mild steel
low-carbon steel
soft-cast steel

The basic stock is a long coil of mild steel.

Armor plate felt no different from mild steel under his palm.

The result was about as strong as carbon or mild steel.

"It goes through quarter-inch mild steel without giving much notice."

A blade made from low carbon or mild steel would be inexpensive to produce and of poor quality.

The company has tried to cut mild steel 12 mm thick, but the finish was very rough.

The tin bar could be wrought iron or mild steel.

This could be slightly reduced when wrought iron or mild steel was used.

It is made from 50mm mild steel and stands 5.2m high, 15.1m wide and 13.7m deep.

Mild steel also expands under heat which may damage the welds over time.