CERRO® ALLOYS

Cerrobend alloy

Presentation

CERRO® products are low melting temperature alloys used as thermal fusibles for forming or temporarily fixing parts. They are used in applications such as eyewear, the manufacture of spatial parts and aeronautics. The METACONCEPT Group offers a range of specific alloys whose melting temperatures, guaranteed by the precise composition of the alloy, provides the behavioural change required (solidus/liquidus) in safety systems or when forming parts in industrial or medical fields. These products are supplied as bars or small ingots; they can also be manufactured in the form of sticks, flat bars or large ingots. Fusible alloys undergo dimensional changes (expansion/shrinkage) depending on the casting and cooling time. Generally, fast casting with a cooling time of less than 15 minutes optimises stability.

 

The METACONCEPT Group collects used baths,off-cuts, scraps and white metal oxides. Contact our recycling department to find out more.

Characteristics

 

Item no.
Designation
Form
Solidus/Liquidus
Density g/cm3
Brinell hardness
Expansion in %*
Packaging
FB103300
CERRO® 103°
alloy
Small marked ingot
Around 1 kg
Eutectique 103°
8.67
14,2
+0,03
-0,02*
Bulk/Box
FB183300
CERRO® 103°
alloy
Small marked ingot
Around 1 kg
Eutectique 183°
8,78
NC
NC
Bulk/Box
FB124300
CERROBASE®
alloy
Small marked ingot
Around 1 kg
Eutectique 124°
10,3
10,2
-0,08
+0,22*
Bulk/Box
FB073300
CERROBEND®
alloy
Small marked ingot
Around 1 kg
70° – 73°
9,4
9,2
+0,25
+0,57*
Bulk/Box
FB170300
CERROCAST®
alloy
Small marked ingot
Around 1 kg
138°- 170°
8,2
22
-0,01
-0,01*
Bulk/Box
FB047300
CERROLOW® 47°
alloy
Small marked ingot
Around 1 kg
Eutectique 47°
8,9
12
+0,05
-0,02*
Bulk/Box
FB070300
CERROLOW® 70°
alloy
Small marked ingot
Around 1 kg
Eutectique 70°
9,73
14
+0,25
+0,57*
Bulk/Box
FB227300
CERROMATRIX®
alloy
Small marked ingot
Around 1 kg
103°- 227°
9,5
19
+0,08
+0,61*
Bulk/Box
FB090300
CERROSAFE®
alloy
Small marked ingot
Around 1 kg
70° – 90°
9,4
9
-0,04
+0,25*
Bulk/Box
FB096300
CERROSHIELD®
alloy
Small marked ingot
Around 1 kg
Eutectique 96°
9,87
14
-0,4
+0,25*
Bulk/Box
FB138300
CERROTRU®
alloy
Small marked ingot
Around 1 kg
Eutectique 138°
8,2
22
+0,07
+0,05*
Bulk/Box

*après 2mn 500h

CERRO® alloys

CERRO® alloys are non-ferrous, bismuth-based alloys with low melting temperatures. They are made exclusively from high-purity primary metals. They are unlikely to rust and can be reused or recycled. All other fusible alloys (temperatures between 38°C and 227°C) are available on request: such as alloys from Wood’s metal and Arcet’s metal. The METACONCEPT Group also manufactures small fusible parts for thermal purposes according to specifications.

Applications

 

Designation
Uses
Characteristics
CERROLOW® Very low melting temperature. Imprints, work with optical lenses CERRO® trademark®
CERROBEND® Tube bending, various types of settings, protective radiotherapy screen CERRO® trademark®
CERROSAFE® Sprinklers, imprints, models CERRO® trademark®
CERROMATRIX® Dies, anchorings and other fasteners CERRO® trademark®
CERROBASE® Dies CERRO® trademark®
CERROTRU® Moulds, models, dies, settings, electroforming mandrels
* Guaranteed to be lead-free and cadmium-free
CERRO® trademark®
CERROCAST® Moulds, models, dies, settings, electroforming mandrels
* Guaranteed to be lead-free and cadmium-free
CERRO® trademark®
CERROSHIELD® Protective radiotherapy screen CERRO® trademark

(*) Lead-free alloys – European standard no. 2000 / 53 / CE

Implementation

The product safety information sheet below is available upon request from the METACONCEPT Group.

The implementation method is specific to each workshop and depends on the alloy and its application.
In all cases, the metal needs to be placed in a crucible.
Bring the temperature of the alloy to 20°C above the temperature of its liquidus. You can then pour the molten metal into the mould prepared for this purpose.
Let it cool, taking into account possible expansion or shrinkage.
After use, the alloy may be re-melted and reused.
If this application is repeated frequently, it would be wise to contact the METACONCEPT Group so that they can conduct a metallurgical analysis and potential purification. Indeed, contaminants such as metal from the mould and oxidation from the surrounding air could slightly alter the composition of the alloy.

 

Precautions for use

To prevent burns caused by the molten metal, it is advisable to wear a protective apron, shoes, gloves, helmet and glasses.
Do not smoke at the workstation.
The workstation must be well ventilated.
Wash your hands when leaving the workstation.

Comments:
Contact our technical department to ascertain which product is most suited to your application.

All of the information contained in this document is provided for informational purposes only and the METACONCEPT
Group will not be held liable for it.