Nickel 200 Alloy (UNS N02200)

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Fabrication and Heat Treatment
Other Designations
Applications

Introduction

Nickel 200 is a solid solution strengthened, commercially pure wrought materials with excellent mechanical properties and resistance to corrosion. It also has exceptional resistance to caustic alkalis at different concentrations and temperatures. However, the corrosion resistance is better in de-aerated acid. The alloy has low gas content and vapor pressure, and high thermal and electrical conductivities.

The following section will discuss in detail about Nickel 200 alloy.

Chemical Composition

The chemical composition Nickel 200 alloy is outlined in the following table.

Element Content (%)
Nickel, Ni ≥ 99
Iron, Fe ≤ 0.40
Manganese, Mn ≤ 0.35
Silicon, Si ≤ 0.35
Copper, Cu ≤ 0.25
Carbon, C ≤ 0.15
Sulfur, S ≤ 0.010

Physical Properties

The following table shows the physical properties of Nickel 200 alloy.

Properties Metric Imperial
Density 8.89 g/cm3 0.321 lb/in3
Melting point 1435-1446°C 2615-2635°F

Mechanical Properties

The mechanical properties of Nickel 200 alloy are displayed in the following table.

Properties Metric Imperial
Tensile strength (annealed) 462 MPa 67000 psi
Yield strength (annealed) 148 MPa 21500 psi
Elongation at break (annealed prior to test) 45% 45%

Thermal Properties

The thermal properties of Nickel 200 alloy are given in the following table

Properties Metric Imperial
Thermal expansion co-efficient (@20-100°C/68-212°F) 13.3 µm/m°C 7.39 µin/in°F
Thermal conductivity 70.2 W/mK 487 BTU.in/hrft².°F

Fabrication and Heat Treatment

Nickel 200 alloy can be shaped through all hot working and cold working practices. The alloy can be hot worked between 649°C (1200°F) and 1232°C (2250°F), with heavy forming carried out at temperatures above 871°C (1600°F). Annealing is performed at temperature between 704°C (1300°F) and 871°C (1600°F).

Other Designations

Other designations that are equivalent to nickel 200 alloy include the following:

  • ASME SB-160 - SB-163
  • DIN 17740
  • DIN 17750-17754
  • BS 3072-3076
  • ASTM B 160 - B 163
  • ASTM B 725
  • ASTM B 730

Applications

The following are the list of applications of nickel 200 alloy:

  • Synthetic fibers
  • Food processing equipment
  • Drums to transport chemicals
  • Rocket motors
  • Piping and equipment used in conjunction with alkalis
  • Handling of foods
  • Aerospace and missile components

Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
Submit