CHEMICAL COMPOSITION

EST DIN ASTM CHEMICAL COMPOSITION PROPERTY APPLICATION
C Si Mn P≤ S≤ Cr Mo V W
YTL122 1.2379 D2 1.45-1.60 0.10-0.60 0.20-0.60 0.030 0.030 11.0-13.0 0.70-1.00 0.70-1.00 - Ledeburitic High Carbon High Chromium steel, excellent wear resistance, good toughness, High hardenability, dimensional stability and high surface hardness Blanking Dies, Drawing Dies, Forming Rolls, Gauges , Thread Rolling Dies, Slitters, Shear Blades, Punches, Stamping Tools
YTL120 1.2080 D3 1.90-2.20 0.10-0.60 0.20-0.60 0.030 0.030 11.0-13.0 - - - Ledeburitic High Carbon High Chromium steel, very high wear resistance, High hardenability, Virtually no deformation during hardening Trimming Dies, Blanking Dies for paper, Shear Blades, Woodworking Tools, Profi le Rolls ,
YTO1 1.2510 O1 0.90-1.05 0.15-0.35 1.00-1.20 0.030 0.030 0.50-0.70 - 0.05-0.15 0.50-0.70 High resistance to cracking, excellent machinability, small change in shape during heat treatment Blanking Dies, Stamping Dies, Threading Tools, Working Tools
YTL28 CHIPPER 1.2631 Modified A8 Modified 0.50 0.90 0.35 0.030 0.030 8.00 1.50 0.40 < 1.75 High wear resistance, strong toughness, small change in shape during heat treatment wood chipper knives, slitter knives, scrap shears, plastic granulator knives, tire shredding knives, shear blades, planer knives,
YD11 1.2550 S1 0.55-0.65 0.70-1.00 0.15-0.45 0.030 0.030 0.90-1.20 - 0.10-0.20 1.70-2.20 Shock resisting, good toughness with high hardenability Blanking Dies for Sheet Metal, Trimming Dies, Punches, Ejectors, Shear Blades, pneumatic chisels.
YD17 1.2357 S7 0.45-0.55 0.20-1.00 0.20-0.80 0.030 0.030 3.00-3.50 1.30-1.80 ≤ 0.35 - Shock resisting, High wear resistance, high hardenability with high toughness. Impact resisting Tools, Chisels, Hot punching & shearing, forming and perforating dies,
YTL31 1.2327 Bohler K310 0.85-1.05 0.25-0.45 0.40-0.60 0.030 0.030 1.70-2.00 0.20-0.35 0.05-0.20 - Shell Hardenable, high wear resistance, high hardness Standards rolls of all diameters for cold rolling, back up rolls, straightening and work rolls

HEAT TREATMENT

EST DIN ASTM Density (g/cm3) HEAT TREATMENT
Soft Annealing °C Annealed Hardness HB Hardening
From °C		 Quenching In Hardness
After Quenching
HRC		 Tempering °C
100°C 200°C 300°C 400°C 500°C 550°C
HRC HRC HRC HRC HRC HRC
YTL122 1.2379 D2 7.70 830-870 Max. 245 1010-1050 OIL / AIR 62-64 63 61 58 58 58 56
YT120 1.2080 D3 7.70 800-840 Max. 245 950-980 OIL / AIR for thickness up to 30 mm 64-65 63 62 59 57 54 44
YTO1 1.2510 O1 7.85 740-770 Max. 220 780-820 Oil / Hot Bath 180-220 °C 64 64 62 57 53 - -
YTL28 1.2631 Modified A8 Modified 7.85 820-870 Max. 245 1020-1050 OIL / AIR 61 60 57 56 460°C
58		 55 -
YD11 1.2550 S1 7.85 710-750 Max. 230 910-950 Oil / Hot Bath 180-220 °C 62 62 60 57.5 53 - -
YD17 1.2357 S7 7.75 810-850 Max. 230 940-980 Air / OIL 57 - 57 54 53 51 49
YTL31 1.2327 Bohler K310 7.80 710-750 Max. 250 710-750 Water 62-64 64 180°C
62		 56 52 - -