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Characteristics for grade     34NKM   ( 34НКМ )



      Grade :   34NKM   ( 34НКМ ) (   34НКМП   )
      Classification :   Magnetically soft precision alloy
      Equivalent grades:     Is absent



Chemical composition in % for grade   34NKM   ( 34НКМ )
Fe C Si Mn Ni S P Mo Co
30.83 - 34.75max   0.030.15 - 0.30.3 - 0.633.5 - 35max   0.02max   0.022.8 - 3.228.5 - 30


Mechanical properties under Т=20oС for grade   34NKM   ( 34НКМ )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Band, GOST 10160-75     540   40 40  
Band cold-worked , GOST 10160-75     930 885 4 5  


    Brinell hardness for     34NKM   ( 34НКМ )   ,     Band GOST 10160-75 HB 10 -1 = 130   MPa
    Brinell hardness for     34NKM   ( 34НКМ )   ,     Band GOST 10160-75 HB 10 -1 = 155   MPa


Physical properties for grade   34NKM   ( 34НКМ )
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       8500   500
100   10.6        



Types of delivery of grade   34NKM   ( 34НКМ )
В30 - Classification, nomenclature and general norms


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]

  34NKM   ( 34НКМ ) - Magnetically soft precision alloy: 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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