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YuNDKI

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Russia GOST YuNDKI Casting hard magnetic materials. Marks and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: YuNDKI / YuNDKI
Category Grade Standard Region/Area Standard Content
Metals YuNDKI GOST 17809 Russia Casting hard magnetic materials. Marks

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

Element Min Max Similar
Ni 18.0000 20.0000 -
Fe - - -
Cu 3.0000 4.0000 -
Co 15.0000 19.0000 -
Al 8.5000 10.0000 -

Mechanical Properties of steel grade YuNDKI

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)
171 (≥) 794 (≥) 24 32 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 412

Physical Properties of steel grade YuNDKI

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
31 - -     0.12 -  
921 883 - 32.3 142   -  
354 - 44 13.2   412 441

Heat Treatment of steel grade YuNDKI

Heat treated : 1691°C - 1321°C

Technological Curves of steel grade YuNDKI

Cross Reference Table (Equivalent Grade) of YuNDKI

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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