Ceramvar Alloy Vacon20

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Xiamen Jingxin Imp. & Exp. Co.,Ltd
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jingxin(Mr.)  

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phone:

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Beijing

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Xiamen Jingxin Imp. & Exp. Co.,Ltd

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http://www.astrongmagnets.com/ http://jingxin.nt-dongya.com/

Product details

Ceramvar Alloy Vacon20

Pricision Alloy 4J33/4J34(YB/T5234-1993)

*Ceramvar alloy, ASTM F1466, (Fe-Ni27-Co25), Chinese 4J33/4J34

Main application:Match with the electricity vacuum industry with the ceramics to seal meets.


Cross Reference: 

Grade

Russia

U.S.A.

Japan

Germany

4J33

33Hk(Ni33Co17)

-

KV-4(Ni33Co17)

-

4J34

31HK(Ni31Co20) 24HK(Ni25Co18)

Ceramvar(Ni27Co25)

-

Vacon20(Ni28Co20)


Grade & Chemical Composition  (See Table 1) 


Table 1 Grade & Chemical Composition


Grade

Chemical Composition (%)

C

P

S

Mn

Si

Ni

Co

Fe

4J33

0.05

0.020

0.020

0.50

0.30

32.1~33.6

14.0~15.2

Balance

4J34

0.05

0.020

0.020

0.50

0.30

28.5~29.5

19.5~20.5

Balance


Notes: 

  1. Under condition that the average coefficient of the linear expansion meets the requirements o

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 GB/T14985.


Mechanical Properties (See Table 2—Table4) 


Table 2 Tensile Strength (for wires)


Symbol

State

Tensile Strength

R

Annealed

<585

1

Unannealed

>860


Table 3 Tensile Strength (for Strips)


Symbol

State

Tensile Strength/MPa

R

Annealed

<570

l

Unannealed

>700


Table 4 Hardness of Deep Stamping Strips


State

Thickness

Hardness HV

Deep-Stamping

>2.5

≤170

≤2.5

≤165


Physical Property (See Table 5 & Table 6) 


Table5 Linear Expansion Cofficient


Grade

Heat treatment of the samples

Mean Coefficient of Linear Expansion ã/(10-6/K)

20~300°C

20~400°C

20~500°C

20~600°C

4J33

Heat to 900±20°C in the protective atmosphere or in vacuum condition, hold for 1 hour, cooled to 200°C at a rate less than 5°C/h, and take out from the furnace.

 

6.0~6.8

6.6~7.4

 

4J34

 

6.3~7.1

 

7.8~8.5


Table 6 Typical Coefficient of Linear Expansion


Grade

Mean Coefficient of Linear Expansion at Different Temperature ã/(10-6/K)

20~200°C

20.300°C

20~400°C

20~500°C

20~600°C

4J33

7.1

6.5

6.3

7.1

8.5

4J34

7.5

6.9

6.6

6.9

8.3

Note: The values in the tables are for reference only.

Specification: Sheet/Plate, Bar/Rod/Wire/Coil,Capillary/Pipe/Tube


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:≤3000mm,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