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Chemical composition Temperature °C - Gruppo …
Quality 16 NiCr4 Technical card According to standard en 10084 : 2008 Lucefin Group Number Chemical composition C% Si% max Mn% P% max S% max Ni% Cr% 0,13-0,19 0,40 0,70-1,00 0,025 0,035 0,80-1,10 0,60-1,00 + + + Product deviations are allowed On request, this steel grade may be supplied with addition of lead (Pb) 16 NiCrS4 n sulphur (S) It can be also supplied calcium (Ca) treated Copper (Cu) max Temperature C Hot-forming Normalizing Core hardening Carbonitriding Carburizing Hardening carburizing surf. Tempering 1150-900 870 air 840 -880 oil-polymer salt bath 750-930 gas 870-950 810-840 oil-polymer salt bath 150 200 Pre-heating welding Stress-relieving after welding Soft annealing Isothermal annealing Spheroidizing End quench hardenability test welding must be carried out on the annealed state and before carburizing 250 550 furnace cooling AC1 AC3 MS * core ** carburizing surface 700 air (HB max 217) 860 furnace cooling to 650, then air (HB 166-217) (HB 156-207) 870 water 735 825 380* 180** Mechanical and physical properties Hot-rolled values obtained on test blanks after core hardening + stress-relieving UNI 7846: 1978.
Quality 16NiCr4 Technical card According to standard EN 10084: 2008 Lucefin Group Number 1.5714 Chemical composition C% Si% max Mn% P% max S% max Ni% Cr% 0,13-0,19 0,40 0,70-1,00 0,025 0,035 0,80-1,10 0,60-1,00
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