Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength.

Sulfur is added to these sheets, which helps them produce smaller chips than other low-carbon steel sheets when they’re machined. Smaller chips mean less clogging and more coolant flow while you cut.

The surface of this 4130 alloy steel is hardened, so it resists impact and abrasion better than standard 4130 alloy steel. Also known as chrome-moly steel, it has a low carbon content for good weldability.

These sheets have a softened temper, which is also known as annealed, so they can be easily formed into shape and then heat treated for spring properties.