Low-melting alloys and special processing

Rose’s alloy, composed of bismuth, tin and lead, melts at 94 °C. Pure bismuth has few technical applications (in instruments for magnetic measurements), but it is widely used both in the form of salts (pharmaceuticals, cosmetics, enamels) and in metallurgy together with other metals. With lead, tin, cadmium and antimony, bismuth forms alloys whose melting point is generally below 100 °C: they are alloys with a high specific weight, very fluid, which practically do not undergo solidification shrinkage and have a low coefficient of expansion. They are used in soldering, for the preparation of moulds, to obtain impressions, to fix punches and dies, for the construction of safety valves, for the production of printing type, as a quenching bath. In addition to the aforementioned Rose’s alloy, the following should be mentioned: Newton’s alloy (bismuth, lead, tin), melting point 94.5 °C; Wood’s alloy (bismuth, lead, tin, cadmium), melting point 65.5 °C; Lipowitz’s alloy (like the previous one, but with different percentages), melting point 60 °C. The alloy composed of bismuth (50%), lead (27%), tin (13%), calcium (10%) is used for the manufacture of dies and punches for cutting and stamping sheet metal.

Below are some of the alloys we can supply.

The alloys can be supplied in ingots, blocks, rounds, wires or preforms.

We remain available for specific requests and for particular alloys not present in the catalogue.

 

LOW-MELTING ALLOYS — CATALOGUE

Tin – lead soldering alloys.

Indium – lead alloys.

Indium – tin alloys

Indium – silver alloys

Indium – bismuth – tin alloys

White anti-friction metals with and without lead

 

OUR ALLOY LIST

MCP 11 · melting point 11 °C · Alloy Gallium, Indium, Tin

MCP 16 · melting point 16 °C · Alloy Gallium, Indium, Tin

MCP 21 · melting point 21 °C · Alloy Gallium, Indium

MCP 47 · melting point 47 °C · Alloy Bismuth, Lead, Indium, Tin, Cadmium

Melting point 58° alloy: Round blocks MCP58

Melting point 58° alloy: Ingot blocks MCP58

MCP58 alloy blocks of 1 kg each - Bi 49% Pb 18% Sn 12% In 21%

LEGINF61 billet diam. 55 mm short: Sn 16.400 - Bi 32.500 - In 51.089

Alloy billets Bi 32.5%, In 51.089%, Sn 16.4% melting temp. 61° diameter 55

Melting alloy 61°: Sn 16.5%, Bi 32.5%, In 51%

Alloy billets Bi 43.20%, In 39.3%, Sn 17.5% melting temp. 66/80° diameter 55 x L. 170 mm

MCP 69 · melting point 69 °C · Alloy Bismuth, Lead, Tin, Cadmium

Melting point 70° alloy: Alloy MCP 70

Low-melting alloy 70° (Bi approx. 43%; Sn approx. 17%; In approx. 39%)

Billets 55 mm F70W alloy (Sn 12.5 / Pb 25 / Cd 12.5 / Bi 50)

Melting alloy 70°: Bi 43.20%, In 39.3%, Sn 17.5%

Lipowitz alloy - melting 70°: Bi 50%, Pb 27%, Sn 13%, Cd 10%

Wood alloy – melting 70°: Bi 49.5%, Pb 27.2%, Sn 13.2%, Cd 10.1%

Wood eutectic - melting 71°: Bi 49.5%, Pb 27.3%, Sn 13.1%, Cd 10.1%

Melting alloy 72°: In 66.3%, Bi 33.7%

Melting alloy 79°: In 26%, Sn 17%, Bi 57%

Wire 1.5 mm F96 alloy (Sn 18 / Pb 30 / Bi 52)

Rings in LEGF96 alloy, outer diam. 9.5 x hole 3.0 x thickness 3.25 mm

Rose eutectic - melting 96°: Bi 50%, Pb 31.2%, Sn 18.8%

Darcet alloy - melting 96°: Pb 32%, Sn 15.5%, Bi 52.5%

Arcet alloy melting 96°: Pb 32.2%, Sn 18.4%, Bi 49.2%

Melting alloy 109°: In 33.7%, Bi 66.3%

Small bars diam. 6 mm in alloy Sn 48% In 52%. Melting temp. 117°

MCP124 alloy blocks of 1 kg each - Bi >= 40 - <=70 - Pb bulk >=30 - <= 75

Low-melting alloy — MCP137 alloy blocks of 1 kg each. Analysis: Sn 41.66 - Bi Remainder (58.34), Melting point: 135°, Density 8.58 g/cm3

Low-melting alloy 138° MCP137

Eutectic fusible alloy 138 C in ingots: Sn 42% +/- 1; Bi 58% +/- 1; Class B ISO 9453 Alloy 301

MCP 150 · melting point 150 °C · Alloy Bismuth, Tin, Lead

Sn91Zn9 alloy, round 42 x 15 mm

Parts in Sn91Zn9 alloy diam. 23.40 mm x 10.3 mm

Sn91Zn9 alloy, turned preform, outer diam. 85 mm, hole 50 mm, length 10 mm

Sn91Zn9 alloy, round-section preform, diameter 42 mm, length 15 mm

MCP 200 · melting point 200 °C · Alloy Bismuth, Tin