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Good morning / afternoon / evening all, Quick one. We work for an organization and we are a group of Engineering consultant, operating primarily in the welding field (inspection / supervision / welding engineering). We have of the plainest and meaningless website you can imagine, and we would...

Hi All, Trust you are all well and safe. I manage a small team of site workers (mainly welding supervision and inspection, but I suspect that in this sub-forum there is the largest number of site workers). With the current virus outbreak (Australia), I need to plan a JSA for the workers that go...

Good (morning/afternoon/evening) everyone, I have a question, and unfortunately I can only explain it as best as I can.. however with limited knowledge and understanding I am not sure I will be clear enough. I have heard about quality auditing against various "parts", e.g. "Part 145" and...

Hi all, I was wondering if any of you is aware of any free library for welded joint sketches (e.g. butt weld in different positions, etc). Something like this, to give you an idea: https://conceptdraw.com/a1126c3/p1/preview/640/pict--welding-joints-welded-joints-types Thanks, P.

Hi All, I am working on a project and yesterday I noticed something that did not look familiar to me. We are talking about structural steel (grade 300 / 350). One of the welder was finishing the weld profile wth oxy-cut flame. It was the first time I have witnessed a similar situation. Is...

Hi everybdy, Quick one. I just purchased an infrared thermometer (Fluke) to check the pre-heat temperatures before welding operations. The thermometer is provided without calibration certificate, but with a declaration (in essence, a quality document). My question would be: 1. Do I need to...

Hi There, Hopefully some of you can shed some light on this material : PAN Bz14. It would appear a Bronze/Tin alloy, but I cannot find any additional information about the nominal chem composition. It's quite hard to source (not impossible, just hard) and having the exact chem compositionwould...

Der All, I am developing a repair procedure for a coal mill wheel. It is made with A 217 Grade WC 6 and some eroded parts need to be built up. As the eroded section is not regular across the profile , my idea was to machine it (as minimum as possible) to create a regular profile first, and...

Hi there, I have a SS tank, made of 316L, containing acidic slurry, which is supported externally by a mild steel structure. The tank is welded to the mild steel support using 309L Mo consumable. When the side wall of the tank join the base of the tank (again, both made of SS 316l), the tank...

Hi there, I remember in ASME B31.3 there used to be a table, 331.1.1, which indicates the maximum hardness value for different materials. I noticed that in 2014 version the hardness values are missing: have they been withdrawn for some reasons ? Thanks, S.

Hi there, This is so stupid that is going to be embarassing. I am trying to figure out when a steel is martensitic, or ferritic, or more precisely, when I want a particular final structure from a certain chemical composition. I am aware of the two main families of elements that, added to...

Hi there, I have a material selection problem, and I am trying to analyze it under a temperature / creep point of view. In a valve internals, disc and support are made of carbon steel (Gr 70 and WCB 216), and the bolting to keep them together around the shaft is made of Austenitic SS 316...

Hi All, I have to review a welding recommendation (not a WPS, just some guidelines), and I came across two different materials. It is a gear wheel assembly, around three meters diameter, which is composed by a internal hub (made of carbon steel, 350MPa) and by an external crown teeth, made of...

Dear All, I have a ongoing question regarding the boron content in carbon steel, and how it affects the weldability. Sometimes there is a 8ppm threshold that is reported as the limit for certain pre-heat requirements, or for pre-qualified steel in certain standards, notch tensile strength...

Fellow members, I am in the process of writing a pWPS for a dissimilar joint (high temperature piping for a power plant). Base Material 1: P9 (9Cr 1Mm - Ferritic Steel) Base Material 2: SS 304 (Austenitic SS) Consumable: specifically requested to be EPRI87 (48% Ni, 37 Iron if I remember...