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Silver Solder

The effect of the EU, UK driven, ban on the sale of cadmium bearing silver solder has taken effect.
It is only available to residents and companies customers outside the EU
Stocks at all levels are depleted. You are now compelled to buy cadmium free alloys.

The most popular alloys are 455, 445, 438, 434, 430 and 424. All will produce strong, leaktight joints with small neat fillets.
They will still give you what you want.
All will join copper, brass, bronze, mild and stainless steel, nickel alloys in any combination.

Your will make your choice based your considering the melting temperature or colour or alloy content or price.

It will not be based on joint strength. If used properly all will produce joints stronger than the parent materials.

If you feel that this range of alloys does not quite fit your requirements, look at the full range of silver solders in the "Industrial" section. We can normally arrange something to suit.

For flux details and prices visit "silver solder fluxes"

424

424 contains 24% silver and is cadmium free.
Melting Range 740 - 780 °C It is often used in the first operation of step brazing when several joints are made in close proximity.
It is available as rod 1.5mm dia. Its high melting point often requires the use of oxy-acetylene heating.
Use it with our HT5 flux

430

430 contains 30% silver
It conforms to ISO 17672 Ag130. Melting Range 665 - 755 °C

438

438 is another cadmium free alloy containing 38% silver.
It conforms to ISO 17672 Ag 138 Melting Range 650 - 720 °C
It is used as either the second of three or first of a two stage brazing operation.
Although it contains more silver, it offers considerable advantages in that it can be more readily melted with a propane torch and you can use the ordinary conventional flux. No duplication.
It is available as rod 1.0, 1.5, 2.0, 2.5mm dia.

445

445 contains 45% silver
It conforms to ISO 17672 Ag145. Melting Range 640 - 680 °C
It has reasonable fluidity, produces small neat fillets.
It probably offers more "invisible" joints on polished brass

455

455 is cadmium free and contains 55% silver and is the most popular.
It conforms to IS0 17672 Ag 155 Melting range 630 - 660 °C.

It has the lowest melting range, good fliudity and produces small neat fillets.
It offers a reasonable colour match on stainless steel.
It is available as 0.5mm dia wire and rod 1.0, 1.5, 2.0, 2.5mm dia.

For prices refer to the "Small Packs - Prices"

They include VAT and P&P

As with all silver solders, use them in well ventilated areas.
Do not overheat the alloy or flux. Refer to the section on Silver Soldering Tips and Health & Safety.

Alloy Product List

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