Carbon Steel Fasteners

Carbon steel is defined as any steel with a carbon content not exceeding 2.1% by weight. As the carbon content increases, the ductility of the steel decreases, and carbon steel bolts become harder and increase in strength after heat treatment.

Regardless of the heat treatment applied to the carbon steel alloy, the higher carbon content in the material reduces the weldability of carbon steel fasteners, while also effectively reducing the melting point of the bolt. Most carbon steel studs are generally softer.

Nuts and bolts exhibit low strength. However, mild steel is highly flexible. High ductility is a property that makes the material ideal for machining and welding. No different elements – used as an alloying agent, not other types of steel, which makes nuts and bolts known as low-cost bolts.