NiFe Alloy 4J33

Short Introduction:

  • NiFe Alloy 4j33 is suitable for vacuum electronic devices (such as tube, oscillation tube, klystron, magnetron, tube, etc.

Description

NiFe Alloy 4J33

NiFe Alloy 4J33

Material grades and equivalents

Trademark

Japan

Russia

UNS

W.Nr

4J33

KV-4(Ni33Co17)

33HК(Ni33Co17)

-

-

Chemical composition:

Alloy

C

P

S

Mn

Si

Ni

Cr

Co

Cu

Fe

N

No

AI

Max

4J33

0.05

0.02

0.02

0.05

0.3

32.1-33.6

-

14-15.2

-

REST

-

-

-

Status code

State

Tensile strength/Mpa

R

Soft state

<585

1

Hard state

>660

Porcelain Alloy Strip Tensile Strength:

Status code

State

Tensile strength/Mpa

R

Soft state

<570

1

Hard state

>700

Hardness of deep-drawn strip:

Delivery Status

Thickness/mm

Hardness HV

Deep Drawing

>2.5

≦170

≦2.5

≦165

The linear expansion coefficient of the porcelain sealing alloy:

Grade

Sample heat treatment system

The average linear expansion coefficient ã/(10-6/k)

Heat in a protective atmosphere or vacuum to 900±20°C, keep warm for 1h, cool at a rate of no more than 5°C/min to below 200°C

20~300℃

20~400℃

20~500℃

20~600℃

4J33

6.0~6.8

6.6~7.4

7.8~9.5

4J34

6.3~7.1

Typical linear expansion coefficient of the alloy:

Grade

The average coefficient of linear expansion of the metal in different temperature ranges ã/(10-6/k)

20~200

20~300

20~400

20~500

20~600

4J33

7.1

6.5

6.3

7.1

8.5

4J34

7.5

6.9

6.6

6.9

8.3

Characteristic as below:

Similar to 95% alumina ceramic linear thermal expansion coefficient

Processing conditions and application:

It is suitable for vacuum electronic devices (such as tube, oscillation tube, klystron, magnetron, tube, etc.