Characteristics of the material 20KHM ( 20HM, 20ХМ ).
Material :
20KHM ( 20HM, 20ХМ )
Classification :
Alloy structurall steel
Chemical composition in % of the material 20KHM ( 20HM, 20ХМ ) .
C
Si
Mn
S
P
Cr
Mo
0.15 - 0.25
0.17 - 0.37
0.4 - 0.7
max 0.035
max 0.035
0.8 - 1.1
0.15 - 0.25
Mechanical properties under Т=20oС of the material 20KHM ( 20HM, 20ХМ ) .
Assortment
Dimension
Direct.
sв
sT
d5
y
KCU
Heat treatment
-
mm
-
MPa
MPa
%
%
kJ / m2
-
Bar
Ж 15
800
600
12
50
Guenching 880oC, oil, Drawing 500oC,
Brinell hardness of the material 20KHM ( 20HM, 20ХМ ) (annealing) ,
HB 10 -1= 179 MPa
Specification :
Mechanical properties :
sв
- 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]
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). Helpfull for specialists in material technology, structural engineer, mechanical engineer, metallurgy and metal trader