1. Cold-rolled steel allows local buckling of the cross section, so that the bearing capacity of the bar after buckling can be fully utilized; while hot-rolled steel does not allow local buckling of the cross section. 2. The causes of residual stress in hot-rolled and cold-rolled steel are different...
Why does stainless steel also rust? When brown rust spots appear on the surface of stainless steel pipes, people are surprised: they think "stainless steel does not rust, and if it rusts, it is not stainless steel, and there may be something wrong with the steel." In fact, this is a one-sided wrong ...
Stainless steel is a common high-grade alloy steel with the characteristics of stainless, acid resistance, high temperature resistance, wear resistance and austenite generally non-magnetic. Most of the stainless steels we see in daily life are 302, 304 and other similar grade nickel-chromium ...