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High Hardness And Strength 3J21 Superelastic Alloy Wire Strip Rod

Place of Origin China
Brand Name XUNSHI
Certification ISO 9001
Model Number 3J21
Minimum Order Quantity 20kg
Price Available per request
Packaging Details Playwoode case
Delivery Time 45-60 days
Payment Terms T/T, Western Union
Supply Ability 500 kg per month

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Product Details
Equal Grades Elgiloy,Phynox,NAS604PH Forms Of Supply Strip, Wire, Rod, Forging
Spec YB/T 5253-2011 UNS No. R30003
Product Name Superelastic Alloy Package Playwoode Case
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High Hardness Superelastic Alloy


3J21 Super Elastic Alloy


High Strength Superelastic Alloy

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Product Description

High Hardness And Strength 3J21 Superelastic Alloy Wire Strip Rod


3J21 is a deformation reinforced cobalt-based alloy, with good plastic properties and easy to process in the solid solution state. After high strain rate cold processing and time limit treatment, 3J21 can obtain high mechanical and elastic properties, but after the solid solution treatment, the alloy can no longer be strengthened by time limit treatment.



3J21 has high strength, high hardness,high elasticity limit, high energy storage ratio, high fatigue strength, small elasticity lag and rear effect, non magnetic, good wear resistance, seismic and shock resistance, excellent corrosion resistance, can work at high temperature 400 °C and also can work normally at low temperature.






Seal components

Medical devices

Components for watches

Aerospace applications

Petro-chemical applications

Marine engineering


Chemical compositions (% in weight)

C 0.07~0.12
Mn 1.70~2.30
Si ≤0.60
P ≤0.010
S ≤0.010
Co 39.0~41.0
Cr 19.0~21.0
Ni 14.0~16.0
Mo 6.50~7.50
Ce 0.10~0.15
Fe Balance


3J21 heat treatment

Elastic element: 30%~70% cold strain + 370 °C~480 °C, 2~4 hours, air cold

Axis tip: 90% cold strain + 500 °C~550 °C, 4 hours, air cold

Oxid film appears on the surface of the alloy after heat treatment, and that can be removed by alkali immersion-acid washing method.


The Equal grades

Elgiloy, Phynox,NAS604PH,UNS R30003(ASTM F1058),W.Nr 2.4711


The available forms of 3J21

Usually, 3J21 is supplied in cold rolled strip and cold pulled wire form, and also can be provided upon customer request in rods and forgings

Wire: 0.10-6.0mm

Strip: 0.05-2.0mm

Rod diameter 20-100mm

The leading time for wires and rods is around 30days.

High Hardness And Strength 3J21 Superelastic Alloy Wire Strip Rod 0High Hardness And Strength 3J21 Superelastic Alloy Wire Strip Rod 1High Hardness And Strength 3J21 Superelastic Alloy Wire Strip Rod 2