- Bright Drawn Round
- Bright Drawn Hexagon
- BS 970:1996 230M07PB (now redundant)
- BS EN 10277-3:2008 11SMnPb30 (closest current standard)
230M07PB is a low carbon, easy free cutting steel. The material is similar to 230M07 but with the addition of lead. The lead, sulphur and phosphorous levels ensure easy high speed machining and enable very high quality surface finishes to be achieved without additional processing. The material is not recommended for any load bearing applications and is not recommended for welding or galvanising. Many companies still specify 230M07PB or EN1APB for requirements however BS 970 has been superceded by PD 970 with many of the original standards now present in current EN standards of a different number (eg, BS EN 10277).
Mechanical values are given for the hot rolled (U) condition.
Refer to specific applicable standards for full specifications.