the quality of hardened and tempered steel strip
Hadenened and Tempered is the process of heating and cooling of metals to change the steel's physical and mechcanical properties without changing the original shape and size.which is usually associated with increasing the stenght of the steel,but also,quenched and tempered can improve product performance by increasing strength and the toughness and more durable rust resistance.etc. the grades involved this range of hardened and tempered steel strip products are medium &high carbon steel,such as DIN ck67,ck70,ck75,ck80,AISI sae1070,sae1074.etc.
these steels are most commonly produced with rouned edge,slitted edge,surface with polished blue,grey-blue,polished-white,hardness with 40-48hrc.its application mainly is rolling shutter springs,rolling door springs,band springs,flat springs,hand building tools(trowels,putty knife,scrapers,spatulas)bandsaw blade,agriculture tools.and the size(thickness&width) of hardened and tempered is 0.20-2.5mm*10-300mm.
