Forgive me if this is the wrong forum, but it seems like the most appropriate place to start.
I work for a large utility that raises steam for electrity generation in the UK. I get enquiries from time regarding the installation of hot waters systems that run from our oil fired auxiliary boilers...
I'd like some views from some of the experts on this forum if possible.
Bearing in mind I'm just about to go on holiday for a couple of weeks, I won't be able to respond to any queries you may have but I'd like to gather opinion in the first instance.
I have been seeing a possible increase in...
I've looked and looked but am struggling to find any recommendations for the tempering of a 420 weld metal deposited using a MIG/MAG process. Can anyone help?
I'm looking for some informed opinion on why this might be...
BS 2633 (Arc welding of ferritic pipework carrying fluids) details PWHT requirements for various materials depending on thickness.
For carbon steels, <0.25%C, there is no requirement for PWHT provided the thickness is less than...
I'm trying to find out what grades of aluminium are used for earth (ground) straps for a turbogenrator stator. I've been asked to look at weld procedures for welding these together and although the weld procedures are fine, I need to be sure what typical grades are used in the UK, if anyone can...
A query has been raised over a 'survey' that is required on our sulphuric acid delivery lines. These lines, 2" and 3" OD are carbon steel (I think) and are used to deliver 90 - 96% sulphuric acid to bulk storage tanks.
The person requesting the survey has not specified exactly what they require...
Hi all, I'm in need of a bit of advice.
We recently received a component made from ASTM A890 Gr5A duplex stainless. This was overlayed with stellite 6 at a location that one would expect to be overlayed. Initial looks at the overlay suggests that the stellite hadn't bonded with parent at all...
The earlier post on this subject was specific to a different steel alloy. I have experienced a reduction in hardness on parent material after a stress relief.
The background - An 8" diameter shaft (BS 970 Grade 080M40 - .36 - .42% C) was machined down and overlayed with weld metal about...
In an earlier thread a correspondent was looking for information on shaft repairs. I have a similar task to carry out and one of the replies suggested that API 687 would be a good reference source. I am a bit reluctant to purchase this document without a bit more information.
Can anyone tell...
