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Liberty Casting Company

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Metal Specifications
gray iron
Class Minimum Tensile Strength (PSI) Hardness Range (BHN)
25 25,000 156 - 196
30 30,000 160 - 217
35 35,000 187 - 229
40 40,000 196 - 241
45 45,000 196 - 255
50 50,000 207 - 269
     
ductile iron
Class Minimum Tensile Strength (PSI) Minimum Yield Strength (PSI) Minimum Elongation % Hardness Range (BHN)
60-40-18 60,000 40,000 18 140 - 187
65-45-12 65,000 45,000 12 163 - 207
80-55-06 80,000 55,000 6 187 - 255
80-60-03 80,000 60,000 3 207 - 277
100-70-03 100,000 70,000 3 241 - 302
120-90-02 120,000 90,000 2 248 - 321
 
Alternative specifications can be made to meet customer requirements.