Design Features

Raw Materials Bar Stock
All Parr raw materials are carefully identified throughout the manufacturing process for traceability – as required by ASME and other codes.


Alloy Selection

Parr Oxygen Combustion Vessels are made of Alloy 20 which is richer in chromium and contains three times as much nickel as Series 300 Stainless Steels. Alternatively, Alloy G-30 is offered for chloride service as the metal contains cobalt and molybdenum to resist the corrosive effect of the chloride ion.