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WL Permalloy 80
Permalloy was primarily developed in the early 20th century for inductive compensation of telegraph cables. Permalloy is known for its very high magnetic permeability, which makes it useful as a magnetic core material in electrical and electronic equipment. The other key magnetic properties it possesses are near zero magnetostriction, low coercivity, and anisotropic magnetoresistance.
precision alloy 1J79 widely used in radio-electronic industry, precision instruments, remote control and automatic control system
Equivalent : ASTM A753 ALLOY 4 and MIL N-14411 Comp 1.
|
GB |
JIS |
Trade mark |
UNS |
DIN |
NF |
rOCT |
BS |
|
1J79 |
|
Supermalloy |
N14080 |
Ultraperm 10 Ultraperm 200 Ultraperm 300 Ultraperm F80 Ultraperm 200TK Ultra perm Z |
Permimphy 2 |
79H |
Supermumetal SM150, 250 |
|
% |
Ni |
Si |
Fe |
C |
Mn |
Mo |
P |
S |
|
Min |
78.5 |
0.3 |
Rest |
|
0.6 |
3.8 |
|
|
|
Max |
80 |
0.5 |
0.03 |
1.1 |
4.1 |
0.02 |
0.02 |
Initial permeability μ0 (mH/m): ≥40
Maximum permeability μm (mH/m): ≥310
Coercivity Hc (A/m): ≤2.0
Saturation magnetic induction Bs (T): 0.73
Super alloy Permalloy 80 is a high magnetic permeability alloy of nickel and iron.
|
Grade |
Density |
melting point |
Tensile strength,MPa |
Yield strength,MPa |
Elongation,% |
|
1J79 |
8.7g/cm3 |
1454°C |
682 |
338 |
32 |
Infrastructure such as bridges, trestles, water towers, wind turbines, pipelines
Marine and offshore applications, such as bridges, hulls for ships and tankers, offshore wind turbines
Corrosion Under Insulation (CUI)
Boilers and Digesters
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