Posted 31 July 2008 - 06:43 AM
ya, just a word of warning. Even if something is steel, if it is not cast properly, (even if it is cast into a block and machined out), the steel can actually be weaker than aluminum. From an engineering standpoint, if random bits of impurities (phosphorus for example) makes its way into the steel, it "pre-stresses" the crystalline structures of the metal and makes it have areas that are prone to fracture.
Think of it this way. If there are two chains, and one is made of steel and one is aluminum. While the steel one SHOULD be stronger, if one of the chains is weaker than an aluminum link, then the whole chain itself is weaker.
China's been dumping out really bad steel for years, and although many places have definitely turned a new leaf, other areas still pump out the same less than satisfactory stuff.