Alloy 800H – TUBES

Download
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) 39.5 min
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) 0.05 – 0.10
S (Sulfur) 0.015 max

 

Features
  • Good creep rupture strength at temperatures above 600°C (1,112°F)
  • Good resistance in oxidizing, nitriding and carburizing conditions
  • Metallurgical stability in long-term use at high temperatures
Physical Properties
Density 8.0 g/cm³ at 20°C

 

Standard

ASTM B407 for seamless pipe and tube

Material

INCOLOY 800H / UNS N08810 / 1.4958

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, %
Hot-finished annealed or

cold-worked annealed

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

Bright annealed / annealed

Package

Plywood case / Wooden case

Heat Treatment

Annealed

Solution heat treatment should be performed at temperatures of 1,150°C (2,102°F).