Redmark Engineering

GGG 50

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GGG 50

  • 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.