Tin powder is a low-melting-point metal powder for brazing applications, metallurgical powder mixtures and the manufacture of tin-containing materials. The tin powder from NMD Metalpowders has a tin content of over 99,9 %. With a melting point of around 232 °C, it is of particular interest for processes requiring a low-melting-point metallic component.
The appropriate powder grade depends on the intended application. In addition to purity, particle size, particle shape and surface condition all influence processing.
Technical properties
- Composition: Tin (Sn) with a purity of over 99.9 %.
- Melting point: Approximately 232 °C for pure tin.
- Particle shape: Spherical; this aids the dosing and distribution of the powder.
- Grain size: Matching the desired particle size fraction to the manufacturing process and the application.
Applications of tin powder
Soldering Techniques and Electronics
Tin is the base metal in many soft solders. Suitable tin powder can be used for pure-tin soldering applications and in appropriately formulated solder pastes. Tin-based alloy powders are used for many electronic assemblies, for example with silver and copper. The key factors are the requirements regarding melting behaviour, wetting and the final joint.
The composition best suited to your process can be narrowed down based on the materials to be joined and the brazing method. You can find an overview of suitable materials in our industrial solder powders.
Powder metallurgy and sintering processes
In powder metallurgy, tin powder is combined with copper powder, amongst other things, to produce tin-containing bronzes. The low-melting-point component influences the alloy formation and sintering behaviour. Such powder mixtures are used, for example, in bearing materials and other Sintered moulded parts used.
The properties of the finished component depend on the overall mixture, the tin content and the process conditions. A carefully formulated mix provides the basis for the desired strength, porosity and dimensional accuracy.
Materials development and additive manufacturing
Tin-based alloys are also used for the additive manufacturing Interesting. When developing suitable materials, tin can be considered as an alloying element. Whether elemental tin powder or a pre-alloyed powder is used depends on the material concept and the processing method.
The right powder quality for your process
When making a selection, the desired particle size distribution, permissible levels of foreign elements, and the requirements regarding flowability and surface condition should be specified. In the case of brazing pastes, it is also important to ensure compatibility with the flux system; for sintering applications, the interaction with the other powder components is paramount.
Please let us know your manufacturing process, the quantity required and the necessary material certificates. This will enable us to narrow down the most suitable powder grade for your application.
Enquire about tin powder from NMD Metalpowders
Tin powder offers a wide range of applications in soldering, sintering processes and alloy production. NMD Metalpowders combines many years’ experience in the metal powder industry with an international network of suppliers.
We can advise you on the choice of materials and assist with professional procurement in line with your technical requirements and the quantities you require.
Enquire about tin powder now and get personalised advice.
