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Help Me Find The Right Alloy
Silver Brazing Alloys Reference Chart
  • Chemical and Physical Properties
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  • Suggested Applications b
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    AWS A5.8

    Product name

    		 Nominal Chemical Composition %  Melt  ºF Flow ºF Density Color H & H JW Harris AMS Stock Item Description
    Ag Cu Zn Cd P Ni Sn

    Phos Copper SilverAlloys
    BCuP-2 PhosCopper 0 0 92.75     7.25     1310 1350 4.17 (.286) Copper Yellow Fos-Flo 7 Harris 0   Very fluid, fast flow and economical.  Used with copper, brass, and bronze base metal with recommended joint clearance .001" to .003". 
    BCuP-6 PhosCopper 2 2 91     7     1190 1300 4.21 (.289) Light Copper Sil-Fos 2 Stay-Silv 2   Silver addition lowers solidus temperature, not as fluid as PhosCopper 0, gap clearance .001" to .003".
    BCuP-3 PhosCopper 5 5 89     6     1190 1325 4.29 (.294) Light Copper Sil-Fos 5 Stay-Silv 5   Used when gap clearance range is .003 to .006". Ideal for larger copper pipe sizes.
    BCuP-7 PhosCopper 5F 5 88.25     6.75     1190 1300 4.29 (.294) Light Copper Stay-Silv 5HP Stay-Silv 5HP   For copper, brass or bronze. Slightly more fluid than PhosCopper 5 and PhosCopper 15. Used as preform rings for heat exchangers.
    - PhosCopper 6D 6 87.9     6.1     1190 1465 4.29 (.294) Light Copper   Dynaflow   Developed to mimic performance of the PhosCopper 15 alloy at lower cost.
    BCuP-4 PhosCopper 6F 6 86.75     7.25     1190 1275 4.29 (.294) Light Copper Sil-Fos 6 Stay-Silv 6HP   Reasonably fluid, similar to PhosCopper 0 in joint clearance of .001 to .003". Ideal flow as preform.
    BCuP-5 PhosCopper 15 15 80     5     1190 1300 4.45 (.305) Light Copper Sil-Fos Stay-Silv 15   Reasonably fluid, similar to PhosCopper 0 in joint clearance of .001 to .003". Ideal flow as preform.
    - PhosCopper 18M 18 75.75     6.25     1190 1220 4.45 (.305) Light Yellow         Automatic brazing of copper and copper products.

    Cadmium Bearing SilverAlloys
    - SilverAlloy Cd-20 20 45 30 5       1140 1500 4.63 Light Yellow         Low silver at expense of broad melt range. Require rapid heating to prevent liquation.
    BAg-27 SilverAlloy Cd-25 25 35 26.5 13.5       1125 1375 4.71 Light Yellow Easy-Flo 25       Less silver than SilverAlloy Cd-30 at the expense of increased melt temperature and range.
    BAg-33 SilverAlloy Cd-25L 25 30 27.5 17.5       1125 1260 4.67 Light Yellow         Similar to SilverAlloy Cd-25  but requires better heat control. Reduced melt range but more prone to oxidation.
    BAg-2a SilverAlloy Cd-30 30 27 23 20       1125 1310 4.79 Light Yellow Easy-Flo 30     Less silver than SilverAlloy Cd-35 at the expense of increased melt temperature and range.
    BAg-2 SilverAlloy Cd-35 35 26 21 18       1125 1295 4.84 Light Yellow Easy-Flo 35   4768 Broader melt range than SilverAlloy Cd-45.  Suitable for larger gap clearance and easier filleting.
    BAg-1 SilverAlloy Cd-45 45 15 16 24       1125 1145 4.96 Light Yellow Easy-Flo 45   4769 Lowest melting range in joining ferrous, non-ferrous and dissimilar metals with close joint clearance requirement.
    BAg-1a SilverAlloy Cd-50 50 15.5 16.5 18       1160 1175 4.98 Light Yellow Easy-Flo 50   4770 Similar to SilverAlloy Cd-45 properties with narrower melt range. Used on same base metals.
    BAg-3 SilverAlloy Cd-50Ni3 50 15.5 15.5 16   3   1170 1270 5.02 Light Yellow Easy-Flo 3   4771 Similar to SilverAlloy Cd-45 properties with narrower melt range. Used on same base metals.

    Cadmium Free SilverAlloys
    - SilverAlloy A-5 5 58 37         1545 1615 4.47 Brass Yellow         Used for simultaneous brazing and heat-treating of steels.  Improved ductility to the brass brazing alloys.
    - SilverAlloy A-9 9 53 38         1410 1565 4.49 Brass Yellow         Good color match to band instruments and other brass assemblies.  Compatible to heat-treat cycles of carbon steel.
    - SilverAlloy A-20 20 45 35         1315 1500 4.58 Brass Yellow         Excellent temperature match to heat treatment of carbon steels.  Good color match to yellow brass assemblies.
    - SilverAlloy A-25 25 52.5 22.5         1250 1575 4.71 Brass Yellow         Less silver than SilverAlloy A-30 at the expense of increased melt temperature and range. Moderate ductility.
    BAg-37 SilverAlloy A-25T 25 40 33       2 1265 1420 4.62 Light Yellow Braze 255 Safety-Silv 25     Least silver of the Ag-Cu-Zn-Sn family.  Moderate ductility limits joint design and application.
    BAg-20 SilverAlloy A-30 30 38 32         1250 1410 4.66 Light Yellow Braze 300 Safety-Silv 30   Good for HVAC assemblies where higher temperatures can be employed.  Good for copper, nickel-silvers, and other non ferrous alloys.
    BAg-35 SilverAlloy A-35 35 32 33         1260 1390 4.67 Light Yellow   Safety-Silv 35   Dissimilar metals brazing in refrigeration tubing. Moderate melt temperature for ferrous and non-ferrous alloys.
    BAg-34 SilverAlloy A-38T 38 32 28       2 1200 1330 4.77 Light Yellow Braze 380 Safety-Silv 38T 4761 Similar melt temperatures to cadmium-bearing SilverAlloy Cd-30 and SilverAlloy Cd-35. Suitable for ferrous and non-ferrous metals.
    - SilverAlloy A-40 40 36 24         1235 1415 4.79 Yellow White - -   For nickel, steel and copper alloys, good wide gap filling characteristics.
    BAg-4 SilverAlloy A-40Ni2 40 30 28     2   1220 1435 4.76 Light Yellow Braze 403 Safety-Silv 40N2   Good corrosion properties with stainless steels.  Often used in joining of tungsten carbides.
    - SilverAlloy A-40Ni5 40 30 25     5   1220 1580 4.81 White Braze 404 Safety-Silv 40N5     Similar applications as SilverAlloy A-40Ni2 and A-50Ni2. with broader melt range for better gap filling characteristics.
    - SilverAlloy A-40L 40 30.5 29.5         1245 1340 4.63 Yellow   -     Narrower melt range suitable for furnace brazing of steel, nickel, copper alloys. Good ductility.
    BAg-28 SilverAlloy A-40T 40 30 28       2 1200 1310 4.76 Light Yellow Braze 402 Safety-Silv 40T   Intermediate melt temperatures of the tin containing family. Used in joining ferrous and non ferrous.
    BAg-5 SilverAlloy A-45 45 30 25         1225 1370 4.8 Yellow White Braze 450 Safety-Silv 45   General purpose alloy for brazing of ferrous and non-ferrous metals. Excellent replacement to Cd containing alloys.
    BAg-36 SilverAlloy A-45T 45 27 25       3 1195 1270 4.72 Pale Yellow Braze 452 Safety-Silv 45T   Good for dissimilar metals with moderate flow characteristics.
    BAg-6 SilverAlloy A-50 50 34 16         1250 1425 4.92 Yellow White Braze 501 Safety-Silv 50   Widely used for electrical applications and in joining dissimilar metals.
    BAg-24 SilverAlloy A-50Ni2 50 20 28     2   1220 1305 4.73 White Braze 505 Safety-Silv 50N 4788 Used with 300 series stainless in Food, Medical and Dental fields. Good Cd free alternative for SilverAlloy Cd-50Ni3 in carbide brazing.
      SilverAlloy A-50T 50 22 25       3 1190 1230 4.8 Pale Yellow - -   Similar to SilverAlloy A-56T at expense of increased melt temperature and range.
    BAg-13 SilverAlloy A-54Ni1 54 40 5     1   1325 1575 5.07 White Braze 541 Safety-Silv 54 4772 Low zinc suitable for furnace brazing.  Good for elevated service temperatures to 700 ºF. used for carbon assemblies.
    BAg-7 SilverAlloy A-56T 56 22 17       5 1145 1205 4.96 White Braze 560 Safety-Silv 56 4763 Low zinc suitable for furnace brazing.  Good for elevated service temperatures to 700 ºF. used for carbon assemblies.
      SilverAlloy A-60 60 25 15         1245 1345 5.02 White - -     Similar to SilverAlloy A-65. Good for nickel and silver alloys.
    BAg-9 SilverAlloy A-65 65 20 15         1240 1325 5.06 White Braze 650 Safety-Silv 65     Third lowest melt alloy of the "Silversmith Alloys". Good color match to silver.
    BAg-10 SilverAlloy A-70 70 20 10         1275 1360 5.15 White Braze 700 Safety-Silv 70     Used on sterling silver, next lower melt temperature below SilverAlloy A-75 in step brazing.
      SilverAlloy A-75 75 22 3         1365 1450 5.24 White -       Used on sterling silver. Excellent color match to silver, highest melting of "Silversmith Alloys".

    Cd/Zn Free SilverAlloys
      SilverAlloy B-7T 7 85         8 1225 1805 4.8 Yellow Braze 852 Safety-Silv 85     Good for vacuum and atmosphere brazing.  A replacement to copper braze when lower melt temperature is required.
    BAg-13a SilverAlloy B-56Ni2 56 42       2   1420 1640 5.14 White Braze 559 - 4765 Good for elevated application to 700 ºF. Low zinc content reduces zinc deposit within furnace during brazing operation.
    BAg-18 SilverAlloy B-60T 60 30         10 1115 1325 5.17 White Braze 603 Safety-Silv 60T 4773   Good for elevated application to 700 ºF. Low zinc content reduces zinc deposit within furnace during brazing operation.
    BAg-8 SilverAlloy B-72 72 28           1435 1435 5.24 White - -   Good for atmosphere and vacuum furnace brazing of ferrous and non-ferrous alloys. Used in critical electronic and aerospace brazements.
      SilverAlloy B-72Ni 71.5 28       0.5   1435 1450 5.27 White Braze 559 Safety-Silv 56N     Similar to SilverAlloy B-72 Cd Free with nickel addition to impart improved corrosion properties with stainless steel.
      SilverAlloy Z-75 75   25         1300 1345 5.06 White Braze 630 Safety-Silv 63T     Joining of steel and stainless steel assemblies that come into contact with ammonia (NH3).
    Layered SilverAlloys
      Layermet A-40Ni2               1220 1435     Trimet 201     Similar to Layermet A-50Ni2 with higher brazing temperature, also exhibit good strength and wetting action on carbide.
      Layermet A-40Ni5               1220 1580     Trimet 202     Similar to Layermet A-40Ni2 with higher nickel for strength and corrosion resistance.
      Layermet A-50Ni2               1220 1305     Trimet 259     A popular cadmium-free tri-layered silver-copper-silver strip in 1/2/1 ratio that delivers superb performance in carbide brazing applications.
      Layermet Cd-50Ni3               1170 1207     Trimet 258     A cadmium bearing Layermet with exceptional strength, flow characteristics, and extremely low brazing temperature.
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