Alloy 4750 is a nickel-iron alloy that combines a high saturation flux density with high magnetic permeability and low core loss. It is a protecting amalgam with high beginning penetrability.
Alloy 4750 is a nickel-iron alloy that combines a high saturation flux density with high magnetic permeability and low core loss. It is a protecting amalgam with high beginning penetrability. It is a flexible material that can be used in different applications like laminated cores for instrument transformers, magnetic shields, and cores for certain electronic and communications devices where its high permeability at low magnetizing forces can greatly increase the device’s efficiency.
Advanced Refractory Metals is a leading supplier of nickel products. We offer competitive pricing and great lead times on all our materials, and we’re capable of supplying custom materials per any specs/drawings you provide us with.
Weight% |
C |
Mn |
Si |
P |
S |
Ni |
Fe |
Nickel Iron 4750 |
0.035 max |
0.8 max |
0.5 max |
0.02 max |
0.008 max |
47.0-50.0 |
Bal |
Properties | Bar |
Initial Permeability (B100) | 6500 |
Max. Permeability | 75000 |
Residual Magnetism (Gausses | 9000 |
Coercive Force, Oersteds from 10,000 Gausses | 0.04/0.07 |
Saturation Induction from H-100 Oersteds, Gausses | 15000 |
Material |
Condition |
Tensile Strength |
Yield Strength |
Elongation (%) |
Reduction of area (%) |
Hardness Rb |
||
ksi |
Mpa |
ksi |
Mpa |
|||||
Alloy 4750 Bar |
As cold drawn |
95 |
655 |
80 |
552 |
25 |
62 |
98 |
Alloy 4750 Bar |
Hydrogen (2150°F) |
70 |
483 |
22 |
152 |
45 |
68 |
62 |
Alloy 4750 Bar |
Hydrogen (1600°F) |
75 |
517 |
23 |
154 |
43 |
65 |
75 |
- Instrument transformers
- Magnetic shields
- Cores for certain electronic and communications devices
All packaging materials are suitable for air, sea and road freight. Vacuum packing is also available for selected alloys. Great care is taken to avoid any damage which might be caused during storage or transportation.