Elgiloy Alloy Super Elastic Alloy Material 3J21 AMS 5833 UNS R30003
Precision Alloy 3J21
*Elgiloy alloy(Co40CrNiMo),AMS 5833,UNS R30003,Chinese 3J21
Usage: It is applied to make antimagnetic, corrosionproof and long range elasticity alloy for elastic cell.
Note: This Cobalt-Chromium-Nickel alloy also known as Elgiloy gives a combination of high strength, ductility and good mechanical properties and is age hardenable. Phynox also has excellent fatigue life, corrosion resistance in numerous environments and is non-magnetic. This alloy is recommended where a high resistance to corrosion and / or low relaxation at temperatures up to 380°C are required.
Relative Grade:
Russia |
U.S.A. |
Japan |
France |
Standard |
40KJXM |
Elgiloy |
NAS604PH K•R•N |
phynox |
YB/T5253-1993 |
Grade and Chemical Composition (see Table 1)
Table 1 Grade and Chemical Composition of 3J21
Grade |
Chemical Composition(%) |
|||||||||
C |
Mn |
Si |
P |
S |
Ni |
Cr |
Co |
Mo |
Fe |
|
≤ | ||||||||||
3J21 |
0.07~0.12 |
1.70~2.30 |
0.60 |
0.010 |
0.010 |
14.0~21.0 |
19.0~21.0 |
39.0~41.0 |
6.50~7.50 |
Balance |
Remark: The size and shape must be tally with the standard of GB/T15006 for "elastic alloy".
Mechanical Property(see Table 2)
Table 2 Mechanical Property
Shape |
Delivery State |
Thickness&Diameter/mm |
Property&Classfication |
Mechanical Property |
|
Tensile Strength (ób/Mpa) |
Elongation δ(%) |
||||
≥ | |||||
Strip |
Cold Rolling |
Tk0.20~2.50 |
A |
1175~1470 |
5 |
B |
1470~1765 |
3 |
|||
Wire |
Cold Drawn |
Dia0.20~5.00 |
A |
1275~1570 |
|
B |
1570~1865 |
|
· The strip has been used typically for springs requiring a combination of high strength up to 800°F(427°C),excellent corrosion resistance, and good fatigue properties, but usage is not limited to such applications. Alloy is nonmagnetic.
Physical Property (see table 3)
Table 3 Physical Property of 3J21 after aged
Item |
Target |
Modulus of Elasticity E/Mpa |
196000~215500 |
Shear Modulus G/Mpa |
73500~83500 |
Density (g/cm³) |
8.4 |
14 |
|
Resistivity ρ /(μΩ•m) |
0.92 |
Magnetic Rate k/106 |
50~1000 |
Remark: The K value is the value of the centimeter gram second system.
Specification: Sheet/Plate, Bar/Rod/Wire/Coil
Size Range:
1. Sheet---Thickness 0.10mm~2.50mm, width:10.0~210mm,Condition: cold rolled, bright,
2. Plate---Thickness 2.5mm~40.0mm,width:≤300mm,Condition: cold rolled, hot rolled
3. Round Wire---Dia 0.1mm~Dia 7.0mm,Condition: cold drawn, bright
4. Flat Wire---Dia 0.5mm~Dia 7.0mm,length:≤1000mm,Condition:flat rolled, bright
5. Bar---Dia 7.0mm~Dia 10.0mm,length:≤2000mm,Condition:cold drawn,bright