Cold heading steel ML20, see: GB / T 6478-2001 cold heading and cold extrusion steel concrete components: C 0.18 - 0.23 Si 0.15 - 0.35 Mn 0.30 - 0.60 cold heading performance is one of the important properties of cold heading steel Cold heading steel should have the main performance, with good cold formability; for cold heading steel deformation as small as possible to have a high resistance to deformation and possible mechanical properties for this 1018 general requirements flexor cold heading steel. stronger than is 0.0.65, reduction of greater than 50%. In addition 1018, in order to avoid surface cracking during cold forging, requiring good surface quality of steel, while steel surface decarbonization be as small as possible. standard cold heading steel should be Cold top test requirements specimens cold upsetting top after the cold front forging height ratio for senior; 1/4; higher; 1/3; ordinary level; 1/2 to 1/2 of the general standard can not be used 20. # replaced. 37CrB1E of cold heading steel cold heading steel development and production of preliminary results already achieved, but the quality remains to be further improved. Understanding and knowledge of domestic and international cold heading steel production technology complete specifications 1018, under heavy steel company's existing production equipment condition, learn the successful experience of other steel 1018 round, in the production process adhere to optimize the entire process of cold heading steel technology rules, hot metal pretreatment, smelting, ladle refining, continuous casting machine casting, strengthen billet heating, intermediate rolling, spinning temperature control, in strict accordance with standards, the market can produce the required performance of cold heading steel . 1018 factory outlets, 1018, provided by the Suzhou, Suzhou, with the same metal material Limited. Suzhou, with Metal Materials Co. (www.szrtjs.com) located in Wuzhong District, Suzhou City Pu Town and Xi Road No. 1238 (Puyang intersection). Scraps and development in the wave of market economy, the current Suzhou, with has a high profile in the metal building, and enjoys a good reputation. Suzhou, get the whole network business alliance with certification, marking our service and management level has reached a new height. Suzhou, with the staff willing to work with all people of insight and common development, for a better future.