IS 16172-2014 - Standard for Reinforcement Couplers for Mechanical Splices of Bars in Concrete - Specifications
IS 16172:2014 Reinforcement Couplers for Mechanical Splices of Bars in Concrete - Specifications Class H – Couplers which meet both Low cyclic fatigue test and high cyclic fatigue test requirements shall be classified and Designated as Class H Couplers Class L – All other Coupler which meets only low cycle fatigue requirements shall be designated as Class L Couplers Grade Fy (yield strength) Fu (Ultimate Strength) % Elongation of Bar (min) Fe 500 500 N/mm^2 545 N/ mm^2 12% Fe 500D 500 N/ mm^2 565 N/ mm^2 16% Fe 550 550 N/ mm^2 585 N/ mm^2 10% Fe 550 550 N/ mm^2 600 N/ mm^2 14.5% Fe 600 600 N/ mm^2 660 N/ mm^2 10% IS 16172 :2014 ...