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K30 Application:Carbide for cutting tools
Category Type Steel grade Standard Country
Grades Special Alloy K30 JIS Japan

Chemical composition % of the ladle analysis of grade K30

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 grade K30
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 Condition Brinell hardness (HBW)
764 (≥) 797 (≥) 21 23 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 414
Physical properties of grade K30
Property Density
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
293 (≥) 755 (≥) 43 32 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 114
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
365 772 448
K30 Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
K30960 JIS Japan
K30960

Relevant products

K30 Equivalent Grade Stock

Steel grade Dimension Shape Unit Quantity Delivery state Query
UNS K30960(VIM+ESR) Bright Round Bar Dia.22mm Round Bar Kgs 50 Hot-Rolled+Annealed+black Enquiry

Enquiry