Classification of Carbon and Alloy Steels Quiz
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Questions and Answers

Which element is the major strength agent in carbon steels?

  • Iron
  • Carbon (correct)
  • Sulfur
  • Phosphorus
  • What is the carbon content range for medium-carbon steel?

  • More than 1.40%
  • Less than 0.30%
  • 0.70 to 1.40%
  • 0.30 to 0.70% (correct)
  • What defines tool steel according to U.S steel producers?

  • Capability of being hardened and tempered (correct)
  • Presence of alloying elements
  • High carbon content
  • Ability to resist corrosion
  • What does hot hardness refer to in tool steels?

    <p>Resistance to softening at high temperatures</p> Signup and view all the answers

    What differentiates stainless steel from other steels?

    <p>Resistance to corrosion</p> Signup and view all the answers

    What defines low-alloy steels?

    <p>Less than 8.0% total alloying ingredients</p> Signup and view all the answers

    Which class of stainless steel has carbon content less than 0.2%?

    <p>Ferritic stainless steels</p> Signup and view all the answers

    Which type of cast iron has a hard as-cast structure and is difficult to machine?

    <p>White iron</p> Signup and view all the answers

    What mechanical testing technique is used to determine how strong a material is and how much it can be stretched before it breaks?

    <p>Tension testing</p> Signup and view all the answers

    Which test measures a material's resistance to brittle fracture when a crack is present?

    <p>Fracture toughness</p> Signup and view all the answers

    Which type of stainless steel has at least four major alloying elements, including chromium, carbon, and nickel?

    <p>Austenitic stainless steels</p> Signup and view all the answers

    What type of cast iron contains nodular or spheroidal graphite?

    <p>Ductile iron</p> Signup and view all the answers

    What is the measure of how much a material expands or contracts with a change in temperature?

    <p>Coefficient of thermal expansion</p> Signup and view all the answers

    Which mechanical test is used to determine shear strength or resistance to torsional deformation?

    <p>Shear/torsion test</p> Signup and view all the answers

    Which type of cast iron alloy is the most common?

    <p>Gray iron</p> Signup and view all the answers

    What is the name of the inventor of the impact test to measure energy absorbed by a standard notched specimen?

    <p>Georges Augustin Albert Charpy</p> Signup and view all the answers

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