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CuNi 25

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Germany DIN CuNi25 Wrought copper alloys; copper-nickel alloys; composition and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: CuNi25 / CuNi 25
Category Grade Standard Region/Area Standard Content
Metals CuNi 25 DIN 17664 Germany Wrought copper alloys; copper-nickel alloys; composition

Chemical composition(mass fraction)(wt.%) of the CuNi 25

Element Min Max Similar
Zn - 0.5000 -
Tot. other - 0.1000 -
S - 0.0500 -
Pb - 0.0300 -
Ni 30.0000 32.0000 -
Mn 0.5000 1.5000 -
Fe 0.4000 1.0000 -
Cu - - -
C - 0.0600 -
Zn - 0.5000 -
Tot. other - 0.1000 -
S - 0.0500 -
Pb - 0.0300 -
Ni 30.0000 32.0000 -
Mn 0.5000 1.5000 -
Fe 0.4000 1.0000 -
Cu - - -
C - 0.0600 -
Zn - 0.5000 -
Tot. other - 0.1000 -
S - 0.0500 -
Pb - 0.0300 -
Ni 30.0000 32.0000 -
Mn 0.5000 1.5000 -
Fe 0.4000 1.0000 -
Cu - - -
C - 0.0600 -
Zn - 0.5000 -
Tot. other - 0.1000 -
S - 0.0500 -
Pb - 0.0300 -
Ni 30.0000 32.0000 -
Mn 0.5000 1.5000 -
Fe 0.4000 1.0000 -
Cu - - -
C - 0.0600 -
Zn - 0.5000 -
Tot. other - 0.1000 -
S - 0.0500 -
Pb - 0.0300 -
Ni 30.0000 32.0000 -
Mn 0.5000 1.5000 -
Fe 0.4000 1.0000 -
Cu - - -
C - 0.0600 -

Mechanical Properties of steel grade CuNi 25

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)
772 (≥) 728 (≥) 32 23 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

Physical Properties of steel grade CuNi 25

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
13 - -     0.33 -  
469 974 - 41.3 132   -  
886 - 12 22.2   322 433

Heat Treatment of steel grade CuNi 25

Heat treated : 1747°C - 1624°C

Technological Curves of steel grade CuNi 25

Cross Reference Table (Equivalent Grade) of CuNi 25

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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