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G-CuSn7ZnPb | 2.1090 Material Datasheet

Material Standard Values

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Material Description

Material Number	Material Name	Material Number (single)	Standard	Scope	Standard Status	Country	Successor	VDA 231-106 classification
2.1090 (DIN 1705 : 1981-11)	G-CuSn7ZnPb	2.1090	DIN 1705 : 1981-11	DIN 1705 : 1981-11 replaced by DIN EN 1982 : 1998-12	Replaced	Germany	CuSn7Zn4Pb7-C	3.2	1)
1) Remark: G-CuSn7ZnPb (former Rg7) is a medium hard material for slide bearings. It has good dry-running operation properties and is resistant against sea water. It is used in machine engineering (allowed are max. loads up to 4000 N/cm^2) for slide bearings and coupling rods, for moderate stressed sliding plates, sockets (when the axe is made of surface annealed steels), for piston pins up to 4000 N/cm^2... Machining properties: Grindability: very good Soft soldering: good Hard soldering: restricted Gas fusion welding: poor Gas-shielding welding: poor Grindability (mech): good Galvanisability: good Immersing tin-plating: good

Chemical Composition

Cu [%]	Fe [%]	Ni [%]	P [%]	Pb [%]	S [%]	Sb [%]	Sn [%]	Zn [%]
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Material Compliance

REACh	RoHS
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Mechanical Properties

Casting Method	Condition	Condition Number	Nominal Size [mm]	Temperature [°C]	Tensile Strength [MPa]	Yield Strength (0.2% offset) [MPa]	Elongation A [%]	Hardness HB \| HBW
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Physical Properties

Temperature [°C]	Melting Temperature [°C]	Density [g/cm³]	Young's Modulus [GPa]	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)]	Linear Shrinkage [%]	Electric Conductivity [MS/m]
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Cross Reference

Material Name	Country	Standard
CuSn7Pb6Zn4	France	NF A53-707-87
CuSn7Pb3Zn3	Great Britain	BS 1400-85
CuSn7Zn4Pb7-C (CC493K)	Germany	DIN EN 1982

Producer/Supplier/Trade names

Tradename	Supplier
G-CuSn7ZnPb	Ed. Fitscher GmbH & Co KG, Oberhausen
GC-CuSn7ZnPb	Mittelrheinische Metallgießerei H. Beyer GmbH & Co KG, Andernach
GC-CuSn7ZnPb	Ed. Fitscher GmbH & Co KG, Oberhausen
GZ-CuSn7ZnPb	Schreier Metall GmbH, Erkrath
Bögra Rotguß Rg7	BÖGRA Technologie GmbH, Solingen
G-CuSn7ZnPb	Fehrmann Metallverarbeitung GmbH, Hamburg
GB4	Wieland-Werke AG, Ulm
GC-CuSn7ZnPb	Wieland-Werke AG, Ulm
GC-CuSn7ZnPb	Schreier Metall GmbH, Erkrath
GCRg7	Mittelrheinische Metallgießerei H. Beyer GmbH & Co KG, Andernach
GZ-CuSn7ZnPb	Mittelrheinische Metallgießerei H. Beyer GmbH & Co KG, Andernach
GZ-CuSn7ZnPb	Ed. Fitscher GmbH & Co KG, Oberhausen
Rg7	Schreier Metall GmbH, Erkrath
St-Rg7	Manfred J.C. Niemann, Bremen