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Characteristics for grade     АS20KHGNM   ( АС20ХГНМ )



      Grade :     АS20KHGNM   ( АС20ХГНМ )
      Classification :   Rolled steel of improved and high cutting machinability
      Equivalent grades:     Is absent



Chemical composition in % for grade   АS20KHGNM   ( АС20ХГНМ )
C Si Mn Ni S P Cr Mo Cu Pb -
0.18 - 0.230.17 - 0.370.7 - 1.10.4 - 0.7max   0.035max   0.0350.4 - 0.70.15 - 0.25max   0.30.15 - 0.3 S+P <0.06


Mechanical properties under Т=20oС for grade   АS20KHGNM   ( АС20ХГНМ )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Blank, GOST 1414-75 to 100   1180 930 7  590Guenching 850 - 870oC, oil, Drawing 150 - 180oC, air,


    Brinell hardness for     АS20KHGNM   ( АС20ХГНМ )   (hot-rolled, annealing) ,       GOST 1414-75 HB 10 -1 = 201   MPa
    Brinell hardness for     АS20KHGNM   ( АС20ХГНМ )   (cold-drawn, cold-worked) ,       GOST 1414-75 HB 10 -1 = 269   MPa
    Brinell hardness for     АS20KHGNM   ( АС20ХГНМ )   (high tempering) ,       GOST 1414-75 HB 10 -1 = 223   MPa



Types of delivery of grade   АS20KHGNM   ( АС20ХГНМ )
В22 - Graded and shaped rolling
В32 - Graded and shaped rolling


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]

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]

  АS20KHGNM   ( АС20ХГНМ ) - Rolled steel of improved and high cutting machinability: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys

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