Stainless Steel 316L
Fe 65 · Ni 12 · Cr 17 · Mo 2.5 · Mn 2.0 · Si 1.0
Suited toMost organic systems. The standard material for Indo reactors and vessels.
AvoidHalogen acids and salts; caustics above 100 °C.
Selection guide
Materials of Construction
Five alloys, and what each one is for.
Monel 400
Ni 66 · Cu 31.5 · Fe 1.2
Suited toCaustic solutions, fluorine, hydrogen fluoride and hydrofluoric acid.
AvoidNitric acid and ammonia; hydrochloric and sulfuric acids.
Hastelloy C-276
Ni 53 · Mo 16 · Cr 15.5 · Fe 6.5 · W 4.0 · Co 2.5 · Mn 1
Suited toWet chlorine and strong oxidisers. The broadest general corrosion resistance.
Inconel 600
Ni 76 · Cr 15.5 · Fe 8
Suited toCaustics and chlorides at high temperature and pressure with sulfur present.
AvoidCost often limits it to applications that need it.
Titanium
Commercially pure titanium
Suited toOxidising agents — nitric acid, aqua regia, mixed acids — and chloride ions.
AvoidBurns vigorously in oxygen at elevated temperature and pressure.
The user has to select the appropriate material of construction. Indo engineers will gladly discuss material options, but the final selection rests with the user. Ask an engineer →