Tungsten steel (carbide)
Type No. Grain density Hardness Flexural strength Use
Breed Grode Grain Censity Hardness T.RS Application
 g/cm3 HRA HV N/mm2
Wear-resistant series M10 Medium 19.5 93 1900 ≥1000 Very high hardness, very good wear resistance, mainly used for small stress applications, such as nozzles, drawing die, drawing die mandrel, etc.
 M11 Medium 15.1 91.5 1630 ≥1100
 M15 Medium 15 90.5 1500 ≥1350
 M20 Medium 14.9 89.5 1400 ≥1500 High hardness, good wear resistance, mainly used for drawing die, powder molding die, textile wear parts, valve parts, bearing parts, etc.
 M23 Medium 14.6 91 1560 ≥1800
 M30 Medium 14.7 89.5 1400 1600 Commonly used deep-drawing forming and wearing parts, also for cold roll, powder forming die
 M31 Medium 14.5 91 1560 2000 Dedicated to ceramic floor tiles and refractory moulds
 M33 Medium 14.8 91 1560 1800 Specially applicable for deep drawing and non-magnetic series of moulds W10 Medium& 14 90 1560 1800 Plastic magnetic extrusion die, mechanical seal ring for nuclear power plant
 W15 Medium >6.0 87 1100 1800 Anti gasification, corrosion resistant parts, glass cutters for battery die burners, tungsten & molybdenum holders
 W20 Medium 14.1 88 1102 2600 Magnetic Field Mold and Precision Instrument Wear Parts
 W30 Medium 13.7 86 1000 2900 Common Magnetic Field Molds
 W40 Medium 13 82 730 3000 Magnetic Field Punching & Tape Cutters Fine Particle Series X10 Small 14.6-15.0 92-93 1730-1900 ≥1100 For Smaller Stress Applications: Sizing Dies, Rolls, Powder Forming, Extruding Die Cores Shafts, nozzles, etc.
 X30 small 14.3-14.5 91-92 1560-1730 ≥1800 sizing die, draw die, powder compact die, embossing tool
 X50 Small 13.8-14.1 89-90 1360-1460 ≥2200 0.8 or less blanking die, stamping die, extruded deep drawn sheet wire roll, large powder compact die
Carbide grade, performance and purpose grade equivalent to performance
ISO Density Bending Strength Hardness
Group code G/Cm3 N/mm2 HRA
YG3 K01 14.9-15.3 ≥1180 ≥90.5 Fine and semi-finish cars for continuous cutting of cast iron, non-ferrous metals and their alloys and non-alloy materials. And can stretch steel, non-ferrous metals and their wire, also suitable for sandblasting nozzles
YG3X K01 15.1-15.4 ≥1300 ≥91.5
YG6X K10 14.8-15.1 ≥1560 ≥91.0 Suitable for processing of chilled cast iron, alloy cast iron, heat resistant steel, alloy steel. Also suitable for ordinary cast iron processing.
YG6A K10 14.7-15.1 ≥1580 ≥91.0
YG6 K20 14.7-15.1 ≥1670 ≥89.5 Suitable for finishing and semi-finishing of cast iron, non-ferrous metals, alloys and non-alloy materials, also used for drawing of steel, non-ferrous metal wire, geological electric drill, steel drill bit, etc.
YG8 K20-K30 14.6-14.9 ≥1840 ≥89 Suitable for rough machining of cast iron, non-ferrous metals, non-metallic materials, stretching of steel and non-ferrous metals, pipe, geological drills, machine tools and wear parts.
YS2T K30-M30 14.5-14.8 ≥2300 ≥91.5 For low-speed rough machining, milling of titanium alloys and heat-resistant alloys, cutting blades and taps are preferred.
YG10HT K30-M30 14.4-14.6 ≥2100 ≥91.5
YB06 K05-K10 14.9-15.0 ≥3000 ≥93.5 Suitable for making φ3.2-6.3mm PCB large diameter drill,φ0.8-3.2mmPCB
Micro-drills, micro-milling cutters, reamers and other hard alloy tools.
YB10 K05-K10 14.4-14.5 ≥3000 ≥91.8 For ordinary steel, cast iron, stainless steel, heat-resistant steel, nickel-base and titanium alloys and other materials. Recommended for general-purpose tool materials such as twist drills, end mills, taps, and gun drills.
YB12 K05-K10 14.0-14.1 ≥3200 ≥92.0 For titanium alloy, heat-resistant alloy, stainless steel, hardened steel, gray cast iron, glass fiber reinforced plastics and other materials processing. It is used to make carbide tools such as various end mills and ball end mills.
YK25 K40 14-.3-14.6 ≥2100 ≥86.5 Suitable for inserts to make drill bits for heavy rock drills: such as deep hole drilling, rock drill bits, etc.
YG11C K40 14.0--14.4 ≥2060 ≥86.0
YG15 K40 13.9-14.1 ≥2020 ≥86.5 For rock drilling in hard rock formations, steel bars with high compression rates, pipe drawing, punching tools, cabinet cores for powder metallurgy automatic press dies, etc.
YG16C  13.7-14.1 ≥2400 ≥84.0 Forging die for general impact resistance, red die, etc.
YGH40  13.5-13.9 ≥2450 ≥83.0 Mainly used for red die making.
YG20  13.4-14.8 ≥2480 ≥83.5 Applicable for making impactless moulds: such as stamping watch parts, battery cases, small nuts, etc.
YG20C  13.4-14.8 ≥2480 ≥82.5 Production of cold heading, cold punching, and cold-pressing dies for standard parts, bearings, etc.
YLH40.5  13.3-13.6 ≥2540 ≥82 Generally used for making screws and stainless steel screws
Type No. Grain density Hardness Flexural strength Use
Breed Grode Grain Censity Hardness T.RS Application
 g/cm3 HRA HV N/mm2
Wear-resistant series M10 Medium 19.5 93 1900 ≥1000 Very high hardness, very good wear resistance, mainly used for small stress applications, such as nozzles, drawing die, drawing die mandrel, etc.
 M11 Medium 15.1 91.5 1630 ≥1100
 M15 Medium 15 90.5 1500 ≥1350
 M20 Medium 14.9 89.5 1400 ≥1500 High hardness, good wear resistance, mainly used for drawing die, powder molding die, textile wear parts, valve parts, bearing parts, etc.
 M23 Medium 14.6 91 1560 ≥1800
 M30 Medium 14.7 89.5 1400 1600 Commonly used deep-drawing forming and wearing parts, also for cold roll, powder forming die
 M31 Medium 14.5 91 1560 2000 Dedicated to ceramic floor tiles and refractory moulds
 M33 Medium 14.8 91 1560 1800 Specially applicable for deep drawing and non-magnetic series of moulds W10 Medium& 14 90 1560 1800 Plastic magnetic extrusion die, mechanical seal ring for nuclear power plant
 W15 Medium >6.0 87 1100 1800 Anti gasification, corrosion resistant parts, glass cutters for battery die burners, tungsten & molybdenum holders
 W20 Medium 14.1 88 1102 2600 Magnetic Field Mold and Precision Instrument Wear Parts
 W30 Medium 13.7 86 1000 2900 Common Magnetic Field Molds
 W40 Medium 13 82 730 3000 Magnetic Field Punching & Tape Cutters Fine Particle Series X10 Small 14.6-15.0 92-93 1730-1900 ≥1100 For Smaller Stress Applications: Sizing Dies, Rolls, Powder Forming, Extruding Die Cores Shafts, nozzles, etc.
 X30 small 14.3-14.5 91-92 1560-1730 ≥1800 sizing die, draw die, powder compact die, embossing tool
 X50 Small 13.8-14.1 89-90 1360-1460 ≥2200 0.8 or less blanking die, stamping die, extruded deep drawn sheet wire roll, large powder compact die
Carbide grade, performance and purpose grade equivalent to performance
ISO Density Bending Strength Hardness
Group code G/Cm3 N/mm2 HRA
YG3 K01 14.9-15.3 ≥1180 ≥90.5 Fine and semi-finish cars for continuous cutting of cast iron, non-ferrous metals and their alloys and non-alloy materials. And can stretch steel, non-ferrous metals and their wire, also suitable for sandblasting nozzles
YG3X K01 15.1-15.4 ≥1300 ≥91.5
YG6X K10 14.8-15.1 ≥1560 ≥91.0 Suitable for processing of chilled cast iron, alloy cast iron, heat resistant steel, alloy steel. Also suitable for ordinary cast iron processing.
YG6A K10 14.7-15.1 ≥1580 ≥91.0
YG6 K20 14.7-15.1 ≥1670 ≥89.5 Suitable for finishing and semi-finishing of cast iron, non-ferrous metals, alloys and non-alloy materials, also used for drawing of steel, non-ferrous metal wire, geological electric drill, steel drill bit, etc.
YG8 K20-K30 14.6-14.9 ≥1840 ≥89 Suitable for rough machining of cast iron, non-ferrous metals, non-metallic materials, stretching of steel and non-ferrous metals, pipe, geological drills, machine tools and wear parts.
YS2T K30-M30 14.5-14.8 ≥2300 ≥91.5 For low-speed rough machining, milling of titanium alloys and heat-resistant alloys, cutting blades and taps are preferred.
YG10HT K30-M30 14.4-14.6 ≥2100 ≥91.5
YB06 K05-K10 14.9-15.0 ≥3000 ≥93.5 Suitable for making φ3.2-6.3mm PCB large diameter drill,φ0.8-3.2mmPCB
Micro-drills, micro-milling cutters, reamers and other hard alloy tools.
YB10 K05-K10 14.4-14.5 ≥3000 ≥91.8 For ordinary steel, cast iron, stainless steel, heat-resistant steel, nickel-base and titanium alloys and other materials. Recommended for general-purpose tool materials such as twist drills, end mills, taps, and gun drills.
YB12 K05-K10 14.0-14.1 ≥3200 ≥92.0 For titanium alloy, heat-resistant alloy, stainless steel, hardened steel, gray cast iron, glass fiber reinforced plastics and other materials processing. It is used to make carbide tools such as various end mills and ball end mills.
YK25 K40 14-.3-14.6 ≥2100 ≥86.5 Suitable for inserts to make drill bits for heavy rock drills: such as deep hole drilling, rock drill bits, etc.
YG11C K40 14.0--14.4 ≥2060 ≥86.0
YG15 K40 13.9-14.1 ≥2020 ≥86.5 For rock drilling in hard rock formations, steel bars with high compression rates, pipe drawing, punching tools, cabinet cores for powder metallurgy automatic press dies, etc.
YG16C  13.7-14.1 ≥2400 ≥84.0 Forging die for general impact resistance, red die, etc.
YGH40  13.5-13.9 ≥2450 ≥83.0 Mainly used for red die making.
YG20  13.4-14.8 ≥2480 ≥83.5 Applicable for making impactless moulds: such as stamping watch parts, battery cases, small nuts, etc.
YG20C  13.4-14.8 ≥2480 ≥82.5 Production of cold heading, cold punching, and cold-pressing dies for standard parts, bearings, etc.
YLH40.5  13.3-13.6 ≥2540 ≥82 Generally used for making screws and stainless steel screws