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WM LEE CNC SPEEDWELL
Spheroidal Graphite Iron

Spheroidal Graphite Iron

SG Iron Castings are manufactured in accordance with the European Standard EN1563:1997, and in the grades tabulated below:

Mechanical Properties

GradeTensile Strength (RM) 
N/mm2 min.		0.2% proof stress (Rp0.2)
N/mm2 min.		Elongation (A) 
% min.
EN-GJS-400-18-LT1)40024018
EN-GJS-400-18-RT2)40025018
EN-GJS-400-1840025018
EN-GJS-400-1540025015
EN-GJS-450-1045031010
EN-GJS-500-75003207
EN-GJS-600-36003703
EN-GJS-700-27004202
EN-GJS-800-28004802
EN-GJS-900-29006002
1) LT for low temperature
2) RT for room temperature

Minimum impact resistance values measured on V-notched test pieces machined from separately cast samples.

GradeMinimum impact resistance values (in J)
Mean value from 3 setsIndividual ValueTemperature
EN-GJS-400-18-LT1)129-20+/-2oC
EN-GJS-400-18-RT2)141123+/-5oC