25-20Л Stainless Steels

25-20Л - Specification & Application

Russia TY standard grades and chemical compositions of the high temperature alloy castings

Chemical composition(wt.%) of 25-20Л grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.18
Cr 22.00 26.00
Al - -
Mo - -
Ti - -
Co - -
W - -
Ni 17.00 21.00
Nb - -
Fe - -
B - -
Ce - -
V - -
Zr - -
Mn 0.70 1.50
Si 0.80 2.00
S - 0.025
P - 0.025

25-20Л - Detail

Russia TY standard grades and chemical compositions of the high temperature alloy castings

Mechanical properties of grade 25-20Л

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)
298 (≥) 558 (≥) 31 34 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 411

Physical properties of grade 25-20Л

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
665 (≥) 237 (≥) 34 34 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 142
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
746 852 765

Equivalent Grade

Equivalent Products

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