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Characteristics for grade     29NK   ( 29НК )



      Grade :   29NK   ( 29НК ) (   29НК-ВИ     29НК-ВИ-1     29НК-1   )
      Classification :   Precision alloy with specified temperature coefficient of linear expansion
      Equivalent grades:     Is absent



Chemical composition in % for grade   29NK   ( 29НК )
Fe C Si Mn Ni S P Cr Co TiAl Cu
51.14 - 54.5max   0.03max   0.3max   0.428.5 - 29.5max   0.015max   0.015max   0.117 - 18max   0.1max   0.2max   0.2


Mechanical properties under Т=20oС for grade   29NK   ( 29НК )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Band, GOST 14080-78     490-610  23    


Technological properties of the material   29NK   ( 29НК ) .
        Melting temperature : 1450   °C


Physical properties for grade   29NK   ( 29НК )
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 1.45     8200   500



Types of delivery of grade   29NK   ( 29НК )
В22 - Graded and shaped rolling
В32 - Graded and shaped rolling
B34 - Ribbons
B73 - Steel Alloy Wire


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]

  29NK   ( 29НК ) - Precision alloy with specified temperature coefficient of linear expansion: 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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