Grade : 15Kh1M1F ( 15Х1М1Ф )
Classification :
Low alloy high-temperature steel
Chemical composition in % for grade 15Kh1M1F ( 15Х1М1Ф )
C Si Mn Ni S P Cr Mo V Cu
0.1 – 0.16 0.17 – 0.37 0.4 – 0.7 max 0.25 max 0.025 max 0.025 1.1 – 1.4 0.9 – 1.1 0.2 – 0.25 max 0.25
Temperature of critical points for grade 15Kh1M1F ( 15Х1М1Ф ).
Ac1 = 770 – 819 , Ac3 (Acm ) = 905 – 975 , Ar3 (Arcm ) = 855 – 908 , Ar1 = 775 – 818
Mechanical properties under Т=20o С for grade 15Kh1M1F ( 15Х1М1Ф )
Assortment Dimension Direct. s в s T d 5 y KCU Heat treatment
– mm – MPa MPa % % kJ / m2 –
Pipe longitudinal 500 320 18 50 500
Pipe dihedral 500 320 16 45 400
Physical properties for grade 15Kh1M1F ( 15Х1М1Ф )
T E 10– 5 a 10 6 l r C R 10 9
Grade MPa 1/Grade Watt/(m·Grade) kg/m3 J/(kg·Grade) Ohm·m
20 2.14 7800
100 2.08 11.2 41.58
200 2.01 11.7 40.3
300 1.94 12.5 38.6
400 1.87 13 36.9
500 1.77 13.5 32.7
600 1.69 13.7 34
700 1.6
T E 10– 5 a 10 6 l r C R 10 9
Equivalent steels for grade 15Kh1M1F ( 15Х1М1Ф )
Warning! Indicated both exact and nearest equivalents.
Types of delivery of grade 15Kh1M1F ( 15Х1М1Ф )
B03 – Metal forming treatment. Forgings
Specification :
Mechanical properties :
s в – Tensile strength , [MPa]
s T – Yield stress, [MPa]
d 5 – 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·Grade)]
r – Density , [kg/m3 ]
C – Specific heat ( range 20o – T ), [J/(kg·Grade)]
R – Electrical resistance , [Ohm·m]
15Kh1M1F ( 15Х1М1Ф ) – Low alloy high-temperature steel: chemical composition, mechanical and physical properties, hardness
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