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Question 1 of 10

1. Question
Which statement is true?
- Stainless steel must contain at least 10.5% nickel
- 316 is the basic austenitic alloy
- 3xx corresponds to ferritic alloys
- Alloying elements such as molybdenum and manganese improves corrosion resistance
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Question 2 of 10

2. Question
Which statement is false?
- Carbon improves the strength of martensitic alloys
- Duplex alloys are sometimes used instead of martensitic alloys
- Phosphorous and sulfur are added to improve machinability of ferritic, martensitic, and austenitic alloys
- Martensitic and PH alloys are strengthened by heat treating
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Question 3 of 10

3. Question
Which statement is correct?
- The first step of continuous casting is ladle treatment
- Continuous cast slab is used to produce bar and tubing
- Scrap metal is melted to produce stainless steel
- During casting, the metal solidifies at once
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Question 4 of 10

4. Question
Which statement is correct?
- It is easier to reduce metal thickness by hot rolling than by cold rolling
- Cold working is used to improve corrosion resistance
- During cold working, metal strength decreases
- Hot rolled steel has less thickness or diameter variation than cold rolled steel
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Question 5 of 10

5. Question
Which of these applies to tensile testing? Select all correct responses.
- Measure force and amount of specimen deformation during the test
- Uses an indenter during the test
- Test specimen can be reused
- Used to determine yield strength and elongation
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Question 6 of 10

6. Question
Which of these applies to hardness testing? Select all correct responses.
- Larger indentation corresponds to larger hardness number
- HRB test conditions are used for softer metals
- Brinell indenter larger than Rockwell indenter
- 80 HB refers to Rockwell B test conditions
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Question 7 of 10

7. Question
Which statements are correct? Select all correct responses.
- For stainless steel, cold working for increasing strength is used primarily with austenitic and ferritic alloys
- Cold working results in increased elongation
- Cold working is used to increase metal strength
- The effects of cold working are enhanced by annealing
- ½ hard steel has been cold-worked more than ¼ hard steel
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Question 8 of 10

8. Question
Which alloys are heat treated to increase strength?
- Austenitic and ferritic
- Martensitic and precipitation hardening (PH)
- Duplex and martensitic
- Precipitation hardening (PH) and austenitic
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Question 9 of 10

9. Question
Which of these alloys has the lowest corrosion resistance?
- Fe – 13.2 Cr
- Fe – 16.5 Cr
- Fe-18.2 Cr – 8.2 Ni
- Fe – 16.7 Cr – 10.2 Ni – 2.0 Mo
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Question 10 of 10

10. Question
Which statement is true?
- Austenitic alloys have the best combination of strength and corrosion resistance
- For a high strength, fair corrosion resistance application, martensitic alloys are better than ferritic alloys
- For an application requiring high strength and good corrosion resistance, 430 is a good choice.
- Adding iron to an alloy helps increase corrosion resistance
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MetalLearn® – Stainless Steel Production and Metallurgy

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