Database of Steel and Alloy (Marochnik)

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Metals -> High-temperature or heat-resistant steel and alloy -> Relaxation-resistant steel

Characteristics of the material 25KH1M1F   ( 25H1M1F,   25󤯳 ).

Material : 25KH1M1F   ( 25H1M1F,   25󤯳 )
Classification : Relaxation-resistant steel


Chemical composition in % of the material 25KH1M1F   ( 25H1M1F,   25󤯳 ) .
C Si Mn Ni S P Cr Mo V Cu
0.22 - 0.290.17 - 0.370.4 - 0.7max   0.26max   0.025max   0.031.5 - 1.80.6 - 0.80.15 - 0.3max   0.2


Temperature of critical points of the grade 25KH1M1F   ( 25H1M1F,   25󤯳 ).
Ac1 = 770 - 805 ,      Ac3(Acm) = 840 - 880


Mechanical properties under =20o of the material 25KH1M1F   ( 25H1M1F,   25󤯳 ) .
Assortment Dimension Direct. s sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Forging max thickness 300   650 450 16 50600Normalizing and high drawing


Physical properties of the material 25KH1M1F   ( 25H1M1F,   25󤯳 ) .
T E 10- 5 a 10 6 l r C R 10 9
Grade MPa 1/Grade Watt/(m稧rade) kg/m3 J/(kg稧rade) Ohm穖
20 2.16     7820   233
100 2.14 10.9 40.6 7800   283
200 2.1 12 39.8 7770   349
300 2.05 12.7 39 7740   428
400 1.97 13.65 37.7 7700   519
500 1.86 13.72 36 7670   633
600 1.71 13.82 33.9 7640   746
700   14 31 7600   862
T E 10- 5 a 10 6 l r C R 10 9



Specification :
Mechanical properties :
s - Tensile strength , [MPa]
sT - Yield stress, [MPa]
d5 - Specific elongation at fracture , [ % ]
y - Reduction of area , [ % ]
KCU - Impact strength , [ kJ / m2]
HB - Brinell hardness , [MPa]

Physical properties :
T - Test temperature , [Grade]
E - Young modulus , [MPa]
a - Coefficient of linear expansion (range 20o - T ) , [1/Grade]
l - Termal (heat) condition coefficient , [Watt/(m稧rade)]
r - Density , [kg/m3]
C - Specific heat ( range 20o - T ), [J/(kg稧rade)]
R - Electrical resistance , [Ohm穖]

Database of steels and alloys (Marochnik) contains information about chemical composition and properties of 1500 steels and alloys (stainless steel, alloy steel, carbone steel, structural steel, tool steel, cast iron, aluminum alloy, titanium alloy, copper alloy, nickel alloy, magnesium alloy and others).
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