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Braze Powder & Paste
WAMBRAZE™ solder paste and powder conform to AST/AWS specifications.
Williams Advanced Materials proprietary process yields WAMBRAZE™ Braze Powder and Paste with exceptional spherical shaped particles, low carbon and oxygen levels, and total impurity levels below 100 ppm. Solder paste is a good solution where traditional preforms are not practical because of size or geometry limitations. Both solder paste and braze powder materials are satellite free, meet typical vacuum tube grade requirements and conform to AST/AWS braze specifications. Particles can be custom blended to meet any mesh designation. Standard mesh sizes conform to AWS specifications and range in mesh size from 100/+400, -140/+200 to -200/+325 to -325.
WAMBRAZE™ Powder and Paste
Williams offers a wide range of solder/braze alloy powders and paste, in a variety of sieve and mesh sizes for electronic packaging and high temperature joining vacuum electron devices.
WAMBRAZE™ Powder Attributes
Spherical Shaped Particles
Satellite Free
Low Carbon & Oxygen
Meets Typical Vacuum Tube Grade Requirements
Total Impurity Levels Below 100ppm
Passes Melt Cleanliness & Spatter Testing
Free Flowing Powder
Conforms to ASTM/AWS Braze Specifications
WAMBRAZE™ Paste Attributes
Organic, non-solvent based, binder
Virtually no-clean joint formation
Customized particle distribution, viscosity and metal/binder ratio
Variety of packaging options
SIEVE AND MESH SIZES
Williams can custom blend sieve sizes to any mesh designation.
Williams Standard Mesh Sizes Conform to AST/AWS Specifications
Mesh Size |
-100/+140 |
-140/+200 |
-200/+325 |
-325 |
100 |
40% |
40% |
5% |
15% |
140C |
5% |
50% |
25% |
20% |
140F |
0% |
25% |
25% |
50% |
200 |
0% |
5% |
35% |
60% |
325 |
0% |
0% |
5% |
95% |
Particle Size vs. Sieve Size (per ASTM-E11)
Sieve Designation |
Nominal Sieve Opening |
100 |
150 um |
140 |
106 um |
200 |
75 um |
325 |
45 um |
400 |
38 um |
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WAMBRAZE™ powders and paste are available in the following materials:
WAMBRAZE ™ |
Nominal Composition % |
Liquidus |
Solidus |
Compare To 1 |
AWS/AMS Numbers |
C |
F |
C |
F |
WB1169 |
Au 30, Pd 34, Ni 36 |
1169 |
2136 |
1135 |
2075 |
Palniro 4 |
AWS BAu-5 |
WB1121 |
Au 50, Pd 25, Ni 25 |
1121 |
2050 |
1102 |
2016 |
Palniro 1 |
AMS 4784;
AWS BVAu-7 |
WB1078 |
Au 10, Cu 90 |
1078 |
1972 |
1063 |
1945 |
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WB1037 |
Au 70, Ni 22, Pd 8 |
1037 |
1899 |
1005 |
1841 |
Palniro 7 |
AMS 4786;
AWS BAu-6 |
WB1030 |
Au 35, Cu 62, Ni 3 |
1030 |
1886 |
1000 |
1832 |
Nicoro |
AWS BAu-3 |
WB1025 |
Au 20, Cu 78, In 2 |
1025 |
1877 |
975 |
1787 |
Incuro 20 |
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WB1010 |
Au 35, Cu 65 |
1010 |
1850 |
990 |
1814 |
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WB1005 |
Au 37.5, Cu 62.5 |
1005 |
1841 |
985 |
1805 |
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AWS BAu-1 |
WB1004 |
Au 35.25, Cu 31, Ni 14, Pd 10, Mn 9.75 |
1004 |
1840 |
971 |
1780 |
RI46 |
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WB1000 |
Au 40, Cu 60 |
1000 |
1832 |
975 |
1796 |
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WB975 |
Cu 87.75, Ge 12, Ni .25 |
975 |
1787 |
880 |
1616 |
Gemco |
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WB970 |
Au 50, Cu 50 |
970 |
1778 |
955 |
1751 |
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WB955 |
Au 82, Ni 18 |
955 |
1751 |
955 |
1751 |
Nioro |
AWS BAu-4;
AMS 4787 |
WB950 |
Ag 54, Cu 21, Pd 25 |
950 |
1742 |
900 |
1652 |
Palcusil 25 |
AWS BVAg-32 |
WB949 |
Au 31, Cu 33.5, Ni 9.75, Pd 9.75, Mn 16 |
949 |
1740 |
927 |
1700 |
RI49 |
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WB925 |
Au 81.5, Cu 16.5, Ni 2 |
925 |
1697 |
910 |
1670 |
Nicoro 80 |
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WB910 |
Au 80, Cu 20 |
910 |
1670 |
908 |
1666 |
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AWS BAu-2 |
WB895 |
Au 75, Cu 20, Ag 5 |
895 |
1643 |
885 |
1625 |
Silcoro 75 |
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WB894 |
Ag 56, Cu 42, Ni 2 |
894 |
1640 |
772 |
1420 |
Nicusil 8 |
AWS BAg-13a;
AMS 4765 |
WB880 |
Ag 82, Pd 9, Ga 9 |
900 |
1652 |
850 |
1562 |
Gapasil 9 |
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WB853 |
Ag 58, Cu 32, Pd 10 |
853 |
1566 |
824 |
1515 |
Palcusil 10 |
AWS BVAg-31 |
WB850 |
Ag 65, Cu 28, Mn 5,Ni 2 |
850 |
1560 |
750 |
1385 |
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WB845 |
Au 60, Cu 20, Ag 20 |
845 |
1553 |
835 |
1535 |
Silcoro 60 |
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WB814 |
Ag 68, Cu 27, Pd 5 |
814 |
1490 |
794 |
1463 |
Palcusil 5 |
AWS BVAg-30 |
WB795 |
Ag 71.15, Cu 28.1, Ni .75 |
795 |
795 |
780 |
1436 |
Nicusil 3 |
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WB780 |
Ag 72, Cu 28 |
780 |
1436 |
780 |
1436 |
Cusil, BT |
AWS BAg-8 |
WB760 |
Ag 68, Cu 27, Sn 5 |
760 |
1400 |
743 |
1369 |
Cusiltin 5 |
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WB718 |
Ag 60, Cu 30, Sn 10 |
718 |
1324 |
602 |
1116 |
Cusiltin 10 |
AMS 4773;
AWS BAg-18 |
WB705 |
Ag 61.5, Cu 24, In 14.5 |
705 |
1301 |
630 |
1166 |
Incusil 15 |
AWS BVAg-29 |
WB487 |
Au 81, In 19 |
487 |
909 |
487 |
909 |
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WB363 |
Au 96.85, Si3.15 |
363 |
682 |
363 |
682 |
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WB361 |
Au 88, Ge, 12 |
361 |
682 |
361 |
682 |
GEORO |
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WB280 |
Au 80, Sn 20 |
280 |
536 |
260 |
536 |
ORTIN |
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1 The competing products listed by the trademarks of their supplier are for industry reference and comparison purposes only. None of the competing products, which are subject to change by their supplier, are available from Williams Advanced Materials. No claim is made by this listing that such supplier endorses any products made by Williams Advanced Materials. Note: With the exception of RI 46 and RI 49 all other names are trademarks of Wesgo Inc. and Morgan Crucible Company plc. |
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