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Stellite 21

Description

Stellite 21 Stellite alloy and Stellite 21 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: Stellite 21

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

C(%) Si(%) Mn(%) Cr(%) Ni(%) Mo(%) Co(%) B(%) Other(%)
0.20-0.30 1.0 1.0 25.0-29.0 1.75-3.75 5.0-6.0 remaining Max 0.007 Fe:Max 3.0

Mechanical Properties of steel grade Stellite 21

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
874 (≥) 627 (≥) 43 44 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical Properties of steel grade Stellite 21

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
22 - -     0.13 -  
749 221 - 24.3 232   -  
534 - 44 32.2   424 343

Heat Treatment of steel grade Stellite 21

Heat treated : 1195°C - 1332°C

Technological Curves of steel grade Stellite 21

Cross Reference Table (Equivalent Grade) of Stellite 21

Grade Standard Country Application
Stellite 1 Stellite USA Stellite alloy
Stellite 3 Stellite alloy
Stellite 3PM Stellite alloy
Stellite 4 Stellite alloy
Stellite 6 Stellite alloy
Stellite 6KC Stellite alloy
Stellite 6PM Stellite alloy
Stellite 7 Stellite alloy
Stellite 8 Stellite alloy
Stellite 12 Stellite alloy
Stellite 12P Stellite alloy
Stellite 19 Stellite alloy
Stellite 20 Stellite alloy
Stellite 21 Stellite alloy
Stellite 23 Stellite alloy
Stellite 25 Stellite alloy
Stellite 27 Stellite alloy
Stellite 30 Stellite alloy
Stellite 31 Stellite alloy
Stellite 98M2 Stellite alloy

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