The letter prefix for the AISI classification system for carbon ...

[michelleunicorn]

The letter prefix for the AISI classification system for carbon steels indicates the _____.
 
  a. series of steel
  b. type and class
  c. carbon content
  d. manufacturing process

Question 2

The point at which steel begins to develop brittle properties is when the carbon content is just above _____.
 
  a. 1.0 percent
  b. 1.2 percent
  c. 1.4 percent
  d. 1.7 percent

[FergA]

Answer to Question 1

d

Answer to Question 2

c

[michelleunicorn]

Thanks for the timely response, appreciate it

[atrochim]

Wow, this really help