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K30Application:Carbide for cutting tools
CategoryTypeSteel gradeStandardCountry
Grades Special Alloy K30JISJapan

Chemical composition%of the ladle analysis of gradeK30

W(%)Co(%)Other(%)
89-94 6-11 Ti,Ta(Nb)(%):0-3
K30
Hardness quartile HRA: 88
Bending strength frequency/MPa:1471
Mechanical properties of gradeK30
Proof strength
Rp0.2(MPa)
Tensile strength
Rm(MPa)
Impact energy
KV(J)
Elongation at fracture
A(%)
Reduction in cross section on fracture
Z(%)
As-Heat-Treated ConditionBrinell hardness(HBW)
727(≥)671(≥)114442Solution and Aging,Annealing,Ausaging,Q+T,etc444
Physical properties of gradeK30
PropertyDensity
kg/dm3
Temperature T
°C/F
Specific heat
J/kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
557(≥)287(≥)142421Solution and Aging,Annealing,Ausaging,Q+T,etc342
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0)N/mm2
Creep rupture strength
(10000h)
(Rp1,0)N/mm2
656854479
K30Range of products
Product typeProductsDimensionProcessesDeliver Status
Plates/SheetsPlates/Sheets0.08-200mm(T)*W*LForging,hot rolling and cold rollingAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Steel BarRound Bar,Flat Bar,Square BarΦ8-1200mm*LForging,hot rolling and cold rolling,CastBlack,Rough Turning,Shot Blasting,
Coil/StripSteel Coil/Steel Strip0.03-16.0x1200mmCold-Rolled&Hot-RolledAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Pipes/TubesSeamless Pipes/Tubes,Welded Pipes/TubesOD:6-219mm x WT:0.5-20.0mmHot extrusion,Cold Drawn,WeldedAnnealed,Solution and Aging,Q+T,ACID-WASHED
Cross Reference Table(Equivalent Grade)
GradeStandardCountryApplication
K30960JISJapan
K30960

Relevant products

K30 Steel Stock

Steel gradeDimensionShapeUnitQuantityDelivery stateQuery
UNS K30960(VIM+ESR) Bright Round BarDia.22mmRound BarKgs50Hot-Rolled+Annealed+blackEnquiry

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