COPPER-PHOSPHORUS ALLOYS AND COPPER ALLOYS

We supply a full range of brazing alloys and fluxes and help you choose the right product
as well as optimize your production process.

Copper-phosphorus and silver-copper-phosphorus alloys are essential
in the refrigeration and HVAC industry.

In recent decades, this field has been at the centre of a major evolution, evolving
into a branch of industry of global importance.

This is why we are constantly developing new brazing alloys for components
of refrigeration and air-conditioning circuits, tackling the challenges
thrown up by new refrigerants and new types of systems.

APPLICATIONS

Air-conditioning systems
Heat exchangers
Heating systems
Tapware

PHOSPHORUS-CONTAINING BRAZING ALLOYS FOR COPPER AND COPPER ALLOYS

3 Leghe Rame Fosforo1

Phosphorus-containing Brazing Alloys for Copper and Copper Alloys Phosphorus-containing brazing alloys can generally be used for service temperatures ranging from -55°C to +150°C.

They were specially developed for joining copper with copper, or copper with its alloys (brass, bronze).
When copper is brazed with copper, there is no need to use flux given the alloy’s phosphorus content.
Brazing copper with copper alloys instead requires the use of flux.

The use of these alloys is not recommended for producing joints that are in contact with sulphur:
if sulphuric acid were to form, it would damage the joints brazed with this type of alloy.

In addition, the use of these alloys is not recommended for
brazing nickel alloys and steel as intermediate phases can form that make the joint fragile.

Alloys S2 and S94 are
DVGW approved for the installation of copper pipes.

MAIN PROPERTIES

ALLOY% Ag% Cu% P% Sn% SiMELTING RANGE (C°)WORKING TEMPERATURE (C°)DIN EN 1044ISO 17672TECHNICAL DATASHEET
S 1818757--645650CP 101CuP 286
S 1515805--645 - 800700CP 102CuP 284
S 1010resto6--650 - 750720--
S 66877--645 - 720--CuP283
S 5 special5resto6-0,001-0,05645 - 815710CP 104CuP 281 a
S 55896--645 - 815710CP 104CuP 281 a
S 55896--645 - 815710CP 104CuP 281
S 2 special2resto6.3-0,001-0,05645 - 825740CP 105CuP 279
S 2291.76.3--645 - 825740CP 105CuP 279
S2 AS2resto7--643-788732-CuP 280
S 6060.693.26.2--710 - 870---
S 8050.5927.5--710 - 870---
S 8020.291.97.9--715 - 875---
S 94-93.86.2--710 - 890760CP 203CuP 179
S 93 special-resto7-0,001-0,05710 - 820730CP 202CuP 180
S 93-937--710 - 820730CP 202CuP 180
S 92-92.27.8--710 - 770720CP 201CuP 182
S 86-86.26.87-650 - 700700CP 302CuP 386
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