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Iron Nickel Low Expansion Alloy 4J36 Strip Wire YB/T 5241-1993 Curie Point 230°C

Place of Origin China
Brand Name XUNSHI
Certification ISO9001
Model Number 4J36
Minimum Order Quantity 50kg
Price Negotiable
Packaging Details Plywood case
Delivery Time 30-35 days
Payment Terms T/T
Supply Ability 5000kg per week

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Product Details
Equal Grade Invar36, Nilo36 Forms Of Supply Wire, Bar, Forging, Strip, Plate, Pipe, Tube, Capillary
Sepc YB/T 5241-1993 Curie Point 230°C
Product Name Low Expansion Alloy Certification ISO9001
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Product Description

4J36 Low Expansion Iron-Nickel Alloy Strip Wire YB/T 5241-1993



4J36 is well known as Invar 36 worldwide. It is a low expansion alloy with Curie point of around 230°C. When the temperature is below this point, 4J36 is magnetic and the expansion rate is very low. And when the temperature goes above this point, it becomes non-magnetic and the expansion rate goes bigger. 4J36  particularly useful in applications where minimum thermal expansion and high dimensional stability is required, such as in precision instruments like optoelectronic devices, optical and laser benches, electronics, and other kinds of scientific


Chemical composition

Element C P S Si Mn Ni Fe
Weight(%) 0.05 max 0.020 max 0.020 max 0.03 max 0.2~0.6 35.0~37.0 Rem



  •  Low expansion rate up to 500°F
  •  Readily weldable



  •  Cathode Ray Tubes
  •  Telecommunications
  •  Aeronautical and aerospace engineering
  •  Cryogenic engineering (liquefied natural gas tankers)