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China, Chinese Low Thermal Expansion Coefficient Invar 36 Bar (Ni36Fe, Fe-36Ni, NiInvar)1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Non ferrous Metal ProductsOther Non ferrous Metal ProductsFe-36NiNiInvar)InvarInvar 36
Hangzhou Ualloy Material Co., Ltd.
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Product Description Low thermal expansion coefficient Invar 36 Bar(Ni36Fe,Fe-36Ni,NiInvar)(Common Name: Invar, FeNi36, Invar Standard, Vacodil36,AFNOR NF A54-301,ASTM F 1684-06,EN 1.3912UNS K93600, UNS K93603,Werkstoff 1.3912)4J36 (Invar), also known generically as FeNi36 (64FeNi in the US), is a nickel-iron alloy notable for its uniquely low coefficient of thermal expansion (CTE or α). 4J36 (Invar) is used where high dimensional stability is required, such as precision instruments, clocks, seismic creep gauges, television shadow-mask frames, valves in motors, and antimagnetic watches. In land surveying, when first-order (high-precision) elevation leveling is to be performed, the Level staff (leveling rod) used is made of Invar, instead of wood, fiberglass, or other metals. Invar struts were used in some pistons to limit their thermal expansion inside their cylinders.Normal composition%Ni35~37.0FeBal.Co-Si≤0.3Mo-Cu-Cr-Mn0.2~0.6C≤0.05P≤0.02S≤0.02 Typical Physical propertiesDensity (g/cm3)8.1Electrical resistivity at 20oC(ohm mm2/m)0.78Temperature factor of resistivity(20oC~200oC)X10-6/oC 3.7~3.9Thermal conductivity, λ/ W/(m*oC)11Curie point Tc/ oC230Elastic Modulus, E/ Gpa144Coefficient of expansionθ/oCα1/10-6oC-1θ/oCα1/10-6oC-120~-601.820~2503.620~-401.820~3005.220~-201.620~3506.520~-01.620~4007.820~501.120~4508.920~1001.420~5009.720~1501.920~55010.420~2002.520~60011.0 Typical Mechanical propertiesTensile StrengthElongationMpa%6411468997318Temperature factor of resistivityTemperature range, oC20~5020~10020~20020~30020~400aR/ 103 *oC1.81.71.41.21.0 The heat treatment processAnnealing for stress reliefHeated to 530~550oC and hold 1~2 h. Cold downannealingIn order to eliminate hardening, which be bring out in cold-rolled, cold drawing process. Annealing needs heated to 830~880oC in vacuum,hold 30 min.The stabilization processIn protective media and heated to 830 oC, hold 20min. ~ 1h, quenchDue to the stress generated by quenching, heated to 315oC,hold 1~4h.PrecautionsCan not be hardened by heat treatmentSurface treatment can be sandblasting, polishing or pickling.Alloy can be used 25% hydrochloric acid pickling solution at 70 oC to clear oxidized surfaceStyle of supplyAlloys NameTypeDimension 4J36WireD= 0.1~8mm 4J36StripW= 5~250mmT= 0.1mm4J36FoilW= 10~100mmT= 0.01~0.14J36BarDia= 8~100mmL= 50~1000 Package:All the bar will be packed into wooden case.
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