Comparison of Mechanical Properties of Gray and Ductile Iron Castings at Room Temperature

Fonderie Saguenay are a jobbing shop specializing in producing components in materials such as gray iron and ductile iron.

Comparison of Mechanical Properties of Cast Iron with Steel Castings

The following table has been compiled to assist with the selection of the ideal grade of cast iron for your castings. Data for cast steels is also provided for comparison purposes.

Property
Gray Iron
Ductile Iron
Low Carbon Steel Casting
Low Alloy Steel Casting
Tensile strength (Ksi) [U]
25 to 50
60 to 100
70
90
Yield strength (Ksi)
40 to 60
45
60
Elongation (%)  [EL]
<1
20
26
23
Hardness  (BHN)
160 to 210
170 to 220
120 to 160
180 to 220
IN IMPACT MODE (Typical values)
Charpy test - V-shaped notch [J] at 200C
1.5-7
12-20
25-50
60-120
Crack growth resistance (MPa   m)
11-19
45-100
50-175
50-175

This information has been sourced, reviewed and adapted from materials provided by Fonderie Saguenay.

For more information on this source, please visit Fonderie Saguenay.

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