High Carbon Spring Steel
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Grade: c-40 en-8 mc 11 high carbon spring steel (annealed form) chemical composition of c-40 grade (as per is:2507) - carbon - 0.35 to 0.45 % manganese - 0.50 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 140 - 160 hv vpn. Also as per customer's request different hardness range such as half-hard or full hard can be achieved. Thickness range - 0.20 mm up to 4.00 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 - hair clips, fasteners, clutch plates, hose clamps, measuring tapes, cyclemotor chains, etc. Other equivalent grades - sae standards - sae 1040 as per din standards - ck-40 as per en standards - en-8 as per japanese standards - jis g 3311 s40