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CU-2 Application:W-Ta-Nb-Co class carbide
Category Type Steel grade Standard Country
Grades Special Alloy CU-2 AISI USA

Chemical composition % of the ladle analysis of grade CU-2

C(%) W(%) Co(%) Nb(%) Ta(%)
5.8 86.3 5.8 0.3 1.8
CU-2
Density / (g/cm ^ 3) : 14.80
Hardness HRC: 92.0
σ bb/MPa: 1760
Grain size/μ m: 2 ~ 3
Use for example: can be used to cast iron and the iron materials and half of the rough finished finishing
Mechanical properties of grade CU-2
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)
688 (≥) 438 (≥) 21 31 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 421
Physical properties of grade CU-2
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
279 (≥) 842 (≥) 14 23 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 222
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
492 494 463
CU-2 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

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