| Sign In | Join Free | My wneducation.com | 
 | 
Place of Origin : Suzhou, China
Brand Name : AIWEN
Certification : SGS, BV, TUV
Model Number : 1J79
Technique : Cold Rolled
Standard : GB
Thickness : 0.1-6mm
Width : 5-500mm
Length : In coil
Application : Various
Product scope : Wire, strip, bar, tube
MOQ : 100kg
Price : Available per request
Packaging Details : Carton, wooden box
Delivery Time : 30 days
Payment Terms : T/T
Supply Ability : 10MT/month
Grade : 1J79
1J79 Alloy 4 soft magnetic nickel-iron alloy permalloy
General Introduction
Permalloy is a nickel-iron magnetic alloy, with about 20% iron and 80% nickel content. it is notable for its very high magnetic permeability, which makes it useful as a magnetic core material in electrical and electronic equipment, and also in magnetic shielding to block magnetic fields. Commercial permalloy alloys typically have relative permeability of around 100,000, compared to several thousand for ordinary steel.
In addition to high permeability, its other magnetic properties are low coercivity, near zero magnetostriction, and significant anisotropic magnetoresistance. The low magnetostriction is critical for industrial applications, allowing it to be used in thin films where variable stresses would otherwise cause a ruinously large variation in magnetic properties. Permalloy's electrical resistivity can vary as much as 5% depending on the strength and the direction of an applied magnetic field. Permalloys typically have the face centered cubic crystal structure with a lattice constant of approximately 0.355 nm in the vicinity of a nickel concentration of 80%. A disadvantage of Permalloy is that it is not very ductile or workable, so applications requiring elaborate shapes, such as magnetic shields, are made of other high permeability alloys such as mu metal. Permalloy is used in transformer laminations and magnetic recording heads.
Typical applications of 1J79:
Transformers, current transformers, magnetic amplifiers, chokes core and magnetic shielding
Standard Composition of Permalloy 1J79
Average coefficient of linear expansion of 1J79
Mechanical property of 1J79
Prouct type
Wire, strip, bar...
|   | 
| 1J79 soft magnetic nickel-iron alloy permalloy Images | 
 NiCr80/20 /UNS N06003 /2.4869 Heating Conductor Alloy
                                                                                    
                        
                        
                        
                                                            NiCr80/20 /UNS N06003 /2.4869 Heating Conductor Alloy
                                                    
                        
                     Karma electric heating alloy wire 6J22 China grade
                                                                                    
                        
                        
                        
                                                            Karma electric heating alloy wire 6J22 China grade
                                                    
                        
                     Magnifier 7904 soft magnetic alloy, Permalloy 80 wire for shielding and
                                                                                    
                        
                        
                        
                                                            Magnifier 7904 soft magnetic alloy, Permalloy 80 wire for shielding and
                                                    
                        
                     A resistance heating wire
                                                                                    
                        
                        
                        
                                                            A resistance heating wire
                                                    
                        
                     Hiperco27 High Saturation Magnetic Alloy strip factory direct sales
                                                                                    
                        
                        
                        
                                                            Hiperco27 High Saturation Magnetic Alloy strip factory direct sales
                                                    
                        
                     Permalloy 80 Wire, rod, bar, tube, strip, plate Magnifier 7904 soft magnetic
                                                                                    
                        
                        
                        
                                                            Permalloy 80 Wire, rod, bar, tube, strip, plate Magnifier 7904 soft magnetic
                                                    
                        
                     Fe-Co-Mo Magnetic Hysteresis Alloy Bar with size of OD 20-100mm
                                                                                    
                        
                        
                        
                                                            Fe-Co-Mo Magnetic Hysteresis Alloy Bar with size of OD 20-100mm
                                                    
                        
                     AMS 5844 /UNS R30035 nickel-cobalt based alloy strip
                                                                                    
                        
                        
                        
                                                            AMS 5844 /UNS R30035 nickel-cobalt based alloy strip
                                                    
                        
                     INVAR 36 wire UNS K93600 UNS K93603 EN 1.3912
                                                                                    
                        
                        
                        
                                                            INVAR 36 wire UNS K93600 UNS K93603 EN 1.3912
                                                    
                        
                     ASTM F15 alloy/ Kovar K94610 capillary for glass and ceramic sealing
                                                                                    
                        
                        
                        
                                                            ASTM F15 alloy/ Kovar K94610 capillary for glass and ceramic sealing