A Rockwell hardness measurement is made on a ductile iron (80-55-06 as cast) and the obtained Rockwell hardness R scale is 13 HRC. Predict the tensile and yield strengths of this material.
A Rockwell hardness measurement is made on a ductile iron (80-55-06 as cast) and the obtained Rockwell hardness R scale is 13 HRC. Predict the tensile and yield strengths of this material.
Welding: Principles and Applications (MindTap Course List)
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1. A Rockwell hardness measurement is made on a ductile iron (80-55-06 as cast) and the
obtained Rockwell hardness R scale is 13 HRC. Predict the tensile and yield strengths of this
material.
2. A Brinell hardness measurement is made on a ductile iron (120-90-02, Oil-quenched) using a
10-mm-diameter sphere of tungsten carbide. A load of 3,000 kg produces a 3.52-mm-
diameter impression in the iron surface.
a. Calculate the BHN of this alloy. (The correct units for the Brinell equation are
kilograms for load and millimeters for diameters.)
b. Predict the tensile and yield strengths
3. Suppose that a ductile iron (100-70-03, air-quenched) has a tensile strength of 800 MPa.
What diameter impression would you expect the 3,000-kg load to produce with the 10-mm-
diameter ball?
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“Since you have posted a multiple question, we will provide the solution only to the first question as per our Q&A guidelines. Please repost the remaining questions separately.”
Given data:-
ductile iron specification= 80-55-06
Rockwell's hardness R scale = 13 HRC.
To find:-the tensile and yield strengths of this material.
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