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Whole Stellite 21 Details

Stellite 21 Application:Stellite alloy

Category Type Grade Designations
Grades Tool Die Steels Stellite 21 - ,

Chemical composition(wt.%) of Stellite 21 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.20 0.30
Si - 1.00
Mn - 1.00
Cr 25.00 29.00
Ni 1.75 3.75
Mo 5.00 6.00
Co remaining -
W - -
Fe - 3.00
B - 0.007
Stellite alloy

Mechanical properties of grade Stellite 21

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)
739 (≥) 275 (≥) 31 21 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical properties of grade Stellite 21

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
884 (≥) 751 (≥) 44 13 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 123
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
847 595 674

Stellite 21 - Form of Supply

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
Stellite 21 Whole Whole
Stellite alloy

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