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25MnCrSil IS Application:Alloy structural steel
Category Type Steel grade Standard Country
Grades Special Alloy 25MnCrSil IS STAS/SR Romania

Chemical composition % of the ladle analysis of grade 25MnCrSil IS

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) Cu(%) Ti(%)
0.22-0.28 0.90-1.20 0.80-1.10 0.035 0.020-0.040 0.80-1.10 0.3 0.15 0.3 0.02
25MnCrSil IS
Mechanical properties of grade 25MnCrSil IS
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)
839 (≥) 888 (≥) 42 43 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 121
Physical properties of grade 25MnCrSil IS
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
849 (≥) 624 (≥) 32 31 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 313
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
364 143 136
25MnCrSil IS 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
Discaloy STAS/SR Romania
Special Purpose Alloys ("Superalloys")
X8CrNiS18 STAS/SR Romania
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1.4818 STAS/SR Romania
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X9CrNiSiNCe21-11-2 STAS/SR Romania
Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel
1.4835 STAS/SR Romania
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X15CrNiSi20-12 STAS/SR Romania
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1.4828 STAS/SR Romania
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X15CrNiSi25-4 STAS/SR Romania
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1.4821 STAS/SR Romania
Heat resisting steels and nickel alloys
X15CrNiSi25-21 STAS/SR Romania
Steel wire and wire products - Steel wire for ropes - Part 4: Stainless steel wire

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