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Non Magnetic 3J21 Co40CrNiMo Superelastic Alloy

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
Product Details
Equal Grades UNS R30003, 3J21, Phynox, W.Nr 2.4711 Forms Of Supply Strip, Wire, Round Bar, Forging
Spec YB/T 5253-2011 UNS No. R30003
Product Name Superelastic Alloy Package Playwoode Case
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3J21 Superelastic Alloy


Non Magnetic Superelastic Alloy


Co40CrNiMo Super Elastic Alloy

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Product Description

3J21(Co40CrNIMo)Superelastic Alloy for elastic components


XUNSHI supplies 3J21 alloy for elastic components. 

3J21 is a Co-Cr-Ni-Mo high-elastic alloy, which belongs to 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.

The 3J21 alloy strip we supplied has now been successfully exported to a pan-plug sealing manufacturer in Italy, replacing the elastic materials previously produced in France.


Successful project: Spring energized seal-Italian customer

The customer used Phynox strip from France in the past. After 6 months' strict test in the lab, our 3J21 strip is commented as excellent in performance.


  • Combination of high strength, ductility and good mechanical properties at ambient temperatures
  • Excellent fatigue life
  • Excellent corrosion resistance in numerous environments
  • Non magnetic
  • Age hardenable (Spring Temper only)
  • Good for sea water applications


  • Springs
  • Seal components
  • Medical devices
  • Components for watches
  • Aerospace applications
  • Petro-chemical applications
  • Marine engineering

Typical composition(*% in weight)

C=0.15, Ni=15.50, Co=40.00, Cr=20.00, Mo=7.00, Mn=2.00, Fe=remainder


The forms of supply

Wire spec:0.10-6.0mm

Strip spec:0.05-2.0mm

Round bar spec:Diameter 20-100mm


The Equal grades: R30003,Phynox(Francce),Elgiloy*,Co40CrNiMo,NAS604PH,K·R·N(Japan),40КHXM(Reussia)

Non Magnetic 3J21 Co40CrNiMo Superelastic Alloy 0Non Magnetic 3J21 Co40CrNiMo Superelastic Alloy 1Non Magnetic 3J21 Co40CrNiMo Superelastic Alloy 2