Foil, sheet, strip made of 2.1020CuSn6
2.1020CuSn6 is tin-phosphorus bronze alloy that can be exposed to cold deformation. Manufacture of bronze sheet of 2.1020CuSn6 grade is specified by GOST 5017−2006.
Percentage composition of alloy 2.1020CuSn6
|Cu||92.65 — 93.9|
|P||0.1 — 0.25|
|Sn||6 — 7|
Strip can be obtained by rolling or by an electrolytic method. It should have a thickness not less than 0.1 mm according to GOST 501−82 25. It is usually supplied in rolls.
Coefficient of friction with lubricant of grade 2.1020CuSn6 = 0,01
Coefficient of friction without lubricant of grade 2.1020CuSn6 = 0,12
Hardness of bronze 2.1020CuSn6, soft alloy — HB 10 -1 = 70 — 90 MPa
Hardness of bronze 2.1020CuSn6, hard alloy — HB 10 -1 = 170 — 220 MPa
Casting and physical characteristics of grade 2.1020CuSn6:
1) Melting point — 995 °C;
2) Temperature of hot working — 700 — 800 °C;
3) Annealing temperature — 600 — 650 °C;
Range of products
Springs, bushings, bearing liners, pump parts.
2.1020CuSn6 is used in mechanical engineering, shipbuilding and motor-vehicle industry for a manufacture of bearing parts. Besides, there are made bare-pipes for manufacture of bimetal steel-bronze bushings. Wire is manufactured for manual welding of tin-phosphorus and tin bronzes under protection of inert gasses.
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