[LZ_Baker]

Originally Posted by Storabrun

I would assume that the thickness is actually more important than the strength of the material in this case. I'm no expert in submarine design, but if we want to simplify this it's probably more related to bending of a bar than to pulling it apart. 80,000 psi is better than 32,000 of the double thickness when it comes to pulling a rod apart, but not when trying to bend it since strength against bending is proportional to the square of the thickness. The better quality steel would have an edge of 25% for pulling, but the thicker normal steel would be 60% stronger against bending.

Touche