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EN32    080A15  Technical Data EN32 is a carbon case hardening steel. Components when carburised have a core strength range of 430-490 N/mm2 , with a hard wearing surface. TYPICAL ANALYSIS C. Si Mn. 0.15% 0.25% 0.80% Heat Treatment: Blank carburise at a temperature between 880°C and 930°C. Refine at a temperature of 970°C to 900°C, cool in air oil or water. Harden in water from 760°C to 780°C. Tempering: Tempering is recommended for stress relief and maximum case toughness. Tempering range from 150°C to 200°C .                                                                  Mechanical Properties: Tensile Strength Elongation Impact Impact Test Piece Rm N/mm2 per cent 5.665ÖSo  Izod J KCV J Size 490 460 430 16 16 18 30 30 30 35 35 35 13 19 29