Grade:c-60 en-43 d high carbon spring steel (annealed form) chemical composition of c-60 grade (as per is:2507) -carbon - 0.55 to 0.60 %manganese - 0.60 to 0.80 %silicon - 0.10 - 0.35 %sulphur - 0.04 % (max)phosphorus - 0.04 % (max) specifications - hardness -generally material in this grade is stocked in fully annealed form with a hardness of 150 - 170 hv vpn. Also as per customer's request different hardness range such as half-hard or full hard can be achieved. Thickness range -0.25 mm up to 5.00 mm width range -5.00 mm up to 400 mm edge -mill edge, sheared edge coil form -material can be supplied in coil form sheet form -material can be supplied in sheet form as well application -auto components such as washers, circlips, dowel pins, carpentry tools, hacksaw blades, electronic tools, clamps, various types of springs, horn parts, etc other equivalent grades - sae standards - sae 1060as per din standards - ck-67as per en standards - en-43 das per japanese standards - jis g 3311 s60c