BO1 Tool Steel (BS 4659)
We stock BO1 tool steel which is oil-hardened containing chromium, vanadium & tungsten. The steel finds use in various applications, particularly in manufacturing much larger parts.
The material is an excellent general-purpose engineering tool steel. The oil-hardened product gives good wear and abrasion resistance. High hardness is another feature, as well as durability.
- Press tools, punches, dies and broaches
- Forming and raising tools where wear resistance is a consideration
- Tools for woodworking
- Measuring tools
The product is a cost-effective alternative to high carbon/chromium tool steel, providing enough toughness for various engineering applications. In comparison, high carbon/chromium tool steel is more challenging to machine. With increased hardness, the steel does not require severe quenching - this reduces the risk of cracking and ensures excellent dimensional stability in hardening. An equivalent product grade is 1.2510 steel.
Chemical Composition (weight, %)