A: 42CrMo is the main material of the steering rod at present.42CrMo has high strength and hardenability, good toughness, small deformation during quenching, high creep strength and endurance strength at high temperature.Left and right joint materials:35 # steel, no. 35 high quality carbon structural steel has good plasticity and appropriate strength, good technological performance, good welding performance, mostly used in normalizing and tempering state. No.35 steel is widely used in the manufacture of all kinds of forgings and hot-pressed pieces, cold-drawn and top-forged steel products, seamless steel pipes, parts in mechanical manufacturing, such as crankshaft, shaft pin, lever, connecting rod, beam, sleeve, wheel rim, washer, screw and nut, etc.
(1)Tie end rod and ball joint is forging rough pieces after quenching processing and surface treatment pressure into the ball seat, ball head, through the clasp will be fixed dust jacket;
(2) the surface treatment of these products is generally direct electrophoresis, good quality surface treatment for phosphating and then electrophoresis;German cars and high-end cars adopt zinc-nickel alloy electroplating, with more natural colors and Japanese cars with third-order colors.