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I have a LPG sphere and the construction material is BH-36K and BH-28K. Does anyone know what this material is or what SA number it is similar to? Where can I find information about this material? I have not seen this before.

I have a LPG sphere and the construction material says the material is BH-36K. Does anyone know what this is or where I can find information about this material? I have not seen this before.

mikespell, The relocation never went through, it was an old sphere and cost played a big factor. The base metal was also found to have small fissures when examined under a microscope, so safety also came into play. The question I still have is what code would a re-built sphere fall under. I...

Thanks for all your input, I will recommend to replace not to rebuild. In the past I have seen smaller vessels cut due to corrosion, heads and shell plates removed and new sections welded in. Iam sure that the work was done to API and NBIC, plus done in the USA. So a job this big got me...

The Management of Change is only to remove the sphere from one location to another. I also questioned why not get a new one, where is the cost savings in all this and will it be safe? I agree with all that responed, and your right MJCronin they should not get a code break. I dont know if the...

Thanks for all the tips. The job will be done in Latin America so I have to research the Jurisdictional requirments. The sphere was used to hold butane. We will have a PMI machine here later, possibly in August. This week I will be researching more info on the vessel. Will this job be...

Good follow up questions. There is no data sheet and we are working off limited Information. Vessel is approx.20 years old. A)The material is Carbon Steel, Possible SA-516 B)There is no nameplate on this sphere. C)No new design conitions. D)I have not yet seen a WPS, the job may start next...

Looking to relocate a 55 foot diameter sphere that is 1.25" thick. The work will involve cutting the sphere into pieces and reconstruct it in its new location. Here are a few questions I have. 1. What code will apply yo this job? 2. Would this work be a repair under API 510? 3. What is...

Are the base materials used in pressure vessels constructed to ASME Sec VIII require a "SA"-prefix or is an "A" allowed. This is for carbon and stainless. Thanks for any help,