4J33、4J34（YB/T5234-1993）
*Ceramvar alloy, ASTM F1466, (Fe-Ni27-Co25), Chinese 4J33/4J34
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
|
Bal
|
|
4J34
|
0.05
|
0.020
|
0.020
|
0.50
|
0.30
|
28.5～29.5
|
19.5～20.5
|
Bal
|
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 GB/T14985.
Mechanical Properties (See
Table 2—Table4)
Table 2 Tensile Strength (for
wires)
|
Symbol
|
State
|
Tensile Strength
/MPa
|
|
R
|
Annealed
|
<585
|
|
L
|
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 /MM
|
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
ā/(10-6/K)
|
|
20～300℃
|
20～400℃
|
20～500℃
|
20～600℃
|
|
4J33
|
Heat to 900±20℃in the protective atmosphere or
in vacuum condition, hold for 1 hour, cooled to200℃ at a rate less than 5℃/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 ā/(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
|
NOTE: The values
in the tables are for reference only.
Specification:
Sheet/Plate, Bar/Rod/Wire/Coil,Capillary/Pipe/Tube
Size Range:
*Sheet---thickness 0.05mm~3.5mm, width:≤350mm,Condition: cold rolled, bright,
bright annealed
*Plate---thickness 3.5mm~40.0mm,width:≤300mm,Condition: cold rolled, hot
rolled, 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:≤3000mm,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
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