Copper tin mill-products
Copper tin foil, sheet supplier
«Auremo» supplier offers to buy copper tin foil, sheet by wholesale. A wide range of half-finished goods is presented in stock. They comply with GOST and International Standards of quality. Strip, sheet, foil of copper tin are always in stock. You can buy them for affordable price from copper tin foil, sheet supplier. We are waiting for your orders. Buy copper tin foil, sheet in a moment.
Copper tin is tin bronze alloy, which relates to European bronze mill-products. European tin bronze can be marked as UNS C90300, C90500, C90700. Tin bronze contains up to 15,8% of tin, at that keeping a structure of alpha-copper. Copper alloys of tin are known by their resistance to corrosion. They possess high wearing quality and low coefficient of steel friction. Tin bronze is more malleable than red and semired brasses.
|≤0,005||≤0,005||7,5−9||≤ 0,3||≤ 0,3||≤ 0,2||86−88||≤ 1||3−5||≤ 0,05||≤ 1,5||≤ 0,5|
— Density of material is 8,75 g/cm3;
— Heat conduction ((20.0°C / 68°F) is 74,0 V/µm;
Tin bronze is badly treated by pressure, cutting. That is why it is considered to be a casting metal. This alloy possesses high corrosive resistance and antifriction properties. It can be used for details of movers or in chemical industry for manufacturing fittings. Plumb is added to tin bronzes with an aim to improve pressure treatment. Plumb decreases rupture strength of tin bronzes. However, it can be balanced with other elements. Plumb, phosphorus can improve antifriction properties. Tin bronzes can also be alloyed with zinc, nickel, aluminium, arsenic.
1) Brinell hardness HB is 70;
2) Ultimate tensile strength is 310 MPa;
3) Flow limit is 145 MPa;
4) Ultimate elongation at break is 30%;
5) Charpy impact strength is 19,0;
6) Module of flexibility is 117 HPa;
7) Poisson’s ratio is 0,34;
Flat products are manufactured by a method of hot rolling in containment envelope. A traditional technology of bronze foil rolling has demerits that worsen its quality with decreasing of foil thickness. This leads to a heavy increase of cost of the thinnest foil. Flat products possess corrosive resistance, have high indexes of conductivity. It is resistant in an aggressive environment.
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