- 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
GGG 50 (170-240 HB) has a better resistance to wear than GGG 40 because of its
pearlitic-ferritic structure, and is therefore recommended for applications in which good
machinability and surface finish are required, as well as minimal friction with other
parts and/or materials.
The values of hardness vary according to the dimensions of the bar, producing a
maximum of 240 HB (for pearlitic structures of 15/20%). This means that GGG 50 also
complies with the mechanical characteristics required and the values of hardness of
GGG 40 and GGG 50.