As one of responsible die steel suppliers, Hongsheng Group has been focusing on the development and production of special steel castings, forged bars and mechanical parts for more than 25 years. The company adheres to the principle of "pursuing excellence and building a world brand", and has passed ISO9001, ISO14001, OHSAS18001, got PED, API, CNAS certification, and approved by 8 membership of IACS.

Ring forgings are ring-shaped objects in which external force is applied against the metal blank and transform it by plastic deformation. This force is typically achieved through the use of hammer or pressure. The forging process creates a fine grain structure and improves the physical properties of the metal. Ring forgings can be seen everywhere in daily life.

Cylindrical parts are an important type in the forging industry and are important component of products such as pressure vessels and cracking reactors. The forged steel round bar and steel rod bar can be produced according to the drawings and requirements provided by the customer. The surface of the forgings is clean and has small machining allowance.

Main parameters Ring / Cylinder

Ring:Outside diameter≤Φ850mm  Cylinder:Outside diameter≤Φ850mm

Common technical standards Ring / Cylinder Steel

Ring:     NB/T47008~47010

Cylinder:  GB/T3077 EN10083   EN10085  JB/T6395

Typical steel grades Ring / Cylinder

Ring:   #20, #35, 16Mn, 15CrMo, 1.25Cr-0.5Mo, 2.25Cr-1Mo, 2.25Cr-1Mo-0.3V, 12Cr2Mo1V, 21CrMo10, 0-1Cr8Ni9(Ti), 1Cr17Ni2, 304(L), 316L(N), 321, 347, 00Cr19Ni13Mo3, 00Cr22Ni5Mo3N

Cylinder: 18CrNiMo7-6, 17CrNiMo6, 20CrNiMo, 20CrNi2Mo, 20CrMnMo, 20CrMnTi, 34CrNiMo6, 30CrNiMo8, 40CrNiMo, 35CrMo, 42CrMo

Applications Ring / Cylinder

Gears, wheels, etc. for port machinery and marine machinery. Pressure vessel forgings for chemical machinery

Our company offers high quality round bar for sale and steel cylinders for sale, if you need them, please contact us.