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Gnee Steel-40CrNiMo hot rolled steel round bars

Gnee Steel-40CrNiMo hot rolled steel round bars

40CrNiMoA steel is a Chinese alloy steel, has high strength, toughness and good hardenability, and has anti-overheating stability, but has high white point sensitivity, temper brittleness and poor weldability. Preheating is required before welding, and stress relief treatment is required after welding.