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Corrosion Resistant INVAR36 4J36 Low Expansion Alloy

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
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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4J36 Low Expansion Alloy


INVAR36 Low Expansion Alloy


Corrosion Resistant INVAR 36 Alloy

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Product Description


INVAR36(4J36)Low Expansion Alloy


4J36 is well known as Invar36 worldwide. It is a louw 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


Similar model:

Invar36, NILO 36, Pernifer 36, 4J36, EN 1.3912, UNS K93600, UNS K93603, Werkstoff 1.3912

Line expansion coefficient:



Physical performance:



Curie temperature:230°C



  • Low expansion rate up to 500°F
  • Readily weldable
  • Corrosion resistance in the atmosphere, fresh water and sea water
  • Good hot and cold processing performance
  • Good abrasive performance


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

Forms of supply:

Wire, bar, forging, strip, plate, pipe, tube, capillary

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