Product details
Grade and Chemical Composition (see Table 1)
Table 1 Grade and Chemical Composition
Grade |
Chemical Composition (%) |
||||||||||
C |
Mn |
si |
P |
s |
Ni |
Cr |
Ti |
A1 |
Fe |
||
≤ | |||||||||||
3J1 |
0.05 |
1.00 |
0.80 |
0.020 |
0.020 |
34.5~36.5 |
11.5~13.0 |
2.70~3.20 |
1.00~1.80 |
Balance |
|
3J53 |
0.05 |
0.80 |
0.80 |
0.020 |
0.020 |
41.5~43.0 |
5.20~5.80 |
2.30~2.70 |
0.50~0.80 |
Balance |
|
Note: The size and shape must comply with the standard of GB/T15001for “elastic alloys”.
Mechanical Property (see Table 2—Table4)
Table 2 Mechanical Property (for the delivery statue)
Grade |
Shape |
Delivery State |
Thickness&Diameter/mm |
Tensile Strength ób/Mpa |
Elongationδ(%)≥ |
3J1 |
strip |
annealed |
0.20~0.50 |
<980 |
20 |
wire |
cold drawn |
0.20~3.00 |
>980 |
|
|
3J53 |
strip |
annealed |
0.20~0.50 |
<885 |
20 |
wire |
cold drawn |
0.20~3.00 |
>930 |
|
Table 3 Mechanical Property(after the heat treament)
Grade |
Shape |
Delivery State |
Thickness&Diameter/mm |
Tensile Strength ób/Mpa |
Elongation δ(%) |
≥ | |||||
3J1 |
strip |
cold rolled |
0.20~2.50 |
1375 |
5 |
Annealed |
0.20~1.00 |
1175 |
8 |
||
wire |
cold drawn |
0.50~5.00 |
1470 |
5 |
|
bar |
cold drawn |
3.0~18.0 |
1375 |
5 |
|
Pipe& flatspring |
hot rolled & hot forged |
6.0~25.0 |
1175 |
10 |
|
3J53 |
strip |
cold rolled |
0.20~2.50 |
1225 |
5 |
Annealed |
0.20~1.00 |
1080 |
8 |
||
wire |
cold drawn |
0.50,5.00 |
1375 |
5 |
|
bar |
cold drawn |
3.0~18.0 |
1325 |
5 |
|
Pipe& flatspring |
hot rolled & hot forged |
6.0~25.0 |
1080 |
10 |
|
Table 4 Yield Strength (after the heat treament)
Grade |
Delivery State |
Thickness/mm |
Yield Strength/Mpa |
3J1 |
cold rolled |
0.50~2.50 |
980 |
Annealed |
0.50~1.00 |
735 |
|
3J53 |
cold rolled |
0.50~2.50 |
885 |
Annealed |
0.50~1.00 |
685 |
Physical Property (see Table5&Table6)
Table 5 physical propertymechanical property (after aging)
Item |
3J1 |
3J53 |
Modulus of elasticity (E/MPa) |
186500~206000 |
176500~191000 |
Shear elasticity (G/MPa) |
68500~78500 |
63500~73500 |
Desinty (g/cm3) |
8.0 |
8.0 |
Mean coefficient of linear expansion20-100°C/(10-6/K) |
|
8.5 |
Saturation induction density (B600/T) |
|
0.7 |
Resistivity ρ /(μΩ•m) |
1.02 |
1.1 |
Magnetic Rate k/106 |
150~250 |
|
Vickers hardness (HV) |
400~480 |
350-450 |
Note: The K value is the value of the centimeter gram second system.
Table 6 The temperature coefficient of the Modulus of elasticity for 3J53 alloy
Aging Temperature/°C |
The temperature coefficient of the Modulus of elasticity for 3J53 alloy |
|
Cold Rolling |
Annealed |
|
500 |
-38~-15 |
+18~+12 |
550 |
-22~0 |
+10~+35 |
600 |
-10~+10 |
+35~+55 |
650 |
0~+20 |
+42~+64 |
700 |
0~+20 |
+40~+60 |
750 |
-4~+16 |
+28~+50 |
