Tungsten Carbide Rods Grade Chart This tungsten carbide rods grade chart sorts all common WC-Co alloy grades for unground carbide blank rods and precision ground H6/H7/H8 carbide bars. Different cobalt percentage directly affects hardness, bending strength, wear resistance and impact resistance, which determines the suitable machining scenarios of your carbide rods. Tungsten Carbide Rod Grade Comparison Table 表格 Grade Cobalt Content Hardness HRA Bending Strength MPa Core Feature Recommended Application YG6 6% Co 92.0~92.8 1800 High wear resistance, medium toughness Finishing end mills, drill bits for steel, cast iron YG8 8% Co 90.5~91.5 2200 Balanced hardness & toughness General metal cutting, semi-finishing tools YG10 10% Co 89.0~90.0 2600 High impact resistance, anti-chipping Interrupted cutting, rough machining tools YG12 12% Co 87.5~88.5 3000 Ultra high toughness Heavy roughing, hard alloy mold pins YG6X 6% Fine Grain Co 92.8~93.5 1650 Super high wear resistance Ultra-fine finishing, graphite/CFRP machining How To Choose The Right Grade For Carbide Rods For finishing & high wear demand: Pick low cobalt grades (YG6 / YG6X), higher hardness for long tool life. For general semi-finishing steel machining: YG8 is the universal balanced grade for most tool manufacturers. For roughing & interrupted cutting with shock load: Choose high cobalt grades (YG10 / YG12) to avoid edge chipping. Fine grain YG6X fits composite material, graphite and precision micro cutting tools. Chinese YG Series Base Grades (WC-Co) Grade Co% Grain Size Density g/cm³ Hardness HRA Hardness HV30 TRS (MPa) ISO Equiv. ANSI (C-Class) YG3 3.0 F-M 15.10-15.30 92.5 1950 ≥1500 K01 C4 YG3X 3.0 UF 15.10-15.30 93.6 2050 ≥1400 K01 C4 YG6 6.0 M 14.80-15.00 91.1 1700 ≥1800 K10-K20 C2 YG6X 6.0 F 14.80-14.97 92.4 1870 ≥1700 K10-K15 C3 YG6A 6.0* F 14.80-15.05 92.2 1850 ≥1750 K10 C3 YG8 8.0 M 14.65-14.85 90.0 1550 ≥2100 K20-K30 C2 YG8C 8.0 C 14.65-14.85 89.5 1480 ≥2200 K20-K30 — YG10 10.0 M 14.40-14.60 89.2 1420 ≥2400 K30-K40 C10 YG10X 10.0 F 14.40-14.60 91.0 1600 ≥2300 K20-K30 — YG11C 11.0 C 14.20-14.40 88.4 1350 ≥2600 K30-K40 C11 YG15 15.0 M-C 13.90-14.10 87.6 1250 ≥2800 K40 C12 YG20 20.0 M-C 13.40-13.60 85.0 1100 ≥2900 K50 C13 YG20C 20.0 C 13.40-13.60 83.5 1020 ≥3100 K50 C13 YG25 25.0 C 13.00-13.20 82.5 950 ≥3000 — C14 * YG6A contains trace amounts of TaC/NbC additives. Grain Size Codes: UF = Ultra-Fine (<0.5μm), F = Fine (0.5-1.4μm), M = Medium (1.4-3.4μm), C = Coarse (>3.4μm). Related Carbide Rod Series Links All Tungsten Carbide Rods Unground Carbide Blank Rods Ground H6 Solid Carbide Rod Ground H7 Solid Carbide Rod Ground H8 Solid Carbide Rod
