GRADE ISOSTANDARD

DENSITY(g/cm3)

Bend-resistantStrenghth(N/mm2)

Hardness(HRA)

Performance&Application

YG3 K05 15.2 ≥1230 92.0 Second only to YG3X ingood abrasive resistanceand sensitive to impactand shock. Apply tocontinuous finishingcutting,semi-finishingcutting,fine threading andreaming of non-ferrousmetals and alloy

YG3X K01 15.2 ≥1080 92.5 Best abrasive resistanceamong all tungstencobalt,but weakperformance in impacttoughness. Apply to smallquantity cutting of castiron, non-ferrous metals,alloy, quenched steel andalloy steel. And fit formaking wire-drawing die

YG3A K05 15.1 ≥1250 92.5 Same abrasive resistanceas well as YG3X, with agood red hardness, butsensitive to impact andshock. Apply to finishing,semi-finishing of castiron,non-ferrous metalsand alloy. The workinglife is twice than YG3

YG6 K15-K20 14.9 ≥1420 90.5 Weaker in abrasiveresistance and better inimpact and shockresistance than YG3.Apply to finishing,semi-finishing ofcast-iron,non-ferrrousmetals, chilled alloy steel,as well as drawing of rodor tube made in steel ornon-ferrous metals.

YG6X K10 14.9 ≥1370 91.5 Better in abrasiveresistance than YG3, and

close to YG6 in workingstrength. Apply tofinishing process ofcast-iron, non-ferrousmetals, chilled alloy steeland heat-resistant alloysteel, as well as makingsome wire-drawing die

YG6A K10 14.9 ≥1370 92.0 Fine grain WC alloy,good abrasive resistance.Apply to finishing processof chilled cast-iron,non-ferrous metals andalloy, and seimi-finishingprocess of quenched steeland alloy steel. Betterworking efficiency thanYG6

YG8 K30 14.7 1760 90.0 High strength in use,impack and shockresistance higher thanYG6, but wear resistanceand cutting speedcomparatively lower.Apply to low-speedfinishing process ofcast-iron, non-ferrousmetals and non-metals,and drawing of steel rodand tube, non-ferrous rodand tube. And suitable formaking wear reisistantparts, tool and wearingparts(nozzle, centre,guiding device, kinds ofdies and perforating tools)

YG8C K30 14.5-14.9 2000 88.0 Apply to making impactrotary penetration rockdrill bit and other specialmoulds

YG8A K25-K30 14.7 2000 90.5 Working strength,impack-resistance andshock-resistance betterthan YG8. The same

application as YG8, butaround twice working lifethan YG8

YG11 K35 14.0-14.5 2060 87.0 Good strength in use,apply to making drillinghead, machine’s wearingparts and impact-resistantmold.

YG11C K40 14.0-14.5 2100 86.5 Apply to making drill bitfor drilling ofmedium-hard and hardrock layer, and roller drillteeth

YG13C K40 14.0-14.3 2160 86.0 Apply to making rollerdrill teeth for drillingmedium-hard and hardrock layer, and makingrock drill bit as well.

YG15 K40 13.9-14.2 2160 87.0 Good strength and weakwear-resistance. Apply tomaking high compressionrate mold and drill hit fordrilling of hard rock layer.

GRADE ISOSTANDARD

DENSITY(g/cm3)

Bend-resistantStrenghth(N/mm2)

Hardness(HRA)

Performance&Application

YG18C K40 13.8-14.1 2200 84.0 Aplly to making drill hitfor drilling of medium sofand hard rock layer.

YG20 K40 13.4-13.7 2230 85.0 Apply to making die ofproducing watch parts,leaf spring, battery metalcap, small size-steel ball,crew and nut.

YG20C K40 13.4-13.7 ≥2230 82.0 Apply to making standardbearing, molds which isfor cold heading, coldpunching and coldpressing in tool industry

YG25C K50 12.9-13.1 2520 90-91 Better stamping resistancethan YG20C. Specializedgrade for cold punchingdie, more suitable for thepunching of stainless steel

parts.YN6 14.8-15 1600 89-90 High hardness, good

corrosion resistance andstrong wear-resistance.Apply to makingwear-resistant parts likeseal ring.

YN8 14.6-14.8 1760 92.0 High hardness, goodcorrosion resistance andstrong wear-resistance.Apply to makingwear-resistant parts likeseal ring.

YT5 P10 11.3 ≥1310 92.0 Best strength, impack andshock resistance amongalltungsten-cobalt-titaniumalloy. Apply to roughprocessing of casting,forging piece andstamping parts made ofcarbon steel and alloysteel.

YTFA P10 11.3 ≥1310 92.0 The same application asYT5, and more than twiceworking life than YT5

YT14 P10 11.3 ≥1310 92.0 Second only to YT5 inworking strength andimpack-shock resistance,better than YT5 in wearresistance. Apply tocontinuous cuttingfinishing,, intermittentcutting semi-finishing andfinishing of carbon steeland alloy steel.

YT14A P10 11.3 ≥1310 92.0 Better than YT14 in wearresistance and workingstrength. Apply tofinishing andsemi-finishing ofdifficult-to-machinematerial, such as carbonsteel, high manganese

steel, stainless steel, etc.Around twice workinglife than YT14

YT15 P10 11.3 ≥1310 92.0 Better wear-resistance andweaker impact-shockresistance than YT5.Apply to semi-finishingmedium chip section orfinishing small chipsection for steel, cast-steeland alloy steel.

YT15A P10 11.3 ≥1310 92.0 Better than YT15 in wearresistance and workingstrength. Apply tosemi-finishing andfinishing of steel,cast-steel and alloy steel.Around twice workinglife than YT15.

GRADE ISOSTANDARD

DENSITY(g/cm3)

Bend-resistantStrenghth(N/mm2)

Hardness(HRA)

Performance&Application

YT30 P05 9.5 ≥1080 92.5 Better wear-resistanceand strength, weakerimpact-shock reistancethan YT15. Apply tofinishing of carbon steeland alloy steel, such asfinish-turning,finish-boring lightsection, etc.

YT30A P05 9.5 ≥1080 92.5 Better than YT30 inwear-resistance andstrength. Apply tofinishing of carbon steeland alloy steel. More thantwice working life thanYT30

YW1 M10 13 ≥1300 92.5 Good red hardness andimpact load resistance,good generalityapplication. Apply tofinishing and

semi-finishing ofheat-resistant steel,high-manganese steel,stainless steel andhigh-grade alloy steel, etc.

YW2 M20 12.9 ≥1460 91.0 Second only to YW1 inred hardness, highstrength, good impactload resistance. Apply tofinishing andsemi-finishing ofheat-resistant steel, highmanganese steel, stainlesssteel and high-grade alloysteel, etc.

YW2A M15 12.9 ≥1480 91.5 Good red hardness, highstrength, good impactload resistance, goodgenerality application.Apply to semi-finishingand finishg ofdifficult-to-machinematerials, such asheat-resistant steel, highmanganese steel, stainlesssteel.. And to process ofcast iron.

K01 K01 14.8-15.0 ≥1000 ≥93.5 Micro-grain carbide,apply to cutting of kindsof high hardness metals ornon-metallic materials.

K05 K05 14.5-14.7 ≥1300 ≥93.0 Micro-grain carbide,better toughness thanK01, the same applicationas K01

K10 K10 14.2-14.4 ≥1500 ≥92.5 Micro-grain carbide,apply to cutting of kindsof high hardness metals ornon-metallic materials.

K20 K20 14.0-14.2 ≥1700 ≥92.0 Micro-grain carbide,better toughness thanK01, the same applicationas K01

K30 K30 13.8-14.0 ≥2000 ≥91.5 Micro-grain carbide,

special materials for sawblade and milling cut.Apply to rough finishingof stainless steel and castiron.

GRADE ISOSTANDARD

DENSITY(g/cm3)

Bend-resistantStrenghth(N/mm2)

Hardness(HRA)

Performance&Application

K40 K40 13.6-13.8 ≥2200 ≥90.5 Micro-grain carbide,better toughness andweaker wear-resistancethan YP05. Apply tofinishing of quenchedsteel

YP05 P05 13.3-14.2 ≥1200 ≥93.0 Micro-grain carbide.Apply to finishing ofquenched steel, idealmaterial for making wiperinsert.

YP10 P10 13.1-13.8 ≥1400 ≥92.5 Micro-grain carbide,better toughness andweaker wear-resistancethan YP08.Apply tofinishing of quenchedsteel

YP20 P20 12.8-13.4 ≥1600 ≥92.0 Micro-grain carbide.Apply to semi-finishingand finishing of steel.Long working life.

YP30 P30 12.6-13.1 ≥1800 ≥91.5 Micro-grain carbide.Apply to semi-finishingand finishing of steel

YP40 P40 12.4-12.9 ≥2000 ≥90.5 Micro-grain carbide.Apply to continuousrough feed finishing ofsteel billet

TN05 R05 6.1-6.4 ≥1000 ≥92.5 Titanium carbonitridebased cementedcarbide(Cermet). Apply tocutting of steel, cast iron,aluminium alloy under theallowed speed range from30 meter per minute to250 meter per minute.

TN15 R15 6.2-6.5 ≥1200 ≥91.5

TN25 R25 6.3-6.6 ≥1400 ≥90.5

Working life is 1-4 timesimproved than WC basedcarbide Roughness ofwork piece is 1-2improved by usingCermet than WC basedcarbide.