Question: Using the data represented in figure, specify equations relating tensile strength and Brinell hardness for brass and nodular cast iron, similar to Equations 6.20a and

Using the data represented in figure, specify equations relating tensile strength and Brinell hardness for brass and nodular cast iron, similar to Equations 6.20a and 6.20b for steels.

20 30 40 50 HRC 250 1500 200 Steels 150 1000 100

20 30 40 50 HRC 250 1500 200 Steels 150 1000 100 500 Cast iron (nodular) Brass 50 100 200 300 400 500 Brinell hardness number (6.20a) TS(MPa) = 3.45 x HB TS(psi) = 500 x HB (6.20b) Tensile strength (MPa) Tensile strength (10 psi)

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