Wrought iron is generally longer-lasting than cast iron. As we said, cast iron is harder but it’s also more brittle. The extra carbon in its molecular structure compared with wrought iron results in internal stress points that are more likely to fracture under extreme stress rather than bend. There are advantages and disadvantages to this: cast iron is more likely to retain its exact shape without undergoing any warping or bending.
Cultural Significance
Mechanical strength and corrosion resistance of this aluminum grade is incredible. You can easily form this grade using conventional methods, but cold-working is seemingly the ideal technique in some tempering conditions.