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Lucas-Milhaupt BRAZE 300 Silver Based Cadmium Free Filler Metal

Category Metal , Nonferrous Metal , Copper Alloy , Precious Metal , Silver Alloy , Solder/Braze Alloy
Manufacturer Lucas-Milhaupt
Trade Name BRAZE
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Lucas-Milhaupt BRAZE 300 Silver Based Cadmium Free Filler Metal.pdf
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Material Notes:
Characteristics: Braze 300 is an intermediate temperature silver brazing alloy with a fairly long (160EF/70EC) melting range. This long melting range is helpful when wide gap joints are brazed and is useful in producing large joint fillets to reduce the notch effect in stressed assemblies. Where the higher brazing temperature and characteristics of this alloy are permissible, the lower silver content affords a saving. Handy Flux should be used with this alloy. Applications:Braze 300 is a good general purpose, intermediate temperature brazing alloy for use on copper, brass, nickel-silver, bronze, steel and other nonferrous alloys melting above 1450EF (765EC). Uses include the brazing of nickel-silver hollow knife handles and electrical equipment. It is particularly adaptable to metal bath dip brazing of fine wires for radio, small transformer and electronics assemblies because its flow point matches the fluid temperature of borax. Borax is used as a metal bath flux cover because it is less corrosive to ceramic pot linings than Handy Flux. Braze 300 exhibits better stability than lower melting alloys when used for metal bath dip brazing. Specifications:This alloys conforms to the following specifications-AWS A5.8 BAg-20, ASME Boiler & Pressure Vessel Code Sec II-C, SFA-5.8 BAg-20 Information provided by Lucas-Milhaupt, Inc.
Physical Properties Metric English Comments
Density 8.84 g/cc
0.319 lb/in³
Mechanical Properties Metric English Comments
Tensile Strength at Break 207 - 241 MPa
30000 - 35000 psi
Copper butt joint
241 - 276 MPa
35000 - 40000 psi
Nickel-Silver butt joint
241 - 310 MPa
35000 - 45000 psi
Brass butt joint
Elongation at Break 7.0 - 17 %
7.0 - 17 %
% in 2", Nickel-Silver butt joint
15 - 25 %
15 - 25 %
% in 2", Copper butt joint
16 - 31 %
16 - 31 %
% in 2", Brass butt joint
Thermal Properties Metric English Comments
Melting Point 677 - 766 °C
1250 - 1410 °F
Solidus 677 °C
1250 °F
Melting Point
Liquidus 766 °C
1410 °F
Flow Point
Component Elements Properties Metric English Comments
Copper, Cu 37 - 39 %
37 - 39 %
Other, total <= 0.15 %
<= 0.15 %
Silver, Ag 29 - 31 %
29 - 31 %
Zinc, Zn 31 - 33 %
31 - 33 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.00000685 ohm-cm
0.00000685 ohm-cm
Descriptive Properties Value Comments
Color Light Yellow
Corrosion Resistance 1115.5 Mgs/dcm2/Day
5% Sulphuric Acid Solution, 160°F, Constant Immersion
13.9 Mgs/dcm2/Day
20% Sulphuric Acid Solution, Room Temperature, Constant Immersion
15.57 Mgs/dcm2/Day
5% Sulphuric Acid Solution, Room Temperature, Constant Immersion
15.7 Mgs/dcm2/Day
10% Sulphuric Acid Solution, Room Temperature, Constant Immersion
181.1 Mgs/dcm2/Day
20% Sulphuric Acid Solution, 160°F, Constant Immersion
207.6 Mgs/dcm2/Day
10% Sulphuric Acid Solution, 160°F, Constant Immersion
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