Go to section:

 

 
PhosCopper SilverAlloys

AWS A5.8	Aufhauser Product name	Nominal Chemical Composition %				Solidus/ Liquidus	Flow	Density TO/Cu.In	Electrical Conductivity (%IACS)	Color	AMS	DIN 8513	EN 17672	Description
		Ag	Cu	P	Other
BCuP-2	PhosCopper 0	0	92.75	7.25	-	1310/1460°F 710/793°C	1350°F 732°C	4.170	7.5	Copper Yellow		L-CuP7	CuP 180	Very fluid, fast flow and economical. Used with copper, brass, and bronze base metal with recommended joint clearance 0.001" to 0.003".
BCuP-6	PhosCopper 2	2	91	7	-	1190/1450°F 643/788°C	1300°F 704°C	4.198	5.5	Light Copper		L-Ag2P	CuP 279	Silver addition lowers solidus temperature, not as fluid as PhosCopper 0, gap clearance 0.001" to 0.003".
BCuP-3	PhosCopper 5	5	89	6	-	1190/1495°F 643/813°C	1325°F 718°C	4.284	9.6	Light Copper		L-Ag5P	CuP 281	Used when gap clearance range is 0.003" to 0.006". Ideal for larger copper pipe sizes.
BCuP-7	PhosCopper 5HP	5	88.25	6.75	-	1190/1420°F 643/771°C	1300°F 704°C	4.231		Light Copper				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	-	1190/1440°F 643/782°C	1465°F 796°C	4.289	8.8	Light Copper				Developed to mimic performance of the PhosCopper 15 alloy at lower cost.
BCuP-4	PhosCopper 6HP	6	86.75	7.25	-	1190/1325°F 643/718°C	1275°F 691°C	4.202		Light Copper			CuP 283	Reasonably fluid, similar to PhosCopper 0 in joint clearance of 0.001" to 0.003". Ideal flow as preform.
BCuP-5	PhosCopper 15	15	80	5	-	1190/1475°F 643/802°C	1300°F 704°C	4.415	9.9	Light Copper		L-Ag15P	CuP 284	Reasonably fluid, similar to PhosCopper 0 in joint clearance of 0.001 to 0.003". Ideal flow as preform.
-	PhosCopper 18M	18	75.75	6.25	-	1190/1220°F 643/660°C	1220°F 660°C	4.45		Light Yellow			CuP 286	Automatic brazing of copper and copper products.

 
Cadmium-Bearing SilverAlloys

AWS A5.8	Product name	Nominal Chemical Composition %					Solidus/ Liquidus	Flow	Density TO/Cu.In	Electrical Conductivity (%IACS)	UNS	AMS	DIN 8513	EN 17672	Description
		Ag	Cu	Zn	Other	Ni
	SilverAlloy Cd-20	20	37.9	28	14 Cd	-	1148/1382°F 620/750°C						L-Ag20Cd
BAg-27	SilverAlloy Cd-25	25	35	26.5	13.5 Cd	-	1125/1375°F 607/746°C	1375°F 746°C	4.71	29.7					Less silver than SilverAlloy Cd-30 at the expense of increased melt temperature and range. Light Yellow.
BAg-33	SilverAlloy Cd-25L	25	30	27.5	17.5 Cd	-	1125/1310°F 607/710°C	1260°F 682°C	4.538		P07252		L-Ag25Cd	Ag 326	Similar to SilverAlloy Cd-25 but requires better heat control. Reduced melt range but more prone to oxidation. Light Yellow.
BAg-2a	SilverAlloy Cd-30	30	27	23	20 Cd	-	1125/1310°F 607/710°C	1310°F 710°C	4.618	31			L-Ag30Cd	Ag 330	Less silver than SilverAlloy Cd-35 at the expense of increased melt temperature and range. Light Yellow.
BAg-2	SilverAlloy Cd-35	35	26	21	18 Cd	-	1125/1295°F 607/702°C	1295°F 702°C	4.84	28.5	P07350	4768	L-Ag34Cd	Ag 335	Broader melt range than SilverAlloy Cd-45. Suitable for larger gap clearance and easier filleting. Light Yellow.
	SilverAlloy Cd-40	40	18	19	23 Cd	-	1130/1202°F 610/650°C						L-Ag40Cd	Ag 340
BAg-1	SilverAlloy Cd-45	45	15	16	24 Cd	-	1125/1145°F 607/618°C	1145°F 618°C	4.96	27.6	P07450	4769	L-Ag45Cd	Ag 345	Lowest melting range in joining ferrous, non-ferrous and dissimilar metals with close joint clearance requirement. Light Yellow.
BAg-1a	SilverAlloy Cd-50	50	15.5	16.5	18 Cd	-	1160/1175°F 627/635°C	1175°F 635°C	4.98	23.9	P07500	4770	L-Ag50Cd	Ag 350	Similar to SilverAlloy Cd-45 properties with narrower melt range. Used on same base metals. Light Yellow.
BAg-3	SilverAlloy Cd-50Ni3	50	15.5	15.5	16 Cd	3	1170/1270°F 632/688°C	1270°F 688°C	5.02	18	P07501	4771		Ag 351	Similar to SilverAlloy Cd-45 properties with narrower melt range. Used on same base metals. Light Yellow.

 
Cadmium-Free SilverAlloys

AWS A5.8	Product name	Nominal Chemical Composition %						Solidus/ Liquidus	Flow	Density TO/Cu.In	Electrical Conductivity (%IACS)	UNS	AMS	DIN 8513	EN 17672	Description
		Ag	Cu	Zn	Other	Ni	Sn
	SilverAlloy	12	48	39.8	0.2 Si	-	-	1490/1535°F 810/835°C						L-Ag12	Ag 212
-	SilverAlloy A-20	20	45	35	-	-	-	1315/1500°F 713/816°C	1500°F 816°C	4.451						Excellent temperature match to heat treatment of carbon steels. Good color match to yellow brass assemblies. Brass Yellow.
	SilverAlloy	20	45.8	34	0.2 Si	-	-	1382/1490°F 750/810°C						L-Ag20
BAg-26	SilverAlloy A-25Ni2	25	38	33	2 Mn	2	-	1305/1475°F 705/800°C		4.48		P07250			Ag 425
	SilverAlloy	25	41	33.9	0.1 Si	-	-	1292/1472°F 700/800°C				P07254		L-Ag25	Ag 225
-	SilverAlloy A-25	25	52.5	22.5	-	-	-	1250/1575°F 677/857°C	1565°F 852°C	4.71						Less silver than SilverAlloy A-30 at the expense of increased melt temperature and range. Moderate ductility. Brass Yellow.
BAg-37	SilverAlloy A-25T	25	40	33	-	-	2	1210/1435°F 654/779°C	1420°F 771°C	4.485		P07125			Ag 125	Least silver of the Ag-Cu-Zn-Sn family. Moderate ductility limits joint design and application. Light Yellow.
	SilverAlloy A-27NiMn	27	38	20	9.5 Mn	5.5	-							L-Ag27
BAg-20	SilverAlloy A-30	30	38	32	-	-	-	1250/1410°F 677/766°C	1410°F 766°C	4.547	24.4	P07301		L-Ag30	Ag 230	Good for HVAC assemblies where higher temperatures can be employed. Good for copper, nickel-silvers, and other non ferrous alloys. Light Yellow.
	SilverAlloy A-30T	30	36	32	-	-	2	1202/1382°F 650/750°C				P07130		L-Ag30Sn	Ag 130
	SilverAlloy A-34T	34	36	27	-	-	3	1292/1364°F 700/740°C				P07130		L-Ag34Sn	Ag 134
BAg-35	SilverAlloy A-35	35	32	33	-	-	-	1265/1390°F 685/754°C	1382°F 750°C	4.67	19.8	P07351			Ag 235	Dissimilar metals brazing in refrigeration tubing. Moderate melt temperature for ferrous and non-ferrous alloys. Light Yellow.
BAg-34	SilverAlloy A-38T	38	32	28	-	-	2	1200/1330°F 649/721°C	1330°F 721°C	4.624	18.0	P07380	4761		Ag 138	Similar melt temperatures to cadmium-bearing SilverAlloy Cd-30 and SilverAlloy Cd-35. Suitable for ferrous and non-ferrous metals. Light Yellow.
BAg-4	SilverAlloy A-40Ni2	40	30	28	-	2	-	1240/1435°F 671/779°C	1435°F 779°C	4.658		P07440			Ag 440	Good corrosion properties with stainless steels. Often used in joining of tungsten carbides.Light Yellow.
-	SilverAlloy A-40L	40	30.5	29.5	-	-	-	1245°F 674°C	1340°F 727°C	4.641			4762			Narrower melt range suitable for furnace brazing of steel, nickel, copper alloys. Good ductility. Yellow.
BAg-28	SilverAlloy A-40T	40	30	28	-	-	2	1200/1310°F 649/710°C	1310°F 710°C	4.76	18.0	P07401		L-Ag40Sn	Ag 140	Intermediate melt temperatures of the tin containing family. Used in joining ferrous and non ferrous. Light Yellow.
BAg-5	SilverAlloy A-45	45	30	25	-	-	-	1225/1370°F 663/743°C	1369°F 743°C	4.728	19.0	P07453		L-Ag45	Ag 245	General purpose alloy for brazing of ferrous and non-ferrous metals. Excellent replacement to Cd containing alloys. Yellow White.
BAg-36	SilverAlloy A-45T	45	27	25	-	-	3	1195/1251°F 646/677°C	1251°F 677°C	4.85	18.0	P07145		L-Ag45Sn	Ag 145	Good for dissimilar metals with moderate flow characteristics. Pale Yellow.
BAg-22	SilverAlloy A-49NiMn	49	16	23	7.5 Mn	4.5	-	1260/1290°F 682/699°C	1290°F 699°C	4.71		P07490		L-Ag49	Ag449	A-49NiMn is often employed when you braze a large carbide tool insert. Also appropriate for joining porous sintered parts and wire mesh screens. Good for brazing aluminum bronze to steel. Yellow White.
BAg-6	SilverAlloy A-50	50	34	16	-	-	-	1270/1425°F 688/774°C	1425°F 774°C	4.876		P07503			Ag 250	Widely used for electrical applications and in joining dissimilar metals. Yellow White.
BAg-24	SilverAlloy A-50Ni2	50	20	28	-	2	-	1220/1305°F 660/707°C	1305°F 707°C	4.726	15.0	P07505	4788		Ag 450	Used with 300 series stainless in Food, Medical and Dental fields. Good Cd free alternative for SilverAlloy Cd-50Ni3 in carbide brazing. White.
	SilverAlloy A-50T	50	22	25	-	-	3	1190°F 643°C	1230°F 665°C	4.8						Similar to SilverAlloy A-56T at expense of increased melt temperature and range. Pale Yellow.
BAg-13	SilverAlloy A-54Ni1	54	40	5	-	1	-	1325/1575°F 718/857°C	1575°F 857°C	5.054	49.8	P07540	4772		Ag 454	Low zinc suitable for furnace brazing. Good for elevated service temperatures to 700°F. Used for carbon assemblies. White.
	SilverAlloy A-55T	55	21	22	-	-	2	1220°F 660°C Liquidus				P07155		L-Ag55Sn	Ag 155
BAg-7	SilverAlloy A-56T	56	22	17	-	-	5	1145/1205°F 618/652°C	1205°F 652°C	4.850	11.9	P07563	4763	L-Ag56Sn	Ag 156	Low zinc suitable for furnace brazing. Good for elevated service temperatures to 700°F. Used for carbon assemblies. White.
	SilverAlloy A-60	60	25	15	-	-	-	1245°F 674°C	1345°F 729°C	4.964						Similar to SilverAlloy A-65. Good for nickel and silver alloys. White.
BAg-21	SilverAlloy A-63T	63	28.5	-	-	2.5	6	1275/1475°F 690/801°C		5.19	12.8	P07630	4774		Ag 463	Low temperature brazing filler metal developed for use on 400 series stainless steels for maximum resistance to interface corrosion. White.
BAg-9	SilverAlloy A-65	65	20	15	-	-	-	1240°F 671°C	1325°F 718°C	5.003		P07650			Ag 265	Third lowest melt alloy of the "Silversmith Alloys". Good color match to silver. White.
BAg-10	SilverAlloy A-70	70	20	10	-	-	-	1275°F 691°C	1360°F 738°C	5.112		P07700			Ag 270	Used on sterling silver, next lower melt temperature below SilverAlloy A-75 in step brazing. White.
	SilverAlloy A-75	75	22	3	-	-	-	1365°F 741°C	1450°F 788°C	5.255						Used on sterling silver. Excellent color match to silver, highest melting of "Silversmith Alloys". White.
	SilverAlloy Z-75	75	-	25	-	-	-	1300°F 704°C	1345°F 729°C	5.06						Joining of steel and stainless steel assemblies that come into contact with ammonia (NH3). White.
	SilverAlloy A-100	99.95	-	-	-	-	-	1763.5°F 961.9°C	1763.5°F 961.9°C	5.527						High purity brazing alloy with applications in aeronautics, vacuum tubes, specialty parts joining.

 
Cadmium/Zinc-Free SilverAlloys

AWS A5.8	Product name	Nominal Chemical Composition %					Solidus/ Liquidus	Flow	Density TO/Cu.In	Electrical Conductivity (%IACS)	UNS	AMS	DIN 8513	EN 17672	Description
		Ag	Cu	Other	Ni	Sn
	SilverAlloy B-7T	7	85	-	-	8	1225°F 663°C	1805°F 985°C	4.683						Good for vacuum and atmosphere brazing. A replacement to copper braze when lower melt temperature is required. Yellow.
BAg-13a	SilverAlloy B-56Ni2	56	42	-	2	-	1420°F 771°C	1640°F 893°C	5.14		P07560	4765		Ag 456	Good for elevated application to 700°F. Low zinc content reduces zinc deposit within furnace during brazing operation. White.
BAg-18	SilverAlloy B-60T	60	30	-	-	10	1115°F 602°C	1325°F 718°C	5.048		P07600	4773		Ag 160	Good for elevated application to 700°F. Low zinc content reduces zinc deposit within furnace during brazing operation. White.
BAg-8b	SilverAlloy B-72Ni	71.5	28	-	0.5	-	1435°F 779°C	1450°F 788°C	5.270						Similar to SilverAlloy B-72 Cd-Free with nickel addition to impart improved corrosion properties with stainless steel. White.
BAg-8a	SilverAlloy B-72L	71.7	28	0.3 Li	-	-	1400°F 760°C Liquidus				P07723				High fluidity. For ferrous and nonferrous alloys. Especially suitable for thin stainless steel.
BAg-8	SilverAlloy B-72	72	28	-	-	-	1435/1435°F 779/779°C eutectic	1435°F 779°C	5.275	87	P07720		L-Ag72	Ag 272	Good for atmosphere and vacuum furnace brazing of ferrous and non-ferrous alloys. Used in critical electronic and aerospace brazements. White.
BAg-23	SilverAlloy B-85Mn	85	-	15 Mn	-	-	1778°F 970°C Liquidus				P07850	4766		Ag 485
BAg-19	SilverAlloy B-93L	92.5	7.2	0.23 Li	-	-	1636°F 891°C Liquidus				P07925	4767

 
SilverAlloys Vacuum Grade

AWS A5.8	Product name	Nominal Chemical Composition %, Grade 1 (Grade 2)										Solidus (Melt)	Liquidus (Flow)	UNS	EN 17672	Description
		Ag	Cu	Sn	Pd	In	Zn	Cd	Pb	P	C
BVAg-6b	SilverAlloy BV-50	50	50	-	-	-	-	-	-	-	-	-	1598°F 870°C	P07507
BVAg-32	SilverAlloy BV-54	54	21	-	25	-	-	-	-	-	-	-	1742°F 950°C	P07587	Pd 587
BVAg-31	SilverAlloy BV-59	58.5	31.5	-	10	-	-	-	-	-	-	-	1562°F 850°C	P07387	Pd 387
BVAg-18	SilverAlloy BV-60	60	30	10	-	-	< 0.001 (< 0.002)	< 0.001 (< 0.002)	< 0.002 (< 0.002)	< 0.002 (< 0.02)	< 0.005 (< 0.005)	1112°F 600°C	1328°F 720°C	P07600	Ag 160	Special alloy with very low level of impurities for vacuum brazing.
BVAg-29	SilverAlloy BV-61	61	24	-	-	14.5	< 0.001 (< 0.002)	< 0.001 (< 0.002)	< 0.002 (< 0.002)	< 0.002 (< 0.02)	< 0.005 (< 0.005)	1166°F 630°C	1301°F 705°C	P07627		Moderate temperature low pressure systems, in particular the electronic vacuum tube.
BVAg-30	SilverAlloy BV-68	68	27	-	5	-	< 0.001 (< 0.002)	< 0.001 (< 0.002)	< 0.002 (< 0.002)	< 0.002 (< 0.02)	< 0.005 (< 0.005)	1461°F 794°C	1497°F 814°C	P07287	Pd 287	For use on ferrous/ non-ferrous alloys; for brazing metallized ceramics to nickel-cobalt-iron assemblies, or joining glass to metal seals.
BVAg-8	SilverAlloy BV-72	72	28	-	-	-	< 0.001 (< 0.002)	< 0.001 (< 0.002)	< 0.002 (< 0.002)	< 0.002 (< 0.02)	< 0.005 (< 0.005)	1436°F 780°C	1436°F 780°C	P07727	Ag 272	For strong, robust, integral joints: aeronautical applications, linear-beam vacuum tubes, power supply surge protectors, automotive parts.

See complete Vacuum Grade brazing alloys list

 
Layered SilverAlloys

AWS A5.8	Product name	Nominal Chemical Composition %					Solidus/ Liquidus	Flow	Density TO/Cu.In	Electrical Conductivity (%IACS)	UNS	DIN 8513	EN 17672	Description
		Ag	Cu	Zn	Other	Ni
	Layermet A-40Ni2	40	30	28	-	2	1220°F 660°C	1435°F 779°C						Similar to Layermet A-50Ni2 with higher brazing temperature, also exhibit good strength and wetting action on carbide.
	Layermet A-40Ni5						1220°F 660°C	1580°C 860°C						Similar to Layermet A-40Ni2 with higher nickel for strength and corrosion resistance.
BAg-22	Layermet A-49NiMn	49	16	23	7.5 Mn	4.5	1260°F 682°C	1290°F 699°C			P07490	L-Ag49	Ag449	Layermet A-49NiMn is often employed when you braze a large carbide tool insert. Also appropriate for joining porous sintered parts and wire mesh screens. Good for brazing aluminum bronze to steel.
	Layermet A-50Ni2	50	20	28	-	2	1220°F 660°C	1305°F 707°C						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	50	15.5	15.5	16 Cd	3	1170°F 632°C	1270°F 688°C						A cadmium bearing Layermet with exceptional strength, flow characteristics, and extremely low brazing temperature.