(62) 65-45-12 Ductile Iron contains nodular graphite in a matrix of ferrite with small amounts of pearlite. The ferritic structure gives excellent machinability with good surface finishes along with optimal impact strengths, fatigue properties, electrical conductivity and high magnetic permeability. This iron has approximately the same tensile and yield strengths as AISI 1020 Steel in the as-rolled condition. This specification conforms to ASTM A536 grade 65-45-12. The microstructure consists of Types I & II nodular graphite as defined in ASTM A247. The matrix is ferrite with approximately 5-25% pearlite. The “rim” will have a higher nodular count and will be mostly ferrite. Chill carbides will be less than 5% in any field at 100x and will be ...
(10) 65-45-12 Ductile Iron contains nodular graphite in a matrix of ferrite with small amounts of pearlite. The ferritic structure gives excellent machinability with good surface finishes along with optimal impact strengths, fatigue properties, electrical conductivity and high magnetic permeability. This iron has approximately the same tensile and yield strengths as AISI 1020 Steel in the as-rolled condition. This specification conforms to ASTM A536 grade 65-45-12. The microstructure consists of Types I & II nodular graphite as defined in ASTM A247. The matrix is ferrite with approximately 5-25% pearlite. The “rim” will have a higher nodular count and will be mostly ferrite. Chill carbides will be less than 5% in any field at 100x and will be ...
(62) G2 Gray Iron is a pearlitic gray iron containing Type A graphite. Gray Iron bars made to this specification have optimal strength, wear and hardness when compared to the other gray iron grades. This material is well suited for applications requiring high resistance to wear and response to heat treatment. This specification is similar to ASTM A48/A 48M, Class 40. The microstructure will contain Type VII, A, size 4-6 graphite as defined in ASTM A247. The matrix is fully pearlitic. The rim will consist of Type D, size 4-6 graphite in a pearlite matrix with small amounts of ferrite. Chill carbides will be less than 5% in any field at 100x and are well dispersed.
(39) G2 Gray Iron is a pearlitic gray iron containing Type A graphite. Gray Iron bars made to this specification have optimal strength, wear and hardness when compared to the other gray iron grades. This material is well suited for applications requiring high resistance to wear and response to heat treatment. This specification is similar to ASTM A48/A 48M, Class 40. The microstructure will contain Type VII, A, size 4-6 graphite as defined in ASTM A247. The matrix is fully pearlitic. The rim will consist of Type D, size 4-6 graphite in a pearlite matrix with small amounts of ferrite. Chill carbides will be less than 5% in any field at 100x and are well dispersed.