I have seen one sheets of paper ripped by a toddler but when you put four or five sheets TOGETHER it makes a different and cannot be ripPed----thats just to say every fraction OF STEEL counts
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thats just to say every fraction OF STEEL counts
It could be the same batch of 6061-T6 but aerospace require 100% traceability so in reality, its just more paperwork in many (not all) cases.
Splitting hairs when your are talking the small thicknesses that we are discussing here.
Today 03:51 PM
37.3% more steel on 7ga verses 10ga.
That is very cool trivia. I did not know that you guys have to keep records for 50 years. About the only thing I know about aluminum production is the insane current required to run the electric arc furnaces. If I remember correctly, aluminum production plants are typically next to large bodies of water and require their own power plants to operate. We have to do ISO and AS stuff as well which includes all sorts of record-keeping, plus annual NIST traceable calibration of measurement tools. While it's a pain in the ass, I think it comes down to "cover your ass". I don't keep track of material logging but I think most of our aluminum is Alcoa. A majority of titanium we receive comes from Russia for aerospace work as they're still the largest global producer of titanium. Russia sounds iffy and the stock is usually in rough shape, but the stuff gets sent out for state-side chemical and mechanical analysis for certs and it all seems to pass.We are required to hold all records for 50 years, that's all furnace surveys, heat treat and quench cycle records for every lot we produce. All instruments are traceable to NIST standards and calibrated yearly so there is a big difference between the metal we produce from a quality standpoint than what you find being produced in plants from China and other developing countries; same is true for steel.
If I remember correctly, aluminum production plants are typically next to large bodies of water and require their own power plants to operate.
Yea, but if a1adbj says that a firebroad can help a little, why not even a fraction of steel make a different
Again, with the thin thicknesses we are discussing here, I'm not concerned with the % of extra steel. If we aren't talking thicker plate steel, then a fire ax is getting in period. To think it's not is fooling yourself.
If a lot of little bit is needed its still is better then none, i see the bf that you back-up so greatly use some sort of soft cement
the strength of concrete is rated in units of pressure, typically 2000-10000 psi for structural application. thermally insulating concretes (like AMSEC uses) are very low in density (due to their fillers including air). they have very little compressive strength and are not used where resistence to significant force is required.
Have you ever handle the material when it was outside/not filled inside a safe
How can true burglary rated safes have "concrete" in the 30,000 psi range, yet still resist temperatures much higher than what gun safes are rated at, and for much longer times?
Keizer----a1adbj said that the thickness is about the thickness of a novely sign----can you punch through one--nooooooooo----not even i, but every fraction of steEl counts
I'm just trying to show that every bit of steel counts,