What is the difference between 40Cr material and 35Cr steel

What is the difference between 40Cr material and 35Cr steel?

The chemical composition of 40Cr material and 35Cr steel is different:
40Cr material chemical composition:
C: 0.37-0.44, Si: 0.17-0.37, Mn: 0.50-0.80, Cr: 0.80-1.10.
Chemical composition of 35Cr steel:
C: 0.32-0.39, Si: 0.17-0.37, Mn: 0.50-0.80, Cr: 0.80-1.10.

The mechanical properties of 40Cr material and 35Cr steel are different:
Mechanical properties of 40Cr material:
Tensile strength: ≥980mpa; yield strength: ≥785MPa; elongation after fracture: ≥9%; elongation after fracture: ≥45%; impact absorption energy: ≥47J.
Mechanical properties 35Cr steel:
Tensile strength: ≥930mpa, yield strength: ≥735mpa, elongation after fracture: ≥11%, elongation after fracture: ≥45%, impact absorption energy: ≥47J.