1070 Steel is a simple carbon steel with good toughness and shock resistance. It also has an easy heat treatment cycle and is a good starter steel. It is also known as CS70 spring steel.
 
Chemical Composition:-
 
  
   | 
    C: 
    | 
   
    Mn: 
    | 
   
    P: 
    | 
   
    S: 
    | 
  
  
   | 
    0.65 - 0.75% 
    | 
   
    0.6 – 0.9% 
    | 
   
    0.03% 
    | 
   
    0.05% 
    | 
  
 
 
Suggested Heat Treatment:
Heat to 788 – 829C (No holding time required)
Oil Quench (Suggested oil is Rye 32)
Temper for two hours at 200C for 59-60HRc 
 
Supplied in 1000mm Lengths - Hot Rolled Annealed