n08810 is belongs to austenitic stainless steel.
Incoloy 800H Stainless Steel 00Cr25Ni35AlTi,
Incoloy 800H Overview
Corresponding Grades
UNS N08810 with W.Nr.1.4958
Chemical Composition of Incoloy 800H:
Alloy % Nickel Chromium Iron Carbon Manganese Silicon Copper Sulfur Aluminum Titanium
800H Minimum 30 19 0.05 0.15 0.15
Maximum 35 23 Residual 0.10 1.5 1 0.75 0.015 0.60 0.60
Incoloy 800H Physical Properties:
Density 8.0g/cm3
Melting point 1350-1400°C
Minimum values of mechanical properties of the alloy at room temperature:
Alloy Tensile strength
Rm N/mm2 Yield strength
RP0.2N/mm2 Elongation
A5%
800 500 210 35
800H 450 180 35
Incoloy800H Corrosion Resistance:
800H is resistant to many corrosive media. Its high nickel content gives it good resistance to stress corrosion cracking in aqueous corrosive conditions. The high chromium content gives it better resistance to pitting and crevice corrosion cracking. The alloy has good resistance to nitric and organic acid corrosion, but limited corrosion resistance in sulfuric and hydrochloric acids. There is good corrosion resistance in oxidizing and non-oxidizing salts, except in halides where pitting corrosion is possible. It also has good corrosion resistance in water, vapors, and mixtures of steam, air, and carbon dioxide.
Incoloy800H application range application areas are:
1. Nitric acid condenser - resistance to nitric acid corrosion
2. Steam heating tube - very good mechanical properties
3. Heating element tubes - very good mechanical properties
For applications up to 500°C, the alloy is supplied in the annealed state.