The four-digit identification number used to designate carbon steel coils. AISI stands for the American Iron and Steel Institute. The first two digits in the AISI number indicate the grade of steel, while the last two digits give the amount of carbon in the steel.
The Fabricator Blog
The daily grind in a small fab shop - by Nick Martin A day in a small fabricating shop seldom follows a linear progression. Many things vie for attention, and the ability to multitask comes in handy.
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