |
11.8 |
4J42 |
5.6 |
4.9 |
4.8 |
5.9 |
6.9 |
7.8 |
9.2 |
4J45 |
7.5 |
7.5 |
7.1 |
7.2 |
7.1 |
8.3 |
9.5 |
4J50 |
9.8 |
9.8 |
9.5 |
9.4 |
|
9.7 |
10.6 |
4J52 |
10.3 |
10.4 |
10.2 |
10.3 |
10.3 |
10.3 |
10.8 |
4J54 |
10.7 |
12.7 |
10.7 |
10.8 |
10.3 |
10.8 |
11.2 |
Size Range:
1.Sheet---Thickness 0.1mm~3.5mm, width:≤300mm,Condition: cold rolled, bright, bright annealed
2.Plate---Thickness 3.5mm~40.0mm,width:≤300mm,Condition: cold rolled, hot rolled, annealed
3.Round Wire---Dia 0.1mm~Dia 5.0mm,Condition: cold drawn, bright, bright annealed
4.Flat Wire---Dia 0.5mm~Dia 5.0mm,length:≤1000mm,Condition:flat rolled, bright annealed
5.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
6.Capillary---OD 8.0mm~1.0mm,ID 0.1mm~8.0mm,length:≤2500mm,Condition: cold drawn, bright, bright annealed
7.Pipe---OD 120mm~8.0mm,ID 8.0mm~129mm,length:≤4000mm,Condition: cold drawn, bright, bright annealed
