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Japan DAIDO NAK55 塑料模具钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: NAK55 / NAK55
Category Grade Standard Region/Area Standard Content
Metals NAK55 DAIDO PMS Japan 塑料模具钢

Chemical composition(mass fraction)(wt.%) of the NAK55

Element Min Max Similar
快削元素 - - -
Al - - 1.0000
Mo - - 0.3000
Cu - - 1.0000
Ni - - 3.0000
Mn - - -
Si - - 0.3000
C - - 0.1500
快削元素 - - -
Al - - 1.0000
Mo - - 0.3000
Cu - - 1.0000
Ni - - 3.0000
Mn - - -
Si - - 0.3000
C - - 0.1500

Mechanical Properties of steel grade NAK55

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
545 (≥) 562 (≥) 32 33 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade NAK55

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
11 - -     0.22 -  
422 726 - 24.3 444   -  
539 - 44 34.2   323 231

Heat Treatment of steel grade NAK55

Heat treated : 1599°C - 1656°C

Technological Curves of steel grade NAK55

Cross Reference Table (Equivalent Grade) of NAK55

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