Steve Jackson Games Forums - [LT Armor Loadouts] Expensive Greaves

Quote:

Originally Posted by Pursuivant (Post 2299567)

That said, tin, arsenic, and copper have lower melt points than iron, making brass and bronze slightly easier to produce. Bronze and brass also have much greater fluidity than iron or steel when melted, so they lend themselves better to casting. (Cast iron is tricky to work with because it's notorious for being hot short.)

Cast iron is also generally an alloy that is well known for being brittle - it's not suitable for weapon or armour manufacture. There are steel alloys that can be cast and which aren't brittle, of course, but they aren't TL4- alloys.