Our Products
Our silver-based brazing alloys provide an ideal solution for high-quality brazing. They are offered in various formats to meet specific welding needs.
Our brazing products include:
- Brazing Alloys
- Cadmium-free Silver Based Alloys
- Copper Phosphorus
- Copper Phosphorus Silver Alloys
- Aluminium Alloys
- Brass Alloys
- Soft Solder
- Trifoils and Foils for Tooling and Electrical Applications
- Rings and Preforms
- Flux
Brazing alloys sare the optimum choice for a large range of industrial metal joining applications. The free-flowing properties of our brazing alloys, coupled with good joint strengths means that they find use when joining dissimilar parent metals (e.g. stainless steel, mild steels, brasses, bronzes and copper) in a wide range of environments, from industrial cooling to food and pharmaceutical manufacture.
The use of a suitable flux for the parent metal / brazing alloy combination is a requirement for these alloys.
The table below details the alloys that contain silicon and generally preferred by European manufacturers.
Thessco Grade | ISO 17672:2016 | Nominal Composition (%) | Melting Range (°C) | |||||
---|---|---|---|---|---|---|---|---|
Silver | Copper | Zinc | Tin | Silicon | Solidus | Liquidus | ||
CS114 | Ag 156Si | 56 | 22 | 17 | 5.0 | 0.15 | 620 | 655 |
CS111 | Ag 155Si | 55 | 21 | 22 | 2 | 0.15 | 630 | 660 |
CS91 | Ag 145Si | 45 | 27 | 25.5 | 2.5 | 0.15 | 640 | 680 |
CS81 | Ag 140Si | 40 | 30 | 28 | 2 | 0.15 | 650 | 710 |
CS77 | Ag 138Si | 38 | 32 | 28 | 2 | 0.15 | 650 | 720 |
CS71 | Ag 134Si | 34 | 36 | 27.5 | 2.5 | 0.15 | 630 | 730 |
CS61 | Ag 130Si | 30 | 36 | 32 | 2 | 0.15 | 665 | 755 |
CS51 | Ag 125Si | 25 | 40 | 33 | 2 | 0.15 | 680 | 760 |
The table below details the equivalent alloys which are silicon free and are generally preferred by UK manufacturers.
Thessco Grade | ISO 17672:2016 | Nominal Composition (%) | Melting Range (°C) | ||||
---|---|---|---|---|---|---|---|
Silver | Copper | Zinc | Tin | Solidus | Liquidus | ||
H12 | Ag 272 | 72 | 28 | 780 | 780 | ||
M26T | Ag 156 | 56 | 22 | 17 | 5.0 | 620 | 655 |
M25T | Ag 155 | 55 | 21 | 22 | 2 | 630 | 660 |
M15T | Ag 145 | 45 | 27 | 25.5 | 2.5 | 640 | 680 |
M10T | Ag 140 | 40 | 30 | 28 | 2 | 650 | 710 |
M8T | Ag 138 | 38 | 32 | 28 | 2 | 650 | 720 |
M4T | Ag 134 | 34 | 36 | 27.5 | 2.5 | 630 | 730 |
M0T | Ag 130 | 30 | 36 | 32 | 2 | 665 | 755 |
L18T | Ag 125 | 25 | 40 | 33 | 2 | 680 | 760 |