• Suzhou Xunshi New Material Co., Ltd
    Daniel Weree
    Have been business relationship for 3 years, great partner for Nickel Cobalt Alloy!
  • Suzhou Xunshi New Material Co., Ltd
    Carolina Fasio
    On-time delivery. And support is good and fast.
Contact Person : Allen Sun
Phone Number : +86 18112628895
WhatsApp : +8618112628895

Permenent Magnetic Cobalt Iron Alloy 2J4 Cold Rolled Strip 0.05mm 1.0mm

Place of Origin China
Brand Name XUNSHI
Certification ISO 9001:2015
Model Number 2J4
Minimum Order Quantity 20kg
Price Negotiable
Packaging Details Plywood case
Delivery Time 45-60 days
Payment Terms T/T, Western Union
Supply Ability 300 kg per week

Contact me for free samples and coupons.

WhatsApp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Equal Grade P6(USA) Form Of Supply Cold Rolled Strip
Type FeCoVNi Thickness 0.05-1.0mm
Product Name Permanent Magnet Alloy Certification ISO 9001:2015
High Light

Cold Rolled Strip Cobalt Iron Alloy


1.0mm Thickness Cobalt Iron Alloy


Iron Cobalt Permanent Magnet Alloy

Leave a Message
Product Description

Iron-Cobalt Permenent Magnetic Alloy 2J4 Cold Rolled Strip 0.05-1.0mm


2J4 belongs to Iron-Cobalt Permenent Magnetic Alloy. This alloy is suitable for making high efficiency hysteresis motor rotor with high operating temperature, and this alloy does not cause reduced magnetic performance in the range of + 150~ -140 ℃. In all kinds of the Magnetic Alloys, 2J4 is the one with a long time application time and a large dosage. We can supply cold rolled strip of 2J4 alloy with mature process and stable quality in thickness range 0.05-1.0mm.


Density of 2J4:8.2g/cm3


Chemical composition 2J4 (%, weight)

C ≤0.12
P ≤0.025
S ≤0.02
Si ≤0.70
Mn ≤0.70
Co 44.0~46.0
V 3.5~4.5
Ni 5.30~6.70
Fe Balance


Machenical properties

  • Good plasticity before tempering
  • General Welding performance
  • Good magnetic stability
  • Corrosion resistance properties
  • Good forming performance after continuous rolling



GB/T 14988-1994


The available forms

Cold rolled strip in thickness range 0.05-1.0mm.

Other thickness also availble per request.



Magnetic motor rotor, Magnetic brake

Permenent Magnetic Cobalt Iron Alloy 2J4 Cold Rolled Strip 0.05mm 1.0mm 0

Permenent Magnetic Cobalt Iron Alloy 2J4 Cold Rolled Strip 0.05mm 1.0mm 1

Permenent Magnetic Cobalt Iron Alloy 2J4 Cold Rolled Strip 0.05mm 1.0mm 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.