What is the difference between 35CrMoA and 35CrMo alloy?

The 35CrMoA and 35CrMo alloy are the same material. There is no big difference, and the mainly difference between the old and new Chinese steel standards.

35CrMoA steel is a alloy structural steel grade in the GB/T 3077-1999 standard, and the "A" in 35CrMoA stands for high-quality steel.

35CrMo steel is a new brand of alloy structural steel in the new standard: GB/T 3077-2015.

35CrMo alloy has high static strength, impact toughness and high fatigue limit. It is mainly used to manufacture important parts in various machines that bear impact, bending and torsion, and high load.