CuSn4 | CW450K Material Datasheet
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| Material Number | Material Number (single) | Standard | Range of Application | Standard Status | Country | Remark |
|---|---|---|---|---|---|---|
| CW450K (DIN EN 1652 : 1998-03) | CW450K | 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 | CuSn4, mat. No. CW450K, is comparable to the DIN-make CuSn4, mat. No. 2.1016, acc. to DIN 17662 : 1983-12. The material is specified by a favorable combination of very good cold formability with strength and hardness. It is corrosion resistant, good soft and hard solderable and shows still good electrical conductivity. Properties of the CuSn-alloy are predominantly determined by the tin-content. The alloy is unhardenable, only work hardening is feasible. Tensile strength, yield point and hardness increase according to the rising cold forming grade, elongation after fracture decreases. Electrical and thermal conductivity are lower than for pure copper. Very high resistance to corrosion, particularly to atmospheric influences, seawater, sulfite liquor, carbonated and salted mine water. The alloys are stress corrosion-proof. Processing properties: warm forming: limited cold forming: very good machinability: moderately to hardly hard soldering: very good soft soldering: very good gas welding: medium arc welding: medium TIG-welding: good MIG_welding: good resistance welding: good electron beam welding: good sticking: suitable burnishing: good mechanical burnishing: good electrolytical/chemical burnishing: good galvanizing: very good suitability for dip tinning: very good Appliction: CuSn4 is predominantly used in the form of strips for all types of springs with mean requirements, such as connectors, electrographic springs for contacts and earthing contacts, clamp-connenctions for radio, TV and video, receptacles for electronical assemblies, for pushbutton shifting springs and locking clamps, spring rings as well as for textile machine components. 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 [%] | Ni [%] | P [%] | Pb [%] | Sn [%] | Zn [%] | Source | Remark |
|---|---|---|---|---|---|---|---|
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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] | Yield Strength (1.0% offset) [MPa] | Elongation A [%] | Elongation A50 [%] | Reduction of Area [%] | Hardness HV | Source | Remark |
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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)] | Specific Electrical Resistance [µΩm] | Mean Specific Heat Capacity [kJ/(kg*K)] | Electric Conductivity [MS/m] | Specific Electric Conductivity [% IACS] | Source |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Young's Modulus [GPa] vs Temperature [°C]
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| Heat Treatment | Temperature [°C] | Source | Remark |
|---|---|---|---|
| blur | blur | blur | blur |
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Cross Reference
| Material Name | Country | Standard | Source |
|---|---|---|---|
| CuSn4 | Bulgaria | BDS 14010-77 | |
| 423013 | Czech Republik/Slovakia | CSN 423013 | |
| CuSn4 | Czech Republik/Slovakia | CSN 423013 | |
| CuSn4 | Europe | EN 1652 | |
| CuSn4 | Europe | EN 1654 | |
| BrOF4-0,26 | Russia | GOST 5017 | |
| БpOФ4-0,26 | Russia | ГОСТ 5017 | |
| CuSn4 | International | ISO 427-83 | |
| B4 | Poland | PN-77/H-87050 | |
| CuSn4 | Hungary | MSZ 710/1-79 | |
| C51100 | USA | UNS | |
| B100 UNS C51100 | USA | ASTM B100 | |
| B103 UNS C51100 | USA | ASTM B103 | |
| B888 UNS C51100 | USA | ASTM B888 | |
| C51100 | USA | SAE J461 | |
| CuSn4 | Germany | DIN 17662 | DIN CEN/TS 13388 (DIN SPEC 9700) |
| 2.1016 | Germany | DIN 17662 | DIN CEN/TS 13388 (DIN SPEC 9700) |
Producer/Supplier/Trade names
| Tradename | Supplier |
|---|---|
| 284 | William Prym Holding GmbH, Stolberg |
| B14 | Wieland-Werke AG, Ulm |
| BB40 | Sundwiger Messingwerk GmbH & Co.KG, Hemer |
| BD40 | Sundwiger Messingwerk GmbH & Co.KG, Hemer |
| CuSn4 | CSN Carl Schreiber GmbH, Neunkirchen |
| CuSn4 | Wieland-Werke AG, Velbert |
| CuSn4 | KME Germany AG & Co.KG, Osnabrück |
| CuSn4 | Schreier Metall GmbH, Erkrath |
| CuSn4 | Gebr. Kemper GmbH + Co, Olpe/Biggesee |
| CuSn4 | Wieland Prometa GmbH, Düsseldorf |
| Pro-4 | Wieland Prometa GmbH, Düsseldorf |
| SnBz4 | Swissmetal Lüdenscheid GmbH, Lüdenscheid |
Material Compliance
| REACh | RoHS |
|---|---|
| blur | blur |
CuSn4 (CW450K; DIN EN 1652 : 1998-03)
Linear-elastic
| Temperature [°C] | Young's modulus [GPa] | Poisson's ratio |
|---|---|---|
| blur | blur | blur |
| blur | blur | blur |
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
| blur | blur |
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| blur | blur |
Electrical resistivity
| Temperature [°C] | Specific electrical resistance [µΩm] |
|---|---|
| blur | blur |
| blur | blur |
Coefficient thermal expansion
| Related Temperature [°C] | Temperature [°C] | Coefficient thermal expansion [10^-6*K^-1] |
|---|---|---|
| blur | blur | blur |
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Specific heat
| Temperature [°C] | Specific heat [kJ/(kg*K)] |
|---|---|
| blur | blur |
Density
| Temperature [°C] | Density [g/cm³] |
|---|---|
| blur | blur |
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
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Thermal conductivity
| Temperature [°C] | Thermal conductivity [W/(m*K)] |
|---|---|
| blur | blur |
| blur | blur |
Classification
| WIAM Material | Source description |
|---|---|
| blur | blur |
Designation
| Designation | Material number | Source |
|---|---|---|
| blur | blur | blur |
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| blur | blur | blur |
| blur | blur | blur |
CuSn4 (R290; bar; 0.100-5.000mm)
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (R390; bar; 0.100-5.000mm)
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (R480; bar; 0.100-5.000mm)
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (R540; bar; 0.100-2.000mm)
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (R610; bar; 0.100-2.000mm)
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (Y320; strip; 0.100-0.250mm)
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (Y320; strip; 0.250-1.000mm)
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (Y440; strip; 0.100-0.250mm)
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (Y440; strip; 0.250-1.000mm)
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (Y510; strip; 0.100-0.250mm)
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (Y510; strip; 0.250-1.000mm)
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (Y580; strip; 0.100-0.250mm)
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (Y580; strip; 0.250-1.000mm)
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (hot rolled)
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
Classification
| Treatment | Source description |
|---|---|
| blur | blur |
CuSn4 (recrystallization annealed (+RA))
Yield strength
| Temperature [°C] | 0.2% Proof strength [MPa] |
|---|---|
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
Classification
| Treatment | Source description |
|---|---|
| blur | blur |
CuSn4 (R390; strip; 0.100-0.250mm)
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (R390; strip; 0.250-1.000mm)
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (R480; strip; 0.100-0.250mm)
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (R480; strip; 0.250-1.000mm)
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (R540; strip; 0.100-0.250mm)
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (R540; strip; 0.250-1.000mm)
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (R610; strip; 0.100-0.250mm)
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (R610; strip; 0.250-1.000mm)
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Semi-finished product | Dimension [mm] | Source description |
|---|---|---|---|
| blur | blur | blur | blur |
CuSn4 (soft annealed (+A))
Linear-elastic
| Temperature [°C] | Young's modulus [GPa] |
|---|---|
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
| blur | blur |
| blur | blur |
Classification
| Treatment | Source description |
|---|---|
| blur | blur |
CuSn4 (hard)
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
Classification
| Treatment | Source description |
|---|---|
| blur | blur |
CuSn4 (pressed)
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
Classification
| Treatment | Source description |
|---|---|
| blur | blur |
CuSn4 (cold formed)
Linear-elastic
| Temperature [°C] | Young's modulus [GPa] |
|---|---|
| blur | blur |
Classification
| Treatment | Source description |
|---|---|
| blur | blur |