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Russia GOST 25-20Л Specialsteel Russia TY standard grades and chemical compositions of the high temperature alloy castings and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 25-20Л
Category Class Grade Standard Country Application
Steel GradesSpecialsteel 25-20Л GOST Russia Russia TY standard grades and chemical compositions of the high temperature alloy castings

Chemical composition(mass fraction)(wt.%) of the 25-20Л

C Cr Al Mo Ti Co W Ni Nb Fe B Ce V Zr Mn Si S P
≤0.18 22.00 -26.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ 17.00 -21.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ 0.70 -1.50 0.80 -2.00 ≤0.025 ≤0.025

Mechanical Properties of steel grade 25-20Л

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)
734 (≥) 946 (≥) 44 41 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical Properties of steel grade 25-20Л

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
41 - -     0.44 -  
711 495 - 43.3 132   -  
795 - 23 42.2   421 133

Heat Treatment of steel grade 25-20Л

Heat treated : 1679°C - 1344°C

Technological Curves of steel grade 25-20Л

Cross Reference Table (Equivalent Grade) of 25-20Л

Grade Standard Country Application
25-20Л

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