CuNi25Zn20

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France AFNOR NF CuNi25Zn20 Semi-products made from copper and copper alloys. Rolled products made from nickel silver for general use. and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: CuNi25Zn20 / CuNi25Zn20

Category	Grade	Standard	Region/Area	Standard Content
Metals	CuNi25Zn20	NF A51-107	France	Semi-products made from copper and copper alloys. Rolled products made from nickel silver for general use.

Chemical composition(mass fraction)(wt.%) of the CuNi25Zn20

Element	Min	Max	Similar
Total Others	-	0.5000	-
Ni	1.4000	2.4000	-
Fe	-	0.2000	-
Cu	-	-	-
Co	-	0.3000	-
Be	0.2000	0.6000	-
Total Others	-	0.5000	-
Ni	1.4000	2.4000	-
Fe	-	0.2000	-
Cu	-	-	-
Co	-	0.3000	-
Be	0.2000	0.6000	-
Total Others	-	0.5000	-
Ni	1.4000	2.2000	-
Fe	-	0.2000	-
Cu	-	-	-
Co	-	0.3000	-
Be	0.2000	0.6000	-
Total Others	-	0.5000	-
Ni	1.4000	2.4000	-
Fe	-	0.2000	-
Cu	-	-	-
Co	-	0.3000	-
Be	0.2000	0.6000	-
Total Others	-	0.5000	-
Ni	1.4000	2.4000	-
Fe	-	0.2000	-
Cu	-	-	-
Co	-	0.3000	-
Be	0.2000	0.6000	-
Total Others	-	0.5000	-
Ni	1.4000	2.2000	-
Fe	-	0.2000	-
Cu	-	-	-
Co	-	0.3000	-
Be	0.2000	0.6000	-

Mechanical Properties of steel grade CuNi25Zn20

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
839 (≥)	114 (≥)	14	41	12	Solution and Aging, Annealing, Ausaging, Q+T,etc	323

Physical Properties of steel grade CuNi25Zn20

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
43	-	-			0.23	-
513	131	-	34.3	314		-
971	-	44	41.2			422	214

Heat Treatment of steel grade CuNi25Zn20

Heat treated : 1439°C - 1467°C

Technological Curves of steel grade CuNi25Zn20

No Curve

Cross Reference Table (Equivalent Grade) of CuNi25Zn20

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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