NILO 36 Alloys

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Other Designations
Fabrication
     Cold working
     Annealing
Applications

Introduction

NILO 36 alloy consists of 36% nickel and is capable of maintaining constant dimensions over the range of normal atmospheric temperature.

This alloy has a low coefficient of expansion from cryogenic temperatures up to about 260°C (500°F). NILO 36 retains good toughness at cryogenic temperatures. NILO 36 alloy is available in the form of round, extruded section, plate, strip, tube and wire.

This datasheet will look into the chemical composition, properties and applications of NILO 36 alloy.

Chemical Composition

The chemical composition of NILO 36 alloy is given in the following table.

Element Content (%)
Iron, Fe 60
Nickel, Ni 35-38
Others Remainder

Physical Properties

The following table discusses the physical properties of NILO 36 alloy.

Properties Metric Imperial
Density 8.11 gm/cm3 0.293 lb/in3

Mechanical Properties

The mechanical properties of NILO 36 alloy after annealing are tabulated below.

Properties Metric Imperial
Tensile strength 490 MPa 71 ksi
Yield strength 240 MPa 34.8 ksi
Modulus of elasticity 140 GPa 20300 ksi

Other Designations

Some of the other designations that are used to denote NILO 36 alloy are as below:

  • UNS K93600
  • UNS K93601
  • ASTN B388
  • B 753
  • DIN1715
  • S.E.W. 385

Fabrication

Cold working

Cold working is not suitable for this alloy as it tends to distort the coefficients of thermal expansion.

Annealing

NILO 36 alloy may be annealed at 830oC (1525°F) for about 30 min, water quenched and then reheated to 300°C (570°F) for 1 hour. This is followed by water quenching and a final reheating to 100°C (212°F) for 48 hours and then air cooled.

Applications

The NILO 36 alloy is used in the following applications:

  • Making of standard length measurements and measuring devices
  • Cryogenic and laser components
  • Bi-metal strip, thermostats
  • Tanks and pipes that transport liquefied gases
  • Aerospace composites
  • Pendulum and precision components.

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