- Free from shrinkage, gas holes, sand and other tool wearing impurities
- No pattern cost
- Homogeneous and close grained structure
- High fatigue strength
- Exceptional dimensional stability
- Low residual stresses
This is one of the hardest grades, (190-260 HB,) and is therefore
used when high tensile strength and/or resistance to wear is
required, because of its pearlitic structure.
Its surface finish is better than that of other softer qualities because
of its better structural cohesion, which allows surface hardening.