Ductile Cast Iron
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OUR MATERIAL RANGE:

Spheroidal Graphite (Ductile) Cast Iron in Accordance with DIN Standards

Spheroidal graphite cast iron offers impressive steel-like properties which are imparted to the material as a result of a special metallurgical treatment. The graphite present in spheroidal form allows the achievement of good chip interruption and minimized tool wear despite comparatively high strength. Consequently the material spheroidal graphite cast iron helps reduce machining times and drive down production costs.

Tensile properties in different wall thicknesses

Material Material
number
Values in the separately
cast test bar
Significant
wall thickness
in the
casting
Thick-
ness
in the
cast
sample
Tensile
strength
Yield
strength
(0,2 %-
point)
Elong-
ation
Tensile
strength
Yield
strength
Elong-
ation
Brinell-
hardness
N/mm2 N/mm2 % HB30 mm mm N/mm2 N/mm2 %
GGG-40
EN-GJS-400-15
0.7040
EN-JS1030
400 250 15 140-190 30-60 40 390 250 17
60-200 70 370 240 14
GGG-50
EN-GJS-500-7
0.7050
EN-JS1050
500 320 8 140-190 30-60 40 450 300 8
60-200 70 420 290 6
GGG-60
EN-GJS-600-3
0.7060
EN-JS1060
600 380 4 200-250 30-60 40 600 360 3
60-200 70 550 340 2
GGG-70
EN-GJS-700-2
0.7070
EN-JS1070
500 320 8 140-190 30-60 40 700 400 3
60-200 70 650 380 2
Material Material number Wall thickness in the casting Expected values in the casting
starting at mm up to mm Tensile strength Rm
N/mm2
Yield strength
(0,2%-point)
N/mm2
Elongation
%
GGG-40
EN-GJS-400-15
0.7040
EN-JS1030
50 80 380 240 15
80 120 370 230 12
GGG-50
EN-GJS-500-7
0.7050
EN-JS10500
50 80 450 300 7
80 120 440 290 6
GGG-60
EN-GJS-600-3
0.7060
EN-JS1060
50 80 520 340 2
80 120 470 320 1
GGG-70
EN-GJS-700-2
0.7070
EN-JS1070
50 80 600 380 1
80 120 570 370 1