Is there a corrosion concern for running pure gaseous oxygen in a carbon steel line (the oxygen will not have any moisture or other contaminants)? (I have read various papers saying this would be possible, but they seem to be theoretical, rather than practical?) If there is a corrosion concern, with the above, what purity O2 could I use a carbon steel line (product will still be dry and contaminant free)? (Background: I have an existing carbon steel pipeline I am trying to put gaseous O2 down, cleaning and inspection of the pipeline will be done if this is possible. I am really trying to avoid running a smaller stainless steel or HDPE line through this existing pipeline) Thanks for any input.

Don Henry Dhendrix has rightly cautioned to inform about possibility of explosion with rust carry over in the piping system in pure Oxygen using C.S. Oxygen compressors known to have developed sudden explosion due to small rust carry over in the valve and valve chambers. You can get many case histories reference in www. search of damages for O2 compressor (due to explosion) with rust carry over in the system. Trust this helps you to weigh from using C.S for O2 piping C.V.Srinivasan Nishi Engineers Pvt Ltd India Oct 19, 2006 E-mail: nishi@vsnl.com >Is there a corrosion concern for running pure gaseous oxygen >in a carbon steel line (the oxygen will not have any >moisture or other contaminants)? (I have read various >papers saying this would be possible, but they seem to be >theoretical, rather than practical?) > >If there is a corrosion concern, with the above, what purity >O2 could I use a carbon steel line (product will still be >dry and contaminant free)? > >(Background: I have an existing carbon steel pipeline I am >trying to put gaseous O2 down, cleaning and inspection of >the pipeline will be done if this is possible. I am really >trying to avoid running a smaller stainless steel or HDPE >line through this existing pipeline) > >Thanks for any input.