BS 4449 is intended for manufacturers, fabricators and purchasers of ribbed reinforcing steel (bars, coils and decoiled products) for the reinforcement of concrete structures. It provides designations based on the grade of steel, the product form and dimensions. The standard is used to specify all normal technical requirements for reinforcing steels, including chemical analysis, mechanical properties, rib geometry and tolerances on dimensions.Cross References:BS EN 1766:2000BS EN 10020:2000BS EN 10025-1BS EN 10079 BS EN 10080:2005BS EN 12390-3BS EN ISO 15630-1:2002BS EN 1992-1-1:2004BS EN 13877-3Incorporates the following:AMD 17103, April 2007. Amendment, March 2009. Amends and replaces BS 4449:2005. Amendment, March 2016. Amends and replaces BS 4449:2005+A2:2009