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Super-Invar Expansion Precision Alloy (4J32)

Basic Info

Model No.:  4J32

Product Description

Model NO.: 4J32 Material: Fe-Ni-Co Trademark: ToLand Alloy Specification: customize HS Code: 7505220000 Product Type: Wire Carbon Content: Low Carbon Transport Package: Spool, Coil, Woven Bags, Wooden Case Origin: Jiangsu Danyang Product description:

    4J32 expansion alloy, also known as super-invar alloy, has been the metal of choice for low expansion applications for years.
    "Super-Invar" (31% NI-5% Co-Balance Iron) has found some favor because it has an almost zero coefficient of thermal expansion over a limited temperature range. The useful range of "Super Invar" is limited between -32º Cto + 275º C. Because the material begins to transform from Austenite to Martensite at temperature below-32º F.


Melting Range: 1430~1450º C
Density: 8.10g/cm³
Curie Temperature: 220º C


Super-Invar Expansion Precision Alloy (4J32)
Typical expansion character(10 -6 / ºC )
Temperature range 20~60 20~50 20~100 20~150 20~200 20~250 20~300 20~400 20~500 20~600
Expansion coefficient -0.90 0.5 0.9 1.4 2.0 3.2 4.9 7.7 9.6 10.8



 
Varieties                     Steel type   
 
Specifications
mm
Precision
alloy
Resistance Alloys for electrical heating Super alloy Welding Wire Corrosion resistant
alloy
Rods hot rolling rods Φ8~38mm available   available   available
Cold-drawn rods ≤50mm available   available   available
Forged rods Φ38~350mm available   available   available
Wires Round wires Φ0.3~8mm available available available available available
Non-circle wires Negotiation available   available   available
Strips Cold rolling 0.15~4×200mm available available available   available
Hot rolling 4~22×200mm available available available   available
Plates Cold rolling 0.5~4×1000×2000mm available   available   available
Hot rolling 4~22×1000×2000mm available   available   available
tubes Φ4~63×0.5~5mm          available   available
Executive standard: GB, GJB, HB, YB, ASTM, AMSE, negotiation and so on.

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Product Categories : Precision Alloy