• Suzhou Xunshi New Material Co., Ltd
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  • Suzhou Xunshi New Material Co., Ltd
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Contact Person : Allen Sun
Phone Number : +86 18112628895
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3J21 Superelastic Alloy Strip Non Magnetic Wear Resistant Thickness 0.05-2.0mm Co40CrNiMo R30003

Place of Origin China
Brand Name XUNSHI
Certification ISO 9001:2015
Model Number 3J21
Minimum Order Quantity 30 kg
Price Available per request
Packaging Details Playwoode case
Delivery Time 45-60 days
Payment Terms T/T
Supply Ability 500 kg per month

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Product Details
Equal Grades UNS R30003, 3J21, Phynox, Elgiloy, Co40CrNiMo Forms Of Supply Strip, Wire, Round Bar, Forging
Spec YB/T 5253-2011 UNS No. R30003
Product Name Superelastic Alloy Package Playwoode Case
High Light

Superelastic Alloy Non Magnetic


Strip Superelastic Alloy


High Elasticity Limit Superelastic Alloy

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Product Description

Wear Resistance 3J21 Superelastic Alloy Strip Thickness 0.05-2.0mm


3J21 is a Co-Cr-Ni-Mo high-elastic alloy, which 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 is Equal Grade of Elgiloy and Phynox. 


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.



  • 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
  • Shock resistance
  • Excellent Corrosion resistance
  • Working at high and low temperature condition, high temperature up to 400 °C



3J21 is mainly used for elastic element for aviation required wear resistance, corrosion resistance, seismic, no magnetic, thin wire, strip, spring, and film elements below 400℃, but also for making special bearings with highcorrosion resistance and non magnetic, and 3j21 also used for making small shaft, ball, stamping mold and blade tools.


Application in Spring production
R30003 cold drawn wire and cold rolled strip and foil are used to produce high performance spring. One of our customers from Italy produces spring energized seal/ Variseal. This customer requires very thin width of strip. The smallest size is thickness 0.80mm x width 1.0mm. Xunshi is proud to provide a one-stop solution for this customer and our customer is very satisfied with our product quality and service.

Application in diaphragm valve
R30003 cold rolled strip and foil are used as diaphragm in diaphragm valves. Xunshi supplies R30003 cold rolled foil of thickness 0.10mm and 0.12mm to a diaphragm valve factory in China. This customer has a strict requirement of surface quality which surface roughness must be less than 0.2mm. Xunshi managed to find a solution and successfully delivered the strip needed.

Application in Mobile phone
R30003 cold drawn wire diameter 1.0mm was used in a well-known mobile phone. This customer has very high quality requirement, including mechanical properties, dimension tolerance and surface quality. With the help of our partners, Xunshi supplied R30003 straight wire diameter 1.0mm to this customers. And the customer speak high of our product.

Application in Petrol Industry
We supply R30003 cold rolled plate 1.6mm x 160mm x 1000mm to a world famous customer who is a leading company in oilfield technical services company, mainly engaged in oilfield services and seismic data acquisition and processing businesses.


Available forms

  • Cold drawn wire diameter: 0.10-6.0mm
  • Cold rolled strip thickness: 0.08-2.0mm, width 1-200mm
  • Hot forged rod diameter: 20-100mm



The Equal grades

Elgiloy, Phynox,Co40CrNiMo, R30003, R30008


3J21 Superelastic Alloy Strip Non Magnetic Wear Resistant Thickness 0.05-2.0mm Co40CrNiMo R30003 03J21 Superelastic Alloy Strip Non Magnetic Wear Resistant Thickness 0.05-2.0mm Co40CrNiMo R30003 13J21 Superelastic Alloy Strip Non Magnetic Wear Resistant Thickness 0.05-2.0mm Co40CrNiMo R30003 2



Suzhou Xunshi New Material Co. Ltd- referred as XUNSHI hereafter, is a professional manufacturer of high-performance alloy products. XUNSHI is engaged in supplying high quality and cost-effective Superalloy, Anti-Corrosion Alloy, Precision Alloy, Special Stainless Steel and Magnetostrictive Material to customers worldwide.



· Highly experienced in alloy industry

· Top experts of industry in China

· Advanced technology and process from top famous institutes in China

· Advanced devices through whole production and inspection process

· Strict quality control system

· Company motto: best service, most value

· Smart sales policy


Service Items of XUNSHI

· Non-standard product research and pre-production

· Fabrication of products

· Cutting, splitting for sheets and plates in stock

· Heat treatment (Solution treatment, aging harden treatment, anneal, spring temper, quench etc.)

· Surface finish (peeling, gridding, polishing)

· Logistics service

· Customized packing service (also for exporting)

· Import and export (XUNSHI is certificated)

· Document translation

· Hard-to-find material sourcing


Customers of XUNSHI

Customers of XUNSHI are all over China (Taiwan and Hong Kong included). And we are exporting to USA, Canada, Italy, UK, Poland, Greece, Russia, Turkey, Iran, Israel, South Africa, South Korea, North Korea, India, Argentina, and Brazil and so on. Customers from 30+ countries trust us.


Where is XUNSHI

A- XUNSHI is in Huaqiao, Kunshan, 215332 China, which is very closed to Shanghai.

B- Xunshi is around 80KM from Shanghai Pudong International Airport (PVG).

C- 20KM from Shanghai Hongqiao Airport

D- 20KM from Shanghai Hongqiao Railway Station

E- You can contact XUNSHI sales for a pickup service.