Schreier Metall GmbH: Cast Bronze

Cast Bronze

Alloy			Density approx.	Composition in %	Important tempers	Tensile Strength R_m N/mm²	Yield Stress R_p0,2 N/mm²	Elongation A %
CuSn5Zn5Pb5-C DIN EN 1982	CC491K	8,7	Cu 83,0 - 87,0 Sn 4,0 - 6,0 Zn 4,0 - 6,0 Pb 4,0 - 6,0	GZ GC	≥ 250 ≥ 250	≥ 110 ≥ 110	≥ 13 ≥ 13	≥ 65 ≥ 65
Comparable Specifications: CuSn5ZnPb, 2.1096, DIN 1705 (Rg 5) C83600 UNS LG2, BS 1400 Construction material. The main areas of application are water and steam fitting housings up to 255 °C, pump housings and thin-walled, intricate castings and turned parts for mechanical and apparatus engineering and shipbuilding. Is usually replaced as a bearing material with Cu Sn7 Zn4 Pb7-C today. Product with information obligations to REACH-Legislation
CuSn7Zn4Pb7-C DIN EN 1982	CC493K	8,8	Cu 81,0 - 86,0 Sn 5,2 - 8,0 Zn 2,0 - 5,0 Pb 5,0 - 8,0	GZ GC	≥ 260 ≥ 260	≥ 120 ≥ 120	≥ 12 ≥ 12	≥ 70 ≥ 70
Comparable Specifications: CuSn7ZnPb, 2.1090, DIN 1705 (Rg 7) C93200 UNS Commonest, low-budget gun metal alloy for slide bearings. Still has good dry-running properties and sufficient wear resistance at medium hardness. Also suitable when unhardened shafts and light edge pressure are being used. Short-chipping material, good machinability, good corrosion resistance (even in seawater), soft solderable and to a limited extent hard solderable. The main areas of application are slide bearings and bearing bushings for general mechanical engineering. Product with information obligations to REACH-Legislation
CuSn10Zn (Rg10) DIN 1705 Not included in DIN EN 1982 anymore.	2.1086	8,7	Cu 86,0 - 89,0 Sn 9,0 - 11,0 Zn 1,0 - 3,0 Pb ≤ 1,5	G	≥ 260	≥ 130	≥ 15	≥ 75
Comparable Specifications: C90500 UNS G 1, BS 1400 This hard gun metal alloy is used for more highly stressed fittings, slide bearing shells and bushings, also for worm wheels with low sliding speeds. But only moderate dry-running properties. Product with information obligations to REACH-Legislation
CuSn10-C DIN EN 1982	CC480K	8,7	Cu 88,0 - 90,0 Sn 9,0 - 11,0 Pb ≤ 1,0	GC GZ	≥ 280 ≥ 280	≥ 170 ≥ 160	≥ 10 ≥ 10	≥ 80 ≥ 80
Comparable Specifications: CuSn10, 2.1050, DIN 1705 (Sn Bz 10) C90700 UNS CT 1, BS 1400 Construction material with high elongation, corrosion and seawater-resistant. Fitting and pump housings, guide wheels, impellers and paddle wheels for pumps and water turbines. Product with information obligations to REACH-Legislation
CuSn12-C DIN EN 1982	CC483K	8,8	Cu 85,0 - 89,0 Sn 10,5 - 13,0 Pb ≤ 0,7	GC GZ	≥ 300 ≥ 280	≥ 150 ≥ 150	≥ 6 ≥ 5	≥ 90 ≥ 90
Comparable Specifications: CuSn12, 2.1052, DIN 1705 (SnBz12, Gbz12) C90800 UNS PB 2, BS 1400 Tough and hard material with good wear resistance, also suitable for high sliding speeds. Good corrosion resistance (even in seawater). Especially suitable for parts that have to bear surface pressures and impacts at the same time and are also subjected to friction wear. Resistant to cavitation stress. Highly stressed worm rims, cylinder inserts, gibs and slide bars. This alloy was used to develop CuSn11Pb2-C, which has improved dry-running properties and machinability. Product with information obligations to REACH-Legislation
CuSn11Pb2-C DIN EN 1982	CC482K	8,9	Cu 83,5 - 87,0 Sn 10,5 - 12,5 Pb 0,7 - 2,5	GC GZ	≥ 280 ≥ 280	≥ 150 ≥ 150	≥ 5 ≥ 5	≥ 90 ≥ 90
Comparable Specifications: CuSn12Pb, 2.1061, DIN 1705 C92500 UNS Tough and hard bearing material with good wear resistance and good dry-running properties. Good corrosion resistance (even in seawater). Similar properties to those of Cu Sn 12-C, comparatively better machinability due to the addition of the lead. Edge pressure must be avoided. Suitable for slide bearings with high load peaks, highly stressed gibs and slide bars. Product with information obligations to REACH-Legislation
CuSn12Ni2-C DIN EN 1982	CC484K	8,6	Cu 84,5 - 87,5 Sn 11,0 - 13,0 Ni 1,5 - 2,5 P 0,05 - 0,40 Pb ≤ 0,3	GC GZ	≥ 300 ≥ 300	≥ 180 ≥ 180	≥ 10 ≥ 8	≥ 95 ≥ 95
Comparable Specifications: CuSn12Ni, 2.1060, DIN 1705 C91700 UNS CT2, BS 1400 Tough and hard material with very high wear resistance, also suitable at high sliding speeds and surface pressures. Good corrosion resistance, seawater-resistant, resistant to cavitation stress, medium machinability. High-speed worm and helical wheel rims. Product with information obligations to REACH-Legislation