Elgiloy Alloy Super Elastic Alloy Material 3J21 AMS 5833 UNS R30003

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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

Mean coefficient of linear expansion20-100°C/( 10-6/K)

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