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Description

USA AISI R20500 Specialsteel Chromium-Nickel alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: R20500
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel R20500 Precipitation-Hardening AISI USA Chromium-Nickel alloy

Chemical composition(mass fraction)(wt.%) of the R20500

C Si Mn Cr Ni Mo Co W Al Cu Ti Fe Nb
≤0.12 ≤0.30 ≤0.80 ≤19.00 ≤14.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤remaining ≤1.60

Mechanical Properties of steel grade R20500

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)
998 (≥) 445 (≥) 31 24 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade R20500

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
12 - -     0.22 -  
594 969 - 22.3 213   -  
129 - 33 24.2   443 441

Heat Treatment of steel grade R20500

Heat treated : 1485°C - 1199°C

Technological Curves of steel grade R20500

Cross Reference Table (Equivalent Grade) of R20500


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