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Poland PN NN4KPr Wrought nickel alloys -- Grades and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: NN4KPr / NN4KPr
Category Grade Standard Region/Area Standard Content
Metals NN4KPr PN H87045 Poland Wrought nickel alloys -- Grades

Chemical composition(mass fraction)(wt.%) of the NN4KPr

Element Min Max Similar
C - 0.0700 -
Mn 3.8000 4.3000 -
P - 0.0200 -
S - 0.0200 -
Si 0.9000 1.1000 -
Ni - - -
Cu - 0.1500 -
Ti 0.0500 0.2000 -
Mg 0.0300 0.0800 -
Fe - 0.4000 -

Mechanical Properties of steel grade NN4KPr

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)
862 (≥) 227 (≥) 12 12 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade NN4KPr

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
42 - -     0.21 -  
272 346 - 14.3 231   -  
593 - 44 24.2   413 213

Heat Treatment of steel grade NN4KPr

Heat treated : 1848°C - 1794°C

Technological Curves of steel grade NN4KPr

Cross Reference Table (Equivalent Grade) of NN4KPr

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