Material Failure

Proportional to wall thickness, which hasn't yet been specified. However, at that temperature, the constant of proportionality is likely to be quite low. (I don't have the strength reduction chart to hand). You might do better with one of the stainless steels, with less wall thickness.

Not enough information.

How about:

1. Pipe dimensions

2. Flow rates

3. Air composition

What is the general process?

It could last hours, days or not at all.

Invitation declined. Please discuss the issue at site, viewing the equipment with the Engineer/Surveyor from the company that supplied burst/collapse indemnity insurance cover for the plant, and follow that individual's recommendations, which will be stated on a periodic report document located in the facility's General Register.

If the pipe has failed I would think that question has been answered....

http://www.amerpipe.com/products/carbon-pipe/a106/specifications

I put a replacement tyre on Renee's moped yesterday. He asked me a very similar question.

The pipe will survive until it fails.

It will fail at the weakest point.

I have forwarded your question on to Carnac the Magnificent.

I have an app for that....

Thanks for the smile!

Based upon the low pressure (if you indeed meant to say 760mm water column), with a very substantial heat, I say it will last right up to the time it implodes, which is about now, from when I started typing, about 30 seconds. SA106 is not structurally sound with any differential pressure at such temperatures, unless you have your engineering units way off.

This appears to be a low carbon steel with slight addition of Mo, and Ni. I really would not use such high temperature with this pipe, unless it merely contains a small zone within the pipe that is such a high temperature (as a small heated filament, etc.) The entire pipe may not reach such temperatures in any environment you have and be expected to be in service for long.

http://www.amerpipe.com/products/carbon-pipe/a106/specifications

Deepesh,

It is important for you to understand that the very reason that chrome moly materials exist is for high temperature applications such as the one you describe.

If carbon steel did not suffer from rapid graphitization from exposure at high temperatures, there would be no market for the higher chrome-moly alloy materials to be offered on the market.

With the low pressure that you describe, I believe that a 304/316 austenitic stainless steel duct/pipe may be of modest cost and suit your needs.

The A106 Gr B is sold in piping dimensions and wall thicknesses that you do not require.

Tell us more about the diameter of the pipe that you require and how you reached the 800C design temperature (is this a guess ?????)