Alloy 800 – TUBES

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Applications

INDUSTRIAL

Power Plants, Chemical Industry, Mineral Oil Distillation Plants, Offshore Platforms

Chemical Composition (Nominal) %
Element Percentage (%)
Ni (Nickel) 30.0 – 35.0
Cr (Chromium) 19.0 – 23.0
Fe (Iron) Balance
Mn (Manganese) 1.5 max
Cu (Copper) 0.75 max
Si (Silicon) 1.0 max
Ti (Titanium) 0.15 – 0.60
Al (Aluminum) 0.15 – 0.60
C (Carbon) 0.10 max
S (Sulfur) 0.015 max
Features
  • Excellent corrosion resistance and heat resistance
  • Excellent mechanical properties at both low temperatures and up to 800°C high temperatures
  • Resistant to oxidation, reduction and elevated conditions
  • Excellent processing performance
Physical Properties
Density 8.0 g/cm³ at 20°C
Standard

ASTM B407 for seamless pipe and tube

Material

INCOLOY 800 / UNS N08800 / 1.4876

Mechanical Properties
Condition (Temper) Tensile Strength

min, psi (MPa)

 Yield Strength

min, (0.2% offset)

psi (MPa)

 Elongation

in 2 in. or 50 mm

(or 4 D), min, %
Cold-worked annealed 75,000 (520) 30,000 (205) 30
Hot-finished annealed or

hot-finished

 65,000 (450) 25,000 (170) 30
Surface

Bright annealed / annealed

Package

Plywood case / Wooden case

Heat Treatment

Annealed

The soft annealing should be performed at temperatures of 920 to 980°C (1,688 to 1,796°F), preferably at about 950°C (1,742°F).