The ship's armor was constructed with Harvey steel manufactured by Creusot.
2.
"Montana " was armed with a main battery of four Harvey steel.
3.
However, delays in the delivery of components, including the new Harvey steel armor, slowed completion.
4.
Although all three armors shared the same density ( about 40 pounds per square foot ), six inches of Krupp or Harvey steel gave the same protection as 10 inches of nickel.
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