Check Mark World Wide Logo Check Mark World Wide, Inc.


HOME

Magnetic Materials:
UNDER CONSTRUCTION
LINKS TO THE PAGES FOR THE  MAGNETIC MATERIALS  ARE UNDER CONSTRUCTION

    #81 Alloy (also known as 17% Co Alloy, Simonds #81, and Guterl #81  )
  • Available in various diameters.
  • Hot rolled, annealed, & straightened.
  • Centerless grinding and Machining to size available.

Nominal Chemistry:

C
Si
Mn
Co
Cr
W
Fe
0.75
0.25
0.30
18.50
3.75
5.00
Balance


Average Magnetic Values, Physical Properties, & Optimum Heat Treatment:

Residual Flux Density (Gauss)
9700 Br
Coercive Force Oersteds
81 Hc
Maximum Energy Product (X 10-6)
0.382 BH Max.
Rockwell C Hardness (Annealed)
15-25
Rockwell C Hardness (Hardened)
60-65
Hardening Temperature
_________ ° F
Time at Temperature
5-15 minutes
Quench Type
Oil
Stabilizing Temper
Optional


Graph Links:

#81 Co Alloy Hysteresis Energy Loss vs. Magnetizing Force

#81 Co Alloy Demagnetization Curve

#81 Co Alloy Typical Hysteresis Loop Drawn with Various Magnetizing Forces

#81 Co Alloy Tempering Curve

#81 Co Alloy Hysteresis Energy Loss vs. Maximum Flux Density



Contact Information

Telephone          716-625-8777

FAX                   716-625-4478

Postal address:

     Check Mark World Wide, Inc. 
     6255 Campbell Blvd.
     Lockport, NY  14094   USA

Electronic mail:

     General Information: Magnets@checkmarkww.com 

     Sales: Mark@checkmarkww.com


 
Copyright 2002-03 Check Mark World Wide, Inc.
Email: Mark@checkmarkww.com
Phone: 716-625-8777