Mechanical properties:
Impact energy Akv (J) ≥78, quenching 850 ℃, heat treatment (normalizing, annealing, or tempering) or without heat treatment delivery, the delivery status should be specified in the contract.
P nickel-phosphorus manganese Mn 0.50 Ni 1.25 Mo Mo 0.15 round: diameter (steel: side width
Kg) = 0.02466 × ◆ thickness