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