Table 004

Properties of Grey Cast Iron

This table contains mechanical property reference data for various grey cast irons.

This table includes Tensile strength, Compressive Strength, Shear Modulus of Rupture, Tensile Modulus of Elasticity, Torsional Modulus of Elasticity, Endurance Limit and Brinnel hardness information.

(The American Society for Testing Materials (ASTM) numbering system for grey cast iron is established such that the numbers corespond to the minimum tensile strength in kpsi. Thus an ASTM no. 20 cast iron has a minimum tensile strength of 20 kpsi. Note particularly that the tabulations are typical values. Multiply strength in kpsi be 6.89 to get strength in MPa.)

                                
                                Shear      Modulus of elasticity,
         Tensile   Compressive  modulus of         Mpsi           Endurance Brinell
ASTM     strength, strength,    rupture,   ---------------------- limit,    hardness,
number   kpsi      kpsi         kpsi        Tension   Torsion     kpsi      H_b
-------- --------- -----------  ---------- ---------- ----------  --------- ---------
 20        22         83           26        9.6-14    3.9-5.6       10        156
 25        26         97           32       11.5-14.8  4.6-6.0       11.5      174
 30        31        109           40       13.0-16.4  5.6-6.6       14        201
 35        36.5      124           48.5     14.5-17.2  5.8-6.9       16        212
 40        42.5      140           57       16.0-20    6.4-7.8       18.5      235
 50        52.5      164           73       18.8-22.8  7.2-8.0       21.5      262
 60        62.5      187.5         88.5     20.4-23.5  7.8-8.5       24.5      302
-------- --------- -----------  ---------- ---------- ----------  --------- ---------