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Germany DIN 9MnNi4 Round Wire Rod for Welding Filler Metals; Technical Conditions of Delivery and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 9MnNi4 / 9 MnNi 4
Category Grade Standard Region/Area Standard Content
Metals 9 MnNi 4 DIN 17145 Germany Round Wire Rod for Welding Filler Metals; Technical Conditions of Delivery

Chemical composition(mass fraction)(wt.%) of the 9 MnNi 4

Element Min Max Similar
Si 0.0500 0.2000 -
S - 0.0200 -
P - 0.0200 -
Ni 0.3500 0.6000 -
Mn 0.9500 1.2500 -
Cu - 0.2000 -
Cr - 0.2000 -
C 0.0500 0.1500 -
Al - 0.0300 -

Mechanical Properties of steel grade 9 MnNi 4

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)
581 (≥) 143 (≥) 22 43 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical Properties of steel grade 9 MnNi 4

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
34 - -     0.44 -  
565 173 - 11.3 234   -  
117 - 22 14.2   411 421

Heat Treatment of steel grade 9 MnNi 4

Heat treated : 1286°C - 1983°C

Technological Curves of steel grade 9 MnNi 4

Cross Reference Table (Equivalent Grade) of 9 MnNi 4

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