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NILO 4J36 UNS K93600 & K93601/W. Nr.1.3912 Ultra-low expansion iron-nickel alloy

  • Place of Origin Jiangsu,China
  • Model Number NILO 4J36
  • Trade Names UNS K93600 & K93601/W. Nr.1.3912, invar 36, 4J36
  • Dimensions Customized Size
  • Delivery Conditions Grinding, Polished. Bright.
  • Avaliable Shapes Bar,Tube,Pipe,Wire,Foil,Strip,Ring,Fastener.Customized
  • MOQ 50~200 (KG)
  • Packaging Details Wooden Case, or as per Client's request
  • Payment Terms L/C, T/T, Western Union, MoneyGram
  • Trade Terms FOB, CIF, DUP, EXW
  • Delivery Time 7~40 days

Overview


NILO alloy 36 (UNS K93600 & K93601/W. Nr.1.3912), a binary nickel-iron alloy containing 36%nickel. Its very low room-temperature thermal expansion coefficient makes it useful for tooling for aerospace composites, standards of length, measuring tapes and gauges, precision components, and pendulum and thermostat rods. It is also used as the low expansion component in bi-metal strip, in cryogenic engineering, and for laser components.



Limiting Chemical Composition, %,of NILO alloy 36


Nickel.....................................................................................................................................................................................................................36.00

Iron.........................................................................................................................................................................................................................64.00



Physical Constants


Density

lb/in^3.......................................................................................................................0.293

g/cm^3.......................................................................................................................8.11

Melting Range

°F...............................................................................................................................2605

°C...............................................................................................................................1430

Inflection Point

°F..................................................................................................................................430

°C.................................................................................................................................220

Thermal Conductivity

at 20°C (68°F)............................................................................................................69.3



Tensile Properties


Typical Mechanical Properties of NILO alloy 36

Temperature

Tenslle Strength

Yield Strength

(0.2%Offset)


Elongation

on 50 mm

(2 inch)%

Reduction of

Area %

F

MPa

ksi

MPa

ksi

20

68

490

71.0

240

35.0

42

70

100

212

430

62.0

180

26.0

43

70

200

392

430

62.0

110

16.0

45

70

300

572

410

59.0

93

13.0

48

70

400

752

350

51.0

93

13.0

53

70

500

932

290

42.0

93

13.0

59

69

600

1112

210

30.0

77

11.0

68

67



Corrosion Resistance


NILO alloy 36 has excellent corrosion resistance. In common acids, alkalis and salt water, it has good stability. Alloy 36 remains corrosion resistant in air when dry at room temperature. However, under adverse conditions, such as humid environments, corrosion may occur on the surface of the material.



Thermal Treatments


For most uses of NILO alloy 36, where the alloy is to be subjected to a wide range of temperatures, fully annealed material is recommended. A suitable annealing temperature is 850-900°C (1560-1650°F), the time depending on the form and dimensions. Slow cooling is preferred.

Where the highest dimensional stability with minimum expansion is required for devices used within the normal range of ambient temperatures, the following heat treatment is recommended.

Heat to 830°C (1525°F) for 30 minutes/water quench plus re-heat to 300°C (570°F) for 1 hour/air cool plus re-heat to 100°C (212°F) for 48 hours/air cool.

After this treatment the alloy should be fully stable at temperatures up to 100°C (212°F). Protective atmospheres should be used when preheating or annealing.



Available Forms


We provide you with a variety of product forms, including but not limited to


● Bar & Rod

● Pipe & Tube

● Coil & Strip

● Plate & Sheet & Circle

● Wire & Welding

● Fitting (Flange, Elbow, Tee...)

● Customize

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