Grades | Tool Die Steels | Stellite 21

Whole Stellite 21

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Stellite 21 Application:Stellite alloy

Chemical composition(mass fraction)(wt.%) of the Stellite 21
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

Mechanical properties of grade Stellite 21

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
756 (≥) 847 (≥) 33 41 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

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
112 (≥) 951 (≥) 21 14 43 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
- - -
666 154 269 - - -

Stellite 21 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