Hi,
I work for a medium sized company that implements a contract which forces the employee to remain with the company for a period of time which is proportional to the cost of the course on which the employee is sent.
I realize that the company would wish to guarantee a gain in value for the...
I have a vessel which cannot be isolated from the piping since the vessel nozzles have welded connections in stead of flanged connections. After a modification to the piping which increases the minimum required hydrotest the following becomes pertinent:
Reading B31.3 345.4 carefully seems to...
On occasion we get a verbal request for our Caesar II models from a client for some or other reason. Mostly so that they can "verify" our work. Up to now we have always rebuffed them and told them that they were welcome to pay us a visit and then we would run through the model with them, but...
At a local refinery, it has become common to plug a leaking firewater line with a shaped wooden dowel. This then stems the flow of water to a sufficient degree to allow a patch or welded fitting to be welded, thereby making the repair permanent. The pressure in the system rarely exceeds 260psi...
I have encountered the following two trains of thought with regarding to the calculation of hydrotest pressures according to ASME B31.3:
1. Determine the hydrotest pressures for different pipe materials according to 345.4 and choose the greatest (given that yield is not exceeded for any pipe)...
I have recently read that the addition of molybdenum to steel lowers the thermal expansion coefficient of that steel.
Is this true, and if so, what is the affect of molybdenum on the microstructure to cause this effect?
