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Home » Silver Brazing Alloys

We are a leading manufacturer of high quality silver brazing alloys and customize them as per client's specifications and applications. We offer silver brazing alloys that are easy to use, possess high strength impact with short melting ranges, free flowing and versatile. Silver brazing alloys have outstanding flow characteristics and mechanical properties. Our silver brazing alloys range includes : Cadmium Bearing Alloys, Cadmium Free Alloys, For Tungsten Carbide Tipped Tools.

Cadmium Bearing Alloys

We offer a range of cadmium bearing alloys which have an excellent combination of melting range, capillary flow and mechanical properties. These cadmium bearing alloys would be recommended as the most economical alloys where the presence of cadmium is acceptable.

Product Code	Composition %					Melting Range	Corresponding Standard
Product Code	Ag	Cu	Zn	Cd	Others	Celsius	DIN 8513	BS 1845	AWS A5.8.89	IS 2927

- 213	67	11	12	10	-	635-720	L-Ag67Cd	-	-	-
- 213	This cadmium bearing alloy is majorly used for the brazing of Silver goods which are made of Silver Alloys.

- 205	50	15	16	19	-	620-640	L-Ag50Cd	AG 1	B Ag-1a	BA Cu Ag 10
- 205	Due to its lowest melting point in available silver alloys, it provides excellent flow characteristics. It is a general purpose alloy which has highest joint strength & also provides resistance to corrosion in chlorine, sulphur & steam environments.

- 209	45	15	16	24	-	607-619	L-Ag45Cd	-	B Ag-1	BA Cu Ag 15
- 209	Its narrow melting range makes it suitable for rapid or slow methods of heating & also helps in flowing freely in narrow clearance joints.

- 207	43	16	20	21	-	615-620	-	-	-	BA Cu Ag 16A
- 207	It may be used in brazing operations, requiring a low temperature, quick & complete penetration & neat joints of high strength that needs little or no finishing. It is used where joints are closely fitted & where it is desired to employ a single alloy effective in wide range of applications. It may be used in brazing steel, copper, brass, gunmetal tin bronzes, aluminium, manganese bronzes, copper nickel alloys and nickel silver.

- 206	42	17	16	25	-	605-620	-	AG 2	-	-
- 204	40	19	21	20	-	595-630	L-Ag40Cd	AG 10

- 211	38	20	22	20	-	610-650	-	AG 3	-	BA Cu Ag 19
- 211	Similar to ALFA-208 but little costlier. Provides more strength to the joint.

- 208	35	26	21	18	-	607-702	L-Ag34Cd	-	B Ag-2	BA Cu Ag 20
- 208	These brazing alloys are free flowing & are suitable for general purpose work requiring higher brazing temperature. Their melting ranges are helpful where joint clearances are not uniform. Unless proper care is taken these filler metals may tend to liquate.

- 203	30	27	23	20	-	607-710	L-Ag30Cd	AG 12	B Ag-2a	BA Cu Ag 21
- 203	Similar to ALFA-208 but is more economical. Provides lass strength to the joint.

- 207A	25	31	26	18	-	605-710	-	-	B Ag-33	-
- 207A	Their wide melting range limit their application. Due to this they are more prone to liquation. It is not recommended for applications with slow heating rates. However, it has good fillet forming properties & has ability to bridge wider gaps..

- 207B	25	35	26.5	13.5	-	605-745	-	-	BAg-27	-
- 207B	Similar to ALFA-207A. It is used for brazing joints with very wide gaps.

- 202	20	38	28	14	-	620-750	L-Ag20Cd	-	-	-
- 202	Similar to ALFA-207A but is more economical.

- 208A

620-760

- 203A	12	50	31	7	-	620-810	L-Ag12Cd	-	-	-
- 203A	It is ideal for bridging wider gas where work pieces are insensitive to heat. It is preferred for applications having short heating cycles.

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Cadmium Free Alloys

We have developed a range of cadmium free alloys, keeping in view the requirements of our end users, which mainly consist of food and beverage industries. These alloys are suitable for use on most ferrous and non-ferrous materials. We offer numerous material compositions for general purpose and specialty applications, which are available in strip, wire, powder, paste, preforms as well as clad tri-metal products and flux-cored wire.

Product Code	Composition %					Melting Range	Corresponding Standard
	Ag	Cu	Zn		Others	Celsius	DIN 8513	BS 1845	AWS A5.8.89	IS 2927

- 311 SnA	92	8	-		0.15Sn	780-890	-	-	B Ag-19	BA Cu Ag 0
- 311 SnA	Brazing Filler metal is suitable for pure dry atmosphere brazing & is of particular advantage when precipitation hardening & other stainless steels in 760C to 370C range. This alloy is usually used where the precipitation-hardening heat treatment is combined with the brazing operation.

- 311A	83	15	2		-	780-830	L-Ag83	-	-	-
- 311A	Brazing filler metal is used for brazing of precisions silver linings of chemical equipments or precision silver equipment.

- 308A	80	16	4		-	738-810	-	-	-	BA Cu Ag 1
- 308A	Brazing alloy is used in assembling of vacuum tubes where volatile elements are not permitted to be used. These alloys are free flowing yet they do not wet well on ferrous metals.

- 312	75	22	3		-	741-788	-	-	-	BA Cu Ag 2
- 312	It is generally used for joining sterling silver or brazing of objects made of silver alloys which are enameled after the brazing process.

- 309B	72	28	-		-	780-780	-	-	B Ag-8	BA Cu Ag 3
- 309B	Similar to ALFA-308A, it is especially for thin sections of stainless steel.

- 307	70	20	10		-	690-740	-	-	B Ag-10	-
- 307	It is especially for joining sterling silver.

- 313	67	23	10		-	700-730	L-Ag67	-	-	-
- 313	It is used for brazing of silver goods which are made from silver alloys.

- 311B	65	20	15		-	690-720	L-Ag64	-	B Ag-9	-
- 311B	Similar to ALFA-307 but is more economical & provides less strength to the joint.

- 307A	61	29	10		-	690-735	-	-	-	BA Cu Ag 6
- 307A	Brazing alloys is particularly suitable for joining electrical components requiring high electrical conductivity.

- 306 SnB	60	23	14		3 Sn	620-685	L-Ag60Sn	-	-	-
- 306 SnB	Similar to ALFA-313.

- 306	60	26	14		-	695-730	L-Ag60	AG 13	-	-
- 306	It is used for brazing monel, silver & nickel alloys.

- 306 Sn	60	30	-		10 Sn	600-720	-	-	B Ag-18	BA Cu Ag 7
- 306 Sn	It is particularly suitable for brazing small parts & is corrosion resisting & ductile. The tin contents help in wetting the surface of stainless steel, carbon steel & nickel base alloys. It is specially used for vacuum applications.

- 311 Sn	56	22	17		5 Sn	620-750	L-Ag55Sn	-	B Ag-7	BA Cu Ag 8
- 311 Sn	Brazing alloy is a low melting filler metal & does not contain cadmium. It is ideal for furnace brazing. It is used by the dairy & food industry where cadmium free joints are required. This brazing alloy is less prone to cause stress cracking on stainless steel & some nickel alloys. After brazing gives a closer match with whitish metals such as stainless steel.

- 310 Sn	55	21	22		2 Sn	630-660	L-Ag55Sn	-	-	-
- 310 Sn	It may be used on any nickel & nickel alloys, copper & copper alloys and steels.

- 310 SnA	55	43	-		2 Sn	771-895	-	-	-	BA Cu Ag 8A
- 310 SnA	It is advantageous where zinc volatilization is objectionable in furnace operations.

- 305	50	34	16		-	688-774	-	-	B Ag-6	BA Cu Ag 9
- 305	It may be used where the use of brazing alloy contains cadmium as for food handling or process equipment is objectionable. It is used in electrical industry. Due to broad melting range it is a better filler metal for filling wide joint clearances or forming large fillets.

- 305A	50	50	-		-	750-870	-	-	-	-
- 305A	Similar to ALFA-309A. It is used where better gap filling is required.

- 309 Sn	45	27	25		3 Sn	640-680	L-Ag45Sn	-	B Ag-36	-
- 309 Sn	It is a low temperature cadmium free alloy with free flowing characteristics.

- 309	45	30	25		-	670-740	L-Ag44	AG 15	B Ag-5	BA Cu Ag 14
- 309	It is a general purpose brazing alloy for use at higher brazing temperatures. It is an excellent filler metal for brazing brass parts.

- 307	43	37	20		-	700-775	-	-	-	BA Cu Ag 16
- 307	Similar to ALFA-309. Also used for brazing of ferrous & non ferrous metals.

- 304	40	30	30		-	660-720	-	-	-	-
- 304	It has a narrow melting range & used in brazing of copper based alloys, monel, nickel & mild steel.

- 304 Sn	40	30	28		2 Sn	640-700	L-Ag40 Sn	AG 20	B Ag-28	-
- 304 Sn	It is a free flowing alloy for ferrous, non ferrous & dissimilar joints.

- 311 SnB	38	31	29		2 Sn	660-720	-	-	B Ag-34	-
- 311 SnB	It is free flowing cadmium free filler metal used with ferrous & non ferrous base metals.

- 308	35	32	33		-	680-730	-	-	B Ag-35	-
- 308	It is a filler metal with intermediate temperature for use with ferrous & non ferrous metals.

- 307 Sn	34	36	27		3 Sn	630-730	L-Ag34 Sn	-	-	-
- 307 Sn	It is used for assembly of copper tubes in the refrigeration industry & on equipments & containers in the food industry. Tin improves its fluidity & it has good wetting properties.

- 303 Sn	30	36	32		2 Sn	650-750	L-Ag30 Sn	AG 21	-	-
- 303 Sn	It is a free flowing alloy for ferrous, non ferrous & dissimilar metals with good fluidity.

- 303	30	38	32		-	690-760	L-Ag30	-	B Ag-20	-
- 303	It has moderate ductility which limits the joint design & application. It has good wetting characteristics & is free flowing.

- 307 SnA	25	40	33		2 Sn	680-760	L-Ag25 Sn	-	-	-
- 307 SnA	It is economical filler metal & is useful on ferrous & non ferrous joints which do not require impact strength or high ductility.

- 307A	25	41	34		-	690-800	L-Ag25	AG 17	-	-
- 307A	It is an economical filler metal used for ferrous metals, stainless steel, copper, brass. It is used in mechanical, electrical, refrigeration industries & musical instruments.

- 302	20	46	34		-	690-810	L-Ag20	-	-	-
- 302	It is used in brazing operations where brazing & heat treating of steels is simultaneously done.

- 303A	12	48	34		-	800-830	-	-	-	-
- 303A	It is used for torch brazing on carbon & stainless steel, copper, nickel & its alloys. It is used in boiler works for drawn components.

- 301	10	52	38		-	743-766	-	-	-	BA Cu Ag 23
- 301	It is suitable for brazing ferrous & non ferrous metals not damaged by temperatures required. Also useful for copper based alloys.

- 305	5	55	40		-	820-890	L-Ag5	-	-	-
- 305	It is used for brazing nichrome resistance elements.

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For Tungsten Carbide Tipped Tools

We manufacture excellent quality Tungsten Carbide that has highest melting point, lowest vapor pressure and very high tensile strength. We have a product range, which caters to the needs of various industry segments like high precision tools, sports goods and jewelry etc.

Product Code	Composition %					Melting Range	Corresponding Standard
Product Code	Ag	Cu	Zn	Cd	Others	Celsius	DIN 8513	BS 1845	AWS A5.8.89	IS 2927

- 409	63	28.5	-	-	2.5 Ni 6 Sn	691-802	-	-	B Ag-21	-
- 409	Brazing Filler metal is used in brazing AISI/300 & 400 series stainless steels, as well as the precipitation-hardening nickel & steel alloys. It is particularly suited to protective atmosphere furnace brazing because of the absence of zinc & cadmium. The nickel content makes it immune to crevice corrosion, particularly on 400 series stainless steel by imparting a nickel rich layer along the fillet edge. It is used for brazing stainless steel vanes of gas turbine aircraft engines.

- 410	55	40	4	-	1 Ni	718-857	-	-	B Ag-13	BA Cu Ag 8B
- 410	Brazing alloy is used for service temperature up to 371C. its low zinc content makes it suitable for furnace brazing.

- 405A	50	20	27	-	2 Ni	660-750	-	-	B Ag-24	-
- 405A	Brazing filler metal is low melting, free flowing, cadmium free & suitable for use in joining low carbon 300 series stainless steels (particularly food handling equipment & hospital utensils) & small tungsten carbide inserts for cutting tools.

- 405	50	15.5	15.5	16	3 Ni	632-688	-	-	B Ag-3	BA Cu Ag 12
- 405	Brazing alloy is particularly suitable for brazing carbide tool tips to tool shanks as it wets the carbide tool tip very satisfactorily. It has a wide wetting range, therefore, the solid & liquid portions do not tend to separate excessively. It is good filler metal for bridging gap. It has good corrosion resistant properties & is particularly suitable for brazing stainless steels also.

- 411	56	42	-	-	2 Ni	771-893	-	-	B Ag 13a	-
- 411	Brazing filler metal is similar to ALFA-410, except that it contains no zinc, which is advantageous where volatilization is objectionable in furnace brazing.

- 404	40	30	28	-	2 Ni	671-775	-	-	B Ag-4	BA Cu Ag 18
- 404	Brazing alloy is used for brazing carbide tip brazing. Similar to ALFA-405, but higher brazing temperature is required. It flows freely & does not contain cadmium.

- 404A	40	30	25	-	5 Ni	660-860	-	-	-	-
- 404A	Brazing alloy for tungsten carbide & stainless steels.

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Silver Brazing Alloys | Copper Based Brazing Alloys | Copper Phosphorus Brazing Alloys | Aluminium Filler Wires | Fluxes