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Author Question: When low-carbon steel with a carbon content of less than 0.30 percent is in freezing temperatures, ... (Read 45 times)

faduma

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on: Jul 24, 2018
When low-carbon steel with a carbon content of less than 0.30 percent is in freezing temperatures, it must be
  preheated to a temperature above _____.
 
  a. 40F (4C)
  b. 70F (21C)
  c. 100F (38C)
  d. 500F (260C)

Question 2

Medium- or high-carbon steels are made hard and brittle by _____.
 
  a. postheating
  b. quenching
  c. preheating
  d. fluxing


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katkat_flores

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Reply #1 on: Jul 24, 2018
Answer to Question 1

b

Answer to Question 2

b


faduma

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Reply 2 on: Jul 24, 2018
Excellent

peter

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Reply 3 on: Yesterday
:D TYSM

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