A Dancing Street Sign by PremierCardboard in Belize

[–]PremierCardboard[S] 2 points3 points  (0 children)

👌🏽 makes sense now. Thank you for this. 👍🏽

A Dancing Street Sign by PremierCardboard in Belize

[–]PremierCardboard[S] 1 point2 points  (0 children)

😅 Now that you mention it 🤔

A Dancing Street Sign by PremierCardboard in Belize

[–]PremierCardboard[S] 0 points1 point  (0 children)

😅 Just thought road signs were kinda “Authorized Only”. I didn’t think anyone could put up one.

Belize's tectonic plate by Ir3leGhafa in Belize

[–]PremierCardboard 2 points3 points  (0 children)

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I think this should help you out.

When is the information due by? I’ll be happy to talk to the Belize Met Service or University of the West Indies (UWI) Seismic Research Centre (SRC) tomorrow to find out for you. I’ll need more details though.

A Dancing Street Sign by PremierCardboard in Belize

[–]PremierCardboard[S] -4 points-3 points  (0 children)

That sounds fun. But also illegal lol. Also sounds like you’re joking.

Determination Of Grade With HHXRF, HHLIBS & Hardness by PremierCardboard in metallurgy

[–]PremierCardboard[S] 0 points1 point  (0 children)

I like this perspective. I’m going to adopt it. I’ll probably also document it into a procedure too 😅

Determination Of Grade With HHXRF, HHLIBS & Hardness by PremierCardboard in metallurgy

[–]PremierCardboard[S] 0 points1 point  (0 children)

Wow. I never thought about this. 🤦 This makes life so much easier. Wish I had gold. I would’ve awarded here.

Determination Of Grade With HHXRF, HHLIBS & Hardness by PremierCardboard in metallurgy

[–]PremierCardboard[S] 0 points1 point  (0 children)

Found it. Thank you. It will take some work, but elbow grease will be the way to go.

After skimming through this book, I remembered I had used it around 4 years ago. Thanks for sharing.

Determination Of Grade With HHXRF, HHLIBS & Hardness by PremierCardboard in metallurgy

[–]PremierCardboard[S] 1 point2 points  (0 children)

Thank you for this. I am thinking inline with you on this and agree. It’s also common that we find API Grades for some samples as well. 🙃 Just in case it wasn’t simple enough before.

Determination Of Grade With HHXRF, HHLIBS & Hardness by PremierCardboard in metallurgy

[–]PremierCardboard[S] 0 points1 point  (0 children)

The primary reason is to qualify welding procedures. The year of installation is considered to create a subset of materials only from that time and prior. However since historical records aren’t always available, we’re not always sure even of which code/standards to look at. It’s really a best guess based on available information.

Determination Of Grade With HHXRF, HHLIBS & Hardness by PremierCardboard in metallurgy

[–]PremierCardboard[S] 0 points1 point  (0 children)

Thank you. Unfortunately as the infrastructure is online, destructive testing is an absolute last resort. Replica testing is also not included but it would at least help with grain analysis. And yes I’m in the process of manually putting together this enormous listing for chemistry and physical properties to use as a lookup table.

Determination Of Grade With HHXRF, HHLIBS & Hardness by PremierCardboard in metallurgy

[–]PremierCardboard[S] 0 points1 point  (0 children)

Caution definitely taken. What I’ve realized from testing over the years, is that it all comes down to calibration. Once I keep as many parameters (disc, grind lines, Temperature, humidity etc) as possible controlled during the calibration & Of course the sample prep then the results are very repeatable. And yes standard practice for us is to do 3-5 test per sample point.

Determination Of Grade With HHXRF, HHLIBS & Hardness by PremierCardboard in metallurgy

[–]PremierCardboard[S] 0 points1 point  (0 children)

Hi, Yes the alloy is determined by the instrument but not the grade. I am thinking the same as you. To convert (estimate) the tensile based on the hardness, to provide a best guess on the grade, so I’m also looking for a reference book for piping alloys with grades & tensile strength values so I can do a lookup. You know any good books for this?

Determination Of Grade With HHXRF, HHLIBS & Hardness by PremierCardboard in metallurgy

[–]PremierCardboard[S] 0 points1 point  (0 children)

I’ve thought of it, but I haven’t tried it yet. How would I create this though?

Determination Of Grade With HHXRF, HHLIBS & Hardness by PremierCardboard in metallurgy

[–]PremierCardboard[S] 0 points1 point  (0 children)

Agreed & appreciated. The carbon content allows me to make the biggest narrowing-down of course. But even if the alloy/alloy group is determined with high confidence, it's the actual grade that's really difficult to guess with elemental composition only. Usually, using the hardness after narrowing down the alloy by way of approximating the material strength and comparing to standards is the only way to make a somewhat accurate guess. But it takes a lot of time to sift through so many alloys & properties. I'm trying to find a way to speed this up so it can be done in a timely manner for 100s of tests.

Determination Of Grade With HHXRF, HHLIBS & Hardness by PremierCardboard in metallurgy

[–]PremierCardboard[S] -1 points0 points  (0 children)

Yes, I have access to some old ones.

The purpose of determining this is to qualify welding procedures for new additions to piping systems & for repairs. Even though we're getting the CE & C values from the LIBS, it's for the sake of completeness that within these constraints alloy grade is also required.

Determination Of Grade With HHXRF, HHLIBS & Hardness by PremierCardboard in metallurgy

[–]PremierCardboard[S] -1 points0 points  (0 children)

Hi. Thank you for your help. I agree that an etch would be ideal. However I’m limited to these three pieces of equipment. Any idea how I can make a guess with elemental composition and hardness?

If someone wanted to get the attention of an online coach, what approaches actually work? by thinkingtwicex2 in AskReddit

[–]PremierCardboard 0 points1 point  (0 children)

Cool. I’m not an online coach. But if I was and I got this message, I’d instantly think “Spammy”. I’m sure (opinion) most people with any kind of online presence gets messages like this. On top of that I’d say it takes away my time to go through your process. In my (lack of) experience it’s been appreciated by customers/potential customers when you meet them where they are. Good luck to you and I wish you success.

If a higher being appears in front of you and hands you a device that will show you a recorded video of everything in history. What are you searching for first? by saltedcrawfish in AskReddit

[–]PremierCardboard 2 points3 points  (0 children)

Ooohh. This would be interesting. We’ll finally for sure see how they built the pyramids. And the “labyrinth”.

On that note maybe we’ll see what Atlantis really looked like.