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CuNi2Si | CW111C Material Datasheet

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Material Description

Material Number	Material Number (single)	Standard	Range of Application	Standard Status	Country
CW111C (DIN EN 1652 : 1998-03)	CW111C	DIN EN 1652 : 1998-03	Supersedes DIN 17670-1 : 1983-12, DIN 17670-2 : 1969-06, DIN 1751 : 1973-06, DIN 1791 : 1973-06	Valid	Germany	1)
1) Remark: CuNi2Si, mat. No CW111C, is counted among hardenable, low alloyed copper alloys. To the comparable make CuBNi2Si, mat. No 2.0855, acc. to DIN 17666 : 1983-12 applies: The material shows favorable electrical and thermal conductivity, corrosion resistance, high fatigue and creep resistance as well as favorable spring properties. CuNi2Si is in hardened condition resistant to stress corrosion. Temperature for removal of workhardening approximates 450°C. Strength still increases at low-temperature range. Processing properties: hot and cold forming: good machinability: moderately soft soldering: good hard soldering: moderately gas shielded welding: moderately burnishing: good Application: Particularly for aerial line material, such as clamps, mounting links, nuts, high-strength and corrosion resistant screws. Furthermore for wire ropes in electrical overhead line construction, bearing bushings, roller bearing cages, valve guide bushings and springs. For the electrolytically tinned strip the coatings (Sn bright, Sn matt, Sn fuzed, SnPb) are listed by the application (better solderability, better corrosion resistance, reduction of the electrical contact resistance, better appearance) in the DIN EN 14436 : 2004-11 (Table 5)

Chemical Composition

Fe [%]	Mn [%]	Ni [%]	Pb [%]	Si [%]
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Mechanical Properties

Semi-finished Product	Condition	Strength Abbrevation	Nominal Size [mm]	Temperature [°C]	Tensile Strength [MPa]	Yield Strength (0.2% offset) [MPa]	Elongation A50 [%]	Hardness HV
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Physical Properties

Condition	Temperature [°C]	Melting Temperature [°C]	Density [g/cm³]	Young's Modulus [GPa]	Poisson's Ratio	Mean Coefficient of Thermal Expansion [10^-6*K^-1]	Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1]	Thermal Conductivity [W/(m*K)]	Mean Specific Heat Capacity [kJ/(kg*K)]	Electric Conductivity [MS/m]	Specific Electric Conductivity [% IACS]
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Heat Treatment

Heat Treatment	Temperature [°C]
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Cross Reference

Material Name	Country	Standard
CuNi2Si	Europe	EN 1652
CuNi2Si	Europe	EN 12420
CuNi2Si	Europe	EN 12449
CuNi2Si	Europe	EN 1654
CuNi2Si	International	ISO 1187-83
C64700	USA	UNS
B411 UNS C64700	USA	ASTM B411
2.0855	Germany	DIN 17666	1)
CuNi2Si	Germany	DIN 17666	1)
1) Source: DIN CEN/TS 13388 (DIN SPEC 9700)

Producer/Supplier/Trade names

Tradename	Supplier
OF2400	OTTO FUCHS KG, Meinerzhagen
4720	VDM Metals GmbH, Frankfurt/Main
Coradur 2	Wieland Prometa GmbH, Düsseldorf
CuNi2Si	CSN Carl Schreiber GmbH, Neunkirchen
CuNi2Si	Schreier Metall GmbH, Erkrath
CuNi2Si	Wieland Prometa GmbH, Düsseldorf
CuNi2Si	Auerhammer Vacuumgießerei GmbH, Aue
Kuprodur A	VDM Metals GmbH, Frankfurt/Main
NSB	ZOLLERN GmbH & Co. KG, Sigmaringen

Material Compliance

REACh	RoHS
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Linear-elastic

Temperature [°C]	Young's modulus [GPa]	Bulk modulus [GPa]	Shear modulus [GPa]	Poisson's ratio
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Yield strength

Temperature [°C]	0.1% Proof strength [MPa]	0.2% Proof strength [MPa]	Yield strength [MPa]
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Coefficient thermal expansion

Related Temperature [°C]	Temperature [°C]	Coefficient thermal expansion [10^-6*K^-1]
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Specific heat

Temperature [°C]	Specific heat [kJ/(kg*K)]
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Density

Temperature [°C]	Density [g/cm³]
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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Thermal conductivity

Temperature [°C]	Thermal conductivity [W/(m*K)]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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Designation

Designation	Material number	Source
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Linear-elastic

Temperature [°C]	Young's modulus [GPa]	Bulk modulus [GPa]	Shear modulus [GPa]	Poisson's ratio
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Thermal conductivity

Temperature [°C]	Thermal conductivity [W/(m*K)]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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Yield strength

Temperature [°C]	0.1% Proof strength [MPa]	0.2% Proof strength [MPa]	Yield strength [MPa]
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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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Yield strength

Temperature [°C]	0.1% Proof strength [MPa]	0.2% Proof strength [MPa]	Yield strength [MPa]
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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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Yield strength

Temperature [°C]	0.1% Proof strength [MPa]	0.2% Proof strength [MPa]	Yield strength [MPa]
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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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Yield strength

Temperature [°C]	0.1% Proof strength [MPa]	0.2% Proof strength [MPa]	Yield strength [MPa]
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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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