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Lucas-Milhaupt BRAZE 721 (VTG) Grade 2 Silver Based Cadmium Free Filler Metal

Category Metal , Nonferrous Metal , Precious Metal , Silver Alloy , Solder/Braze Alloy
Manufacturer Lucas-Milhaupt
Trade Name BRAZE
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Lucas-Milhaupt BRAZE 721 (VTG) Grade 2 Silver Based Cadmium Free Filler Metal.pdf
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Material Notes:
Applications: Braze 721, a VTG version of Braze 720, is designed for all types of moderate temperature vacuum systems and particularly where maximum precautions must be taken to insure the presence of only a minimum amount of detrimental volatile impurities. Specifications: This filler metal conforms to the following specifications: AWS A5.8 BVAg-8 Grade 2, ASME Boiler & Pressure Vessel Code, Sec. II-C, SFA 5.8 BAg-8 Information provided by Lucas-Milhaupt, Inc.
Physical Properties Metric English Comments
Density 9.96 g/cc
0.360 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 - 345 MPa
35000 - 50000 psi
Brass butt joint
Thermal Properties Metric English Comments
Melting Point 779.4 °C
1435 °F
Solidus 779.4 °C
1435 °F
Melting Point
Liquidus 779.4 °C
1435 °F
Flow Point
Component Elements Properties Metric English Comments
Cadmium, Cd <= 0.0020 %
<= 0.0020 %
Carbon, C <= 0.0050 %
<= 0.0050 %
Copper, Cu >= 26.907 %
>= 26.907 %
Lead, Pb <= 0.0020 %
<= 0.0020 %
Other, each <= 0.012 %
<= 0.012 %
Other, total <= 0.050 %
<= 0.050 %
Phosphorous, P <= 0.020 %
<= 0.020 %
Silver, Ag 71 - 73 %
71 - 73 %
Zinc, Zn <= 0.0020 %
<= 0.0020 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.00000220 ohm-cm
0.00000220 ohm-cm
Processing Properties Metric English Comments
Processing Temperature 788 - 927 °C
1450 - 1700 °F
Brazing Range
Descriptive Properties Value Comments
Color White
Corrosion Resistance 0.28 Mgs/dcm2/Day
Wet/Ammonia Gas, room temperature, closed container
nil
Dry Ammonia Gas, room temperature, closed container
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