3 ms·

Now I'm curious how boiler plate is made. Can't find much - its all code stuff per google search. Seems like its just hot rolled steel plate to a certain thickn

• bell-cot 4y ago
  IANAM (...Not A Metallurgist), but this looks plausible...(if extremely simplified): https://steelplates.in/how-to-manufacture-steel-plates-sheets/ https://steelplates.in/how-to-manufacture-steel-plates-sheet... From vague memory, the two huge issues for armor plate (especially ~150 years ago) are: - Having the extremely heavy equipment needed to roll very thick plates. ~Nothing except warship armor was anything resembling that thick, for such equipment to even have been developed previously. - The specialized metallurgy & treatments needed to make "hard" armor. Iron/steel plate for other purposes (boilers, etc.) was optimized for physical properties which bore very little resemblance to "resistant to penetration by high velocity cannon balls".