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EN ISO 3677 B-Ag72Cu-780 Ag-Cu Alloy Brazing/Soldering Wire

Description

Silver-Copper Alloy is widely used for welding various precise instrument.And also used in the contact wire of electrization railway,the contact of the air circuit breakers,voltage controller,telephone relays,contactors,starters devices, conductive ring and the fixed contacts,vacuum brazing , but also to manufacture coins, decorations and tableware.

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EN ISO 3677 B-Ag72Cu-780 Ag-Cu alloy brazing/Soldering Wire


Silver copper solder is a solder with silver solid solution, copper solid solution or Ag+Cu phase as the main body. It has excellent process performance, suitable melting point, good wettability and joint filling performance, high mechanical strength, good plasticity and excellent conductivity of brazing joints. It can be used to braze ferrous and non-ferrous metals, such as copper alloys and titanium alloys.Stainless steel, carbon steel, hard alloy and other materials. It is widely used in refrigeration, lighting, mechanical appliances, instrumentation, cutting tools, aerospace and other industries. Generally, in addition to brazing in a vacuum furnace or in a shielding gas, silver flux is required to obtain an excellent brazing joint.

The most common material is Ag72Cu28.

 

Equivalent:

GB/T 10046-2008: BAg72Cu

DIN EN 1044:AG 401

DIN 8513: L-Ag72

EN ISO 3677: B-Ag72Cu-780

AWS A 5.8:BAg-8


Diameter:0.4mm-2.5mm,Length:400-1000mm

Normal composition%


AgCuSnNiPbFeSbBi
AgCu496+/-0.34+0.3/-0.5

≤0.005≤0.05≤0.002≤0.002
AgCu595+/-0.35+0.3/-0.5

≤0.005≤0.05≤0.002≤0.002
AgCu7.592.5+/-0.37.5+0.3/-0.5

≤0.005≤0.1≤0.002≤0.002
AgCu8.491.6+/-0.38.4+/-0.5

≤0.005≤0.1≤0.002≤0.002
AgCu1090+/-0.310+/-0.5

≤0.005≤0.2≤0.002≤0.002
AgCu12.587.5+/-0.312.5+/-0.5

≤0.005≤0.2≤0.002≤0.002
AgCu2080+/-0.320+/-0.5

≤0.005≤0.2≤0.002≤0.002
AgCu2377+/-0.523+/-0.5

≤0.005≤0.2≤0.002≤0.002
AgCu2575+/-0.525+/-0.5

≤0.005≤0.2≤0.002≤0.002
AgCu2674+/-0.526+/-0.5

≤0.005≤0.2≤0.002≤0.002
AgCu2872+/-0.528+/-0.5

≤0.005≤0.2≤0.002≤0.002
AgCu5050+/-0.550+/-0.5

≤0.005≤0.25≤0.002≤0.002
AgCu991+/-0.299+0.2/-0.5





AgCu18Ni280+/-0.518+/-0.5/2+/-0.3




Physical and mechanical properties:

AlloyDensity
    (g/cm3)
Resistivity
    μΩ.m
Crystallizing   point (℃)Tensile Strength
    (Mpa)
Elongation
    (%)
BeginningEnding
AgCu289.90.022779779340-390≥17
AgCu509.30.025850779

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