Radition Level from Steel
Radition Level from Steel
(OP)
"The Mill Test certificate shall state that the radiation level from the steel
plates is less than 100 beckerels/gram"
Why radiation level is limited?
plates is less than 100 beckerels/gram"
Why radiation level is limited?
Nasir
Welding Engineer
DESCON ENGINEERING LIMITED
PAKISTAN





RE: Radition Level from Steel
This used to be a big deal in the day of film cameras.
It still is for some instrumentation applications.
I believe that technically there are radiation limits for all material imported into the US or EU.
Though as I recall finding information is very difficult.
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P.E. Metallurgy, Plymouth Tube
RE: Radition Level from Steel
Doesn't cause hot "radiation" problems to any real-world users, but it was too much for the sensitivity of what these guys were trying to measure. So they cut up WWII battleship armor plate, melted it separately from ANY other metals (because it had been originally mined and smelted before any fallout landed anywhere) and went off on their merry way.
US Navy and civilian nuclear plant alarms regularly went off from released radiation from Russian and Chinese blasts, so fallout is definitely detectable. Meaningful? Well, radiation is hazardous in too great a quantity, and you CANNOT detect it without special instruments specifically looking for radiation. It's better to have a specification that will (realistically) never be exceeded, but check it anyway; rather than not check it at all and just assume there is no radiation present. A recycled nuclear plant primary pipe WILL contaminate future steels.
RE: Radition Level from Steel
Apparently some medical radiological devices were included in the scrap when it was melted.
The truckload of these set off the alarms when the truck crossed the boarder.
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P.E. Metallurgy, Plymouth Tube
RE: Radition Level from Steel
RE: Radition Level from Steel
RE: Radition Level from Steel