Products

Lucas-Milhaupt offers the most comprehensive inventory of alloys and forms in the industry and our expertise in brazing and soldering ensures that we can find the best-matched products for your needs.

Technical Documentation

Visit our knowledge base for MSDS and other technical documentation.

Download Technical Documents

VTG/High Purity Silver, Gold, Palladium

These alloys are vacuum grade filler metals that have their compositions specifically controlled to fabricate joints exposed to high vacuum on electron devices. These alloys must be brazed in high purity atmosphere or vacuum. Premabraze® alloys consist of only certified "pure" materials, this metal is vacuum melted and cast to insure cleanliness.

Lucas-Milhaupt's pure metals are vacuum processed to ensure material cleanliness.Conformance to specification is assured by chemical analysis and other performance requirements. Several grades of these materials are available, from 3 nines to 5 nines pure.

* Login required for document download.

Product SolidusLiquidusNominal Composition, %AWS & International Standards Technical Documents* MSDS Safety Documents*
°F °C °F °C Ag Au Cu Ni Pd Other
Braze 503
<p>For electronic components where Cd and Zn are not desired.</p>		 1435 779 1600 870 50   50       BVAg-6b
Braze 604
<p>For vacuum tube seals - joins ferrous and nonferous alloys.</p>		 1115 600 1325 720 60   30     10 Sn
 		 BVAg-18
Braze 716
<p>For atmosphere brazing of Nickel & Ferrous-based metals.</p>		 1435 780 1465 795 71.5   28 0.5     BVAg-8b
Braze 717
<p>--</p>		 0 0 0 0                
Braze 721
<p>For joining nonferrous electric components in vacuum.</p>		 1435 780 1435 780 72   28       BVAg-8
Braze 999
<p>A VTG alloy for brazing ceramics to be used in semiconductors.</p>		 1761 961 1761 961 99.9           BVAg-0
Gold
<p>Very ductile - Wets most metals. Several grades available.</p>		 1947 1064 1947 1064   99.99          
Lithobraze 720
<p>For brazing in dry hydrogen or inert atmosphere - joins stainless.</p>		 1400 760 1400 760 71.7   28     0.3 Li
 		 BAg-8a
Lithobraze 925
<p>Recommended for furnace brazing of Stainless without flux.</p>		 1400 760 1635 890 92.5   7.3     0.2 Li
 		 BAg-19
Lucanex
<p>Brazing Paste Blended with Ti for active metal brazing of ceramics.</p>		 0 0 0 0              
 
Palladium
<p>High temperature brazing of refractory metals. Several grades available.</p>		 2826 1552 2826 1552         99.99    
Platinum
<p>Very high temperature - Several grades available.</p>		 3216 1767 3216 1767           99.99 Pt
 		  
Premabraze 051
<p>Narrow melting range - good for step brazing.</p>		 1625 885 1643 895 5 75 20        
Premabraze 127
<p>For Nickel, Mo, SS, Kovar®, and Mo-Mn metalized ceramics.</p>		 1785 974 1885 1029   35 62 3     BAu-3
Premabraze 131
<p>For vacuum applications - joins SS, Inconel, Kovar®, Tungsten, etc.</p>		 1740 949 1740 949     82 18     BVAu-4, AMS 4787
Premabraze 180
<p>Low penetration of substrates.</p>		 2246 1230 2255 1235         65 35 Co
 		  
Premabraze 265
<p>For SS, Cu, Kovar®, and non-Mo-Mn metallized ceramics.</p>		 1562 850 1662 900 65   20   15    
Premabraze 399
<p>For Copper, Nickel, Kovar®, and Mo-Mn metallized ceramics.</p>		 1815 991 1860 1016   37.5 62.5       BAu-1
Premabraze 402
<p>For Copper, Nickel, Kovar®, and Mo-Mn metallized ceramics.</p>		 1751 955 1778 970   50 50        
Premabraze 407
<p>For Copper, Nickel, Kovar®, and Mo-Mn metallized ceramics.</p>		 1814 990 1850 1010   35 65        
Premabraze 408
<p>Narrow melting range, useful in step brazing.</p>		 1535 835 1553 845 20 60 20        
Premabraze 409
<p>For Cu, Ni, Mo-Mn - remains ductile. Low vapor pressure.</p>		 1670 910 1697 925   81.5 16.5 2      
Premabraze 500
<p>High strength and good oxidation resistance, for joining Super Alloys.</p>		 2016 1102 2050 1121   50   25 25   BVAu-7, AMS 4784
Premabraze 540
<p>Similar to Au-Ni - lower cost and density. Doesn't embrittle Kovar®.</p>		 1652 900 1740 950 54   21   25   BVAg-32
Premabraze 550
<p>For corrosion resistance joints - Brazing stainless steel.</p>		 1520 827 1600 871 55   30 5 10    
Premabraze 580
<p>For Nickel, Copper, Kovar® and Mo-Mn. Good for vacuum tight joints.</p>		 1515 824 1566 852 58   32   10   BVAg-31
Premabraze 616
<p>For joining ferrous and nonferrous metals in moderate temp vaccum.</p>		 1155 625 1305 705 61.5   24     14.5 In
 		 BVAg-29
Premabraze 631
<p>Low melting, low vapor pressure. Joins ferrous and nonferrous metals.</p>		 1265 685 1346 730 63   27     10 In
 		  
Premabraze 680
<p>For Kovar® and Mo-Mn seals.</p>		 1485 807 1490 810 68   27   5   BVAg-30
Premabraze 700
<p>For Super Alloys and stainless - high ductility and strength.</p>		 1845 1007 1915 1046   70   22 8   BAu-6, AMS 4786
Premabraze 800
<p>Low ductility alloy - low vapor pressure.</p>		 536 280 536 280   80       20 Sn
 		  
Premabraze 880
<p>Low ductility alloy.</p>		 673 356 673 356   88       12 Ge
 		 BVAu-7
Premabraze 901
<p>Recommended for Ni, stainless steel, Mo, W and fast cycles on Ti.</p>		 1835 1002 1950 1065 90       10    
Silver
<p>Available in several grades including (99.9, 99.93, 99.95, 99.99).</p>		 1761 961 1761 961 99.99