Inconel 600

Inconel 600 | UNS N06600 | W. Nr 2.4816 | AMS 5540 | ASTM B166 | MIL N 22986 | QQ W 390 | NA14 | DIN 2.4816

INCONEL (nickel-chromium-iron) alloy 600 (UNS N06600/W.Nr. 2.4816) is a standard engineering material for applications which require resistance to corrosion and heat. The alloy also has excellent mechanical properties and presents the desirable combination of high strength and good workability.

The limiting chemical composition of INCONEL alloy 600 is shown. The high nickel content gives the alloy resistance to corrosion by many organic and inorganic compounds and also makes it virtually immune to chloride-ion stress-corrosion cracking. Chromium confers resistance to sulfur compounds and also provides resistance to oxidizing conditions at high temperatures or in corrosive solutions. The alloy is not precipitation hardenable; it is hardened and strengthened only by cold work.

The versatility of INCONEL alloy 600 has led to its use in a variety of applications involving temperatures from cryogenic to above 2000°F (1095°C).

The alloy is used extensively in the chemical industry for its strength and corrosion resistance. Applications include heaters, stills, bubble towers and condensers for processing of fatty acids; evaporator tubes, tube sheets and flaking trays for the manufacture of sodium sulfide; and equipment for handling abietic acid in the manufacture of paper pulp.

The alloy’s strength and oxidation resistance at high temperatures make it useful for many applications in the heat-treating industry. It is used for retorts, muffles, roller hearths and other furnace components and for heat-treating baskets and trays.

In the aeronautical field, INCONEL alloy 600 is used for a variety of engine and airframe components which must withstand high temperatures. Examples are lockwire, exhaust liners and turbine seals.

INCONEL alloy 600 is used in the electronic field for such parts as cathode-ray tube spiders, thyratron grids, tube support members and springs. The alloy is a standard material of construction for nuclear reactors. It has excellent resistance to corrosion by high-purity water, and no indication of chloride-ion stress-corrosion cracking in reactor water systems has been detected. For nuclear applications, the alloy is produced to exacting specifications and is designated INCONEL alloy 600T.

Chemical Composition

  • Nickel (plus Cobalt)…………………………………………….72.0 min.
  • Chromium…………………………………………………………14.0-17.0
  • Iron ………………………………………………………………..6.00-10.00
  • Carbon …………………………………………………………….0.15 max.
  • Manganese……………………………………………………….1.00max
  • Sulfur……………………………………………………………..0.015 max.
  • Silicon……………………………………………………………..0.50max.
  • Copper…………………………………………………………….0.50 max

Physical Constants and Thermal Properties

Some physical constants of INCONEL alloy 600 are given. Thermal properties at low and high temperatures are listed.

The modulus of elasticity in tension at various temperatures is shown.

Measurements of total hemispherical emissivity and total normal emissivity are shown.

The values for physical constants and thermal properties reported here are typical but are not suitable for specification use.

Physical Constants

  • Density,lb/in3………………………………………………………….0.306
  •             Mg/m3 ………………………………………………………….8.47
  • Melting Range, °F……………………………………………………..2470-2575
  •                              °C …………………………………………………….1354-1413
  • Specific Heat, Btu/lb-°F……………………………………………..0.106
  •                               J/kg-°C……………………………………………..444
  • Electrical Resistivity, ohm-circ mil/ft…………………………..620
  •                                           μΩ-m……………………………………….1.03
  • Curie Temperature, °F ……………………………………………….-192
  •                                      °C………………………………………………..-124
  • Permeability at 200 oersted (15.9 kA/m) ………………………1.010

Mechanical Properties

As indicated by the nominal mechanical properties listed, a broad range of strength and hardness is obtainable with INCONEL alloy 600, depending on form and condition. In the annealed condition, the alloy exhibits moderate yield strengths of 25,000 to 50,000 psi (172 to 345 MPa). Yield strengths in that range, combined with elongations of 55 to 35%, permit the alloy to be fabricated with little difficulty. Heavily coldworked material, however, can have tensile strengths as high as 220,000 psi (1517 MPa).

Values for properties reported in this publication are typical but are not suitable for specification purposes unless stated as minimum or maximum.

Specifications

UNS N06600
W. Nr 2.4816
DIN 2.4816
AMS 5540 Sheet, Strip and Plate
AMS 5665 Bar, Forgings and Rings
AMS 5580 Seamless Tubing
ASTM B168 Plate
ASTM B166 Bar
ASTM B167 Seamless Pipe
ASTM B163 Seamless Tube
ASTM B517 Weld Pipe
ASTM B516 Weld Tube
ASTM B564 Forging
MIL N 22986, MIL N 23338, MIL N 6710, MIL N 15721, MIL N 22987, MIL N 23229, MIL N 6840
QQ W 390
NA14
Inconel 600 (Trademark)

© FountainHead Alloys 1996