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1j76 Soft Magnetic Alloy Rod /Wire Rod /Pipe1
Non-ferrous Metal ProductsSoft Magnetic Alloy RodPermalloy
Huona (Shanghai) New Material Co., Ltd.
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Product Description 1j76 Soft Magnetic Alloy Rod /Wire Rod /PipeProduct Description:1J76 (Soft magnetic alloy)1J76 is a nickel-iron magnetic alloy, with about 80% nickel and 20% iron content. Invented in 1914 by physicist Gustav Elmen at Bell Telephone Laboratories, 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.1J76 widely used in radio-electronic industry, precision instruments, remote control and automatic control system. Normal composition%Ni75~76.5FeBal.Mn0.3~0.6Si0.15~0.3Mo-Cu4.8~5.2Cr1.8~2.2 C≤0.03P≤0.02S≤0.02 Typical Mechanical propertiesYield strengthTensile StrengthElongationMpaMpa%98010303~50 Typical Physical propertiesDensity (g/cm3)8.6Electrical resistivity at 20oC(Om*mm2/m)0.55Coefficient of linear expansion(20oC~200oC)X10-6/oC10.3~11.5Saturation magnetostriction coefficient λθ/ 10-62.4Curie point Tc/ oC400 The magnetic properties of alloys with high permeability in weak fields1J76Initial permeabilityMaximum permeabilityCoercivitySaturation magnetic induction intensityСold-rolled strip/ sheet.Thickness, mmμ0.08/ (mH/m)μm/ (mH/m)Hc/ (A/m)BS/ T≥≤0.01 mm17.587.55.6 0.750.1~0.19 mm25.0162.52.40.2~0.34 mm28.0225.01.60.35~1.0 mm30.0250.01.61.1~2.5 mm27.5225.01.62.6~3.0 mm26.3187.52.0cold drawn wire 0.1 mm6.3506.4Bar 8-100 mm251003.2 Mode of heat treatment 1J76Annealing mediaVacuum with a residual pressure not higher than 0.1Pa, hydrogen with a dew point of not higher than minus 40 oC.The heating temperature and rate1100~1150oCHolding time3~6Cooling rateWith 100 ~ 200 oC/ h cooled to 600 oC, rapidly cooled to 300oC Style of supplyAlloys NameTypeDimension 1J76WireD= 0.1~8mm 1J76StripW= 8~390mmT= 0.3mm1J76FoilW= 10~100mmT= 0.01~0.11J76BarDia= 8~100mmL= 50~1000 FAQ1. What's the minimum quantity customer can order?If we have your size in stock, we can provide any quantity you want.If we do not have, for spool wire, we can produce 1 spool, about 2-3kg. For coil wire, 25kg.2. How can you pay for small sample amount?We have Western union account, wire transfer for sample amount also ok.3. Customer do not have express account. How will us arrange the delivery for sample order?Just need to provide your address information, we will check the express cost, you can arrange the express cost together with sample value.4. What's our payment terms?We can accept LC T/T payment terms, it also depending on delivery and total amount. Let's talk more in details after getting your detailed requirements.5. Do you provide free samples?If you want several meters and we have stock of your size, we can provide, customer need to bear the International express cost.6. What's our working time?We will give you reply through email/phone Online contact tool within 24 hours. No matter working day or holidays.
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