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ГОСТ 25-20Л Details

25-20Л

ГОСТ 25-20Л Standard Download

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25-20Л Application:High temperature alloy castings
Category Type Grade Designations
Grades Special Alloy 25-20Л Russia - ГОСТ ,

Chemical composition % of the ladle analysis of grade 25-20Л

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%)
Max 0.18 0.8-2.0 0.7-1.5 Max 0.025 0.025 22.0- 26.0 17.0- 21.0
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)
578 (≥) 345 (≥) 22 22 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 213
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
215 (≥) 651 (≥) 23 13 31 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
263 195 296
25-20Л 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
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
25-20Л
Russia TY standard grades and chemical compositions of the high temperature alloy castings

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