Ramisa Sas handles semi-finished products in Nickel and its main alloys.
NICKEL CHARACTERISTICS
Atomic number 28
Atomic weight 58.71
Melting temperature °C 1455
Boiling temperature °C 2732
Density g/cm3 8.9
Thermal conductivity 82.9 W/m at 100°C
Nickel is one of the most important industrial metals. It is present as an alloying element in cast irons and stainless steels, in particular the austenitic ones that contain from 8% to 35% Nickel.
The most industrially used nickel has a purity grade of 99.4% (Ni + Co) with the following maximum impurities: Cu max. 0.1%; Fe max. 0.15%; Mn max. 0.2%; C max. 0.1%; Si max. 0.05%; S max. 0.005%.
NICKEL SEMI-FINISHED PRODUCTS
Nickel chips
Bars
Ni99.6 diameter from 0.3 to 20 mm, thickness up to 2 mm
Small bars Ni 99.7, round 6 mm, length 310 mm
Flat bars
Nickel felt 200 / 201 (0.5x300x400 mm)
Nickel anodes
Foils
Plate
Strips
Sheets
Square and rectangular tubes
Fittings
Meshes
Forged parts
Wire
Welded wire
NICKEL ALLOYS
Ramisa also handles all the main nickel alloys on the market.
Constantan
It is an alloy composed of 44/46% Nickel and 54/56% copper. Constantan is an alloy characterised by a particularly stable resistivity as the temperature varies. Sometimes it can be alloyed with a small percentage of Mn (1%).
It is supplied in the form of wires or strips. The minimum weight of the coil is 50 kg.
Nickel silver (Alpacca)
Alpacca is the name given to a series of copper-nickel-zinc alloys, also called argentone or argentena, with zinc at 15/30% and nickel at 10/30%, having good mechanical and corrosion-resistance characteristics. The presence of nickel improves these characteristics and gives the alloys an appearance very similar to that of silver.
In English it is called Nickel Silver or also German Silver.
Ramisa is able to source Alpacca semi-finished products and special Alpacca alloys.
Alpacca semi-finished products
Alpacca round bars CuNi7Zn39Pb3Mn2 acc. to DIN EN 12164 (similar: Cu Ni 7 Zn 39 Mn 5 Pb 3) CW400J (similar: 2.0771)
Round 10 mm, Round 16 mm and Round 28 mm, also chamfered, tolerance h9
Possible diameters: ø (mm) 4-5-6-7-8-9-10-11-12-13-14-15-16-18-20-22-25-30-35-40-50
Alpacca round bars CuNi12Zn30Pb1 (CW406J) Density (g/cm3) 8.60
Alpacca sheets, soft CuNi12Zn24 (Cu Ni 12 Zn 24) CW403J (2.0730)
thickness (mm) x width (mm) x length (mm)
0.4 x 600 x 2000
0.5 x 600 x 2000
0.6 x 600 x 2000
0.7 x 600 x 2000
0.8 x 600 x 2000
1 x 600 x 2000
1.2 x 600 x 2000
1.4 x 600 x 2000
1.5 x 600 x 2000
1.8 x 600 x 2000
2 x 600 x 2000
2.2 x 600 x 2000
2.5 x 600 x 2000
3 x 600 x 2000
3.5 x 600 x 2000
4 x 600 x 2000
5 x 600 x 2000
Alpacca sheet CuNi18Zn20 (CW409J) Density (g/cm3) 8.70
CuNi12Zn24 - CW403J diameter from 0.3 to 40 mm, thickness up to 2.5 mm
CuNi18Zn20 - CW409J diameter from 0.3 to 20 mm, thickness up to 1 mm
Monel
Monel or “Monel Metal” is the name for a series of corrosion-resistant alloys typically containing 67% nickel and 30% copper with traces of iron, manganese and other elements.
NICKEL TRADED IN THE LONDON METAL EXCHANGE WAREHOUSES
The nickel traded in the warehouses of the London Metal Exchange has the following characteristics:
| Primary nickel with minimum purity 99.80% |
| Form: cathodes, pellets or briquettes can be supplied. In the case of the supply of cathodes (the most common), they can have the following dimensions: 100 x 100 mm (4"x4"); 50 x 50 mm (2"x2") or 25 x 25 mm (1"x1") with dimensional tolerances according to international standards. |
| Packaging: in steel drums with a minimum net weight of 150 kg and a maximum of 500 kg. |
| On the exchange, delivery is allowed only of the brands approved according to the list issued by the London Metal Exchange. |
| Minimum lot size: 6 TO (each lot must be of a single brand) |
