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Corrosion Resistance Superelastic Alloy W.Nr 2.4711 AFNOR K13C20N16Fe15D7 Wire For Spring

Place of Origin China
Brand Name XUNSHI
Certification ISO 9001:2015
Model Number W.Nr 2.4711
Minimum Order Quantity 20kg
Price Negotiable
Packaging Details Plywood box
Delivery Time 45-50 days
Payment Terms T/T, Western Union
Supply Ability 500kg per week

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Product Details
Equal Grades AFNOR K13C20N16Fe15D7, Elgiloy, Phynox, 3J21, R30003 Diameter Range 0.2-3.50mm
Package Plywood Box Spec ASTM F1058
Product Name Superelastic Alloy
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Product Description

W.Nr 2.4711 AFNOR K13C20N16Fe15D7 Super Elastic Alloy Wire for Spring


W.Nr 2.4711 is equal to Elgiloy(40Co-20Cr-16Fe-15Ni-7Mo).


W.Nr 2.4711 is widely used in applications where excellent corrosion resistance, mechanical properties and long service life are required. Such as manufacture of watches, and is applied in aerospace, oil, natural gas, medical and clinical equipment and other high-tech fields and key parts. 

XUNSHI is now working with a luxury watch manufacturer who need W.Nr 2.4711 cold rolled strip of thickness 0.04mm and width 0.8mm. And that's where our strength is. 

XUNSHI is among the few suppliers in China who are able to produce this thickness of W.Nr.2.4711 strip. And the mechanical property could meet the requirement of AMS 5876 D.


Meanwhile, W.Nr 2.4711 is a good choice for humen body implants. 

Even no known surgical implant material has ever been shown to be completely free of adverse reactions in
the human body. However, long-term clinical experience of the use of W.Nr 2.4711 has shown that an acceptable level of biological response can be expected when it is used in appropriate conditions.


W.Nr 2.4711 meet the requirement of ISO 5832-7.


Chemical composition(%, wt)

  • C: 0.15 max
  • Mn: 1.0-2.0
  • Si: 1.2
  • P: 0.015
  • S: 0.015
  • Co: 39.-42.0
  • Cr: 18.5-21.5
  • Ni:15.0-18.0
  • Mo:6.5-7.5
  • Be: 0.001 max
  • Fe: balance


  • Exceptional resistance to corrosion, stress corrosion cracking and hydrogen embrtittlement.
  • Good fatigue stregth.
  • The absence of aging in service.
  • The absence of magnetism.
  • Ability to be used over a wide range of temperatures, from liquid helium to about 500°C.
  • Perfect passivity in contact with human tissues.
  • The possibility of increasing the strength of parts by age hardening after forming, leading to strength levels unattainable with other materials.
  • The absence of brittleness at low temperatures (no transition temperature).
  • A maximum service temperature about 100°C higher than for stainless steels.
  • A corrosion resistance vastly superior to that of molybdenum containing stainless steels.
  • A very high yield strength that combined with a high elastic modulus in both tension and torsion, enables the storage and rapid release of large amounts of elastic energy.



  • Aeronautical and aerospace equipment
  • Automotive ABS systems
  • Automotive injection systems
  • Electrical and electronic apparatus
  • Equipment for the chemicals and oil & gas industries
  • Flexible coupling
  • Pacemaker electrodes
  • Printer springs
  • Prostheses for osteosynthesis
  • Shaped springs (helical, etc…)
  • Surgical implants and medical instruments
  • Various diaphragms

Forms of supply

  • Bar
  • Cold Rolled strip
  • Drawn and flat wire
  • Heavy plate
  • Wire rod


Corrosion Resistance Superelastic Alloy W.Nr 2.4711 AFNOR K13C20N16Fe15D7 Wire For Spring 0Corrosion Resistance Superelastic Alloy W.Nr 2.4711 AFNOR K13C20N16Fe15D7 Wire For Spring 1Corrosion Resistance Superelastic Alloy W.Nr 2.4711 AFNOR K13C20N16Fe15D7 Wire For Spring 2Corrosion Resistance Superelastic Alloy W.Nr 2.4711 AFNOR K13C20N16Fe15D7 Wire For Spring 3



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.