Hello all
Am having trouble with high temperature cracking of a gas turbine steam dump line. The 600mm dia line is made of CrMo and C/S welded together, though cracking is evident circumferentially in both materials. Cooling water is injected into the pipe when in operation at around 40 degC...
Hello all
Am currently replacing a 98% H2SO4 carbon steel line running at ambient temp around 40 deg C with 316L. The line is approximately 200 meters long and 250mm diameter. As such it has multiple welded joints. The question is do I need to passivate this line internally to give me...
Has anybody had any experience with carrying out weld repairs to cracking on a 304H stainless steel vessel at 400 deg C. The vessel is not under pressure though operations are not keen to turn down the temperature to repair. Cracks are at a large nozzle to 300mm length. If anybody has had a...
I currently have an issue where an H2SO4 - 98% >70 deg C line has eroded at elbows/welds etc from flow induced erosion due to the velocity and volume of acid travelling through the pipe. I am looking to replae this line though currently have conflicting advice on maximum allowable flows prior to...
We have a submerged pump casing with a minor pin hole through a web section. The casing is submerged and in hot sulphuric acid service.
I have spoken with the manufacturer who is not keen to advise on the material propoerties other than it is made of a white cast iron. They have also advised...
We have a pump casing made from L-14 iron and we want to know if we can carry out some minor weld repairs. The casing is ex USA and is in Sulphuric acid service. After some searching, I have not been able to find a material chemistry. Does anybody know of this material and can it be...
