Hot Forging S355 Steel Forged A36 Steel Retaining Ring

Forging transforms solid metal from one shape to another through plastic forming processes like extrusion or punching, either hot or cold. Casting transforms liquid metal into a solid shape by pouring molten metal into a mold. Forging is a solid-to-solid process, while casting is a solid-liquid-solid process.

Quality is determined by external observation (checking dimensions, surface defects like cracks or wrinkles) and internal testing (analyzing chemical composition, microstructure, and mechanical properties like tensile strength and hardness using specialized instruments).

The process includes pier roughening, elongation, punching, and expanding. Free forging uses a horse screw to expand holes, while ring rolling uses rolling. Both methods aim to achieve the desired shape and structural integrity.

The product is made from 45# carbon structural steel (GB/T699-1999), which has a carbon content of 0.42~0.50%. It offers good cutting performance, high hardness after quenching, and excellent strength and toughness after tempering.

The product is certified under GB/T19001-2016 and ISO9001:2015 standards, ensuring quality management and manufacturing consistency.