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The new DIN EN 1563:2012-03 Dipl.-Ing. (FH) A. Merten The new DIN EN 1563:2012-03 Dipl.-Ing. (FH) A. Merten
The new DIN EN 1563:2012-03 Dipl.-Ing. (FH) A. Merten
The new DIN EN 1563:2012-03 Dipl.-Ing. (FH) A. Merten
2/16Siempelkamp Giesserei, 2012
EN 1563:2012
Overview of Changes • Addition of solid-solution strengthened ductile cast irons
• Mechanical Properties always independence on the wall thickness
• No material grades by hardness
• New „side-by-side cast sample“
• Sample dimension in dependence of the relevant wall thickness
• New annexes
EN 1563:2012
Siempelkamp Giesserei, 2012 3/16
Solid-solution strengthened GJS
•Up to now, only one family of material grades were defined: ferritic to pearlitic spheroidal graphite cast irons
••EN 1563:2012 introduces a new material family: solid-solution strengthened ferritic spheroidal graphite cast iron (cast iron with nodular graphite and a ferritic matrix, that is hardened through silicon)
•First international standard to establish high-silicon containing DCI ISO 1083:2004, in Annex A (normative): “Spheroidal graphite cast irons with high silicon content”
EN 1563:2012
Solid-solution strengthened GJS
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•For the first time in a national standard a chemical analysis is recommended for ductile cast Iron.
•Appendix A describes informative possible chemical compositions, graphit structure, the iron matrix etc.
EN 1563:2012
Spheroidal graphite cast irons – Relation between Brinell hardness and 0,2 % - proof strength
Annex A
• maximum pearlite content 5%
• maximum free cementite 1%
• up to 20% Form III especially
in heavy walls acceptable
• higher Rp0,2/Rm-ratio
• changed strength/hardnessratio!
Higher proof strength at lower ardness!
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Solid-solution strengthened GJS
EN 1563:2012
•Up to now the mechanical properties are defined for separately cast samples and for cast-on samples.
• In EN 1563:2012 the mechanical properties of each family of material grades is defines in dependence on the wall thickness regardless of the type of sample used.
•Designation of the sample typeS – separately cast sampleU – cast-on sampleis omitted!( C for samples cut from the casting is mantained)
•Three ranges of wall thickness are considered!
Dependence on the Wall Thickness
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EN 1563:2012
Types of Cast Samples
Up to now, three types of cast samples were defined• separately cast samples (sample, that is cast in a separate mold at the same
time and under representative manufacturing conditions as the casting)• cast-on samples (sample, that is cast attached to the casting)
• samples cut from the casting
EN 1563:2012 added a new type of cast sample• side-by-side cast sample (sample, that is produced in the same mold as the
casting using the same sprue)
Siempelkamp Giesserei, 2012 7/16
EN 1563:2012
• In the current version of the standard no dependence of the sample size from the relevant wall thickness of the casting is imposed
• In EN1563:2012 the size of the sample has to be chosen according to the relevant wall thickness in four ranges
• Relevant wall thickness: Wall thickness representative for the casting, defined for the determination of the cast samples to which the mechanical properties apply
Relevant Wall Thickness
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EN 1563:2012
Guidance Values for Hardness
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Up to now (EN 1563:1997) a designation of a sheroidal graphite cast iron grade by hardness was possible
In EN1563:2012 the designation by hardness is omitted.Guidance values for the hardness of the different material grades are given in Annex C.
EN 1563:2012
A - Additional information on solid-solution strengthened ferritic spheroidal graphite cast irons
B - Guidance values for mechanical properties measured on test pieces machined from samples cut from the castings
C - Guidance values for hardness
D - Nodularity
F - Fracture toughness, impact energy and ductility of spheroidal graphite cast irons
G - Sectioning procedure for cast samples
H - Comparison of spheroidal graphite cast iron material designations according toEN 1560 and ISO/TR 15931
I - Un-notched impact test
New Annexes (All Annexes are informative!)
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EN 1563:2012
Annex F – Fracture Toughness
Introduction to fracture thoughness
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EN 1563:2012
Annex F – Fracture Toughness
Comparison of impact energies of different spheroidal graphite cast irons
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EN 1563:2012
Annex G – Cutting Prozess
Y-shaped samples(seperately cast)
Cast-on samples
Principle: Sampling at the edge
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Thank you for your attention!
