Foil and Wire for Metal Brazing

• Application: Transportation Tools, Spaceflight
• Certification: RoHS, ISO9001, JIS, EN
• Technique: Hot Rolled
• Grade: --
• Temper: --
• Surface Treatment: Mill Finish
• Alloy: Alloy
• Transport Package: Export Standard Wooden Pallet
• Specification: According to Customer Requirement
• Trademark: Chalco Aluminum
• Origin: Henan China
• HS Code: 7606125900
• Production Capacity: 15000mt/Month

Product Description

Foil and wire for metal brazing

Our company has developed special brazing materials for aluminum and magnesium alloys of different specifications by vacuum casting, extrusion, rolling, and drawing processes, breaking the foreign monopoly. The main product specifications are foil (0.01~0.08mm) and welding wire (1~4mm). In addition to conventional aluminum and magnesium alloy brazing materials, non-standard brazing foil and welding wire can be customized according to customer needs.

Main aluminum-based solder composition and melting temperature

Alloy	Main chemical composition						Solid line /ºC	Liquidus  /ºC
	Si	Cu	Mg	Zn	Ge	Al
BAl90Si	9~11	-	-	-	-	Margin	577	591
BAl86SiCu	9~11	3.3~4.7	-	-	-	Margin	521	585
BAl67SiCu	4~7	25~30	-	-	-	Margin	525	535
BAl87SiZn	10	-	-	3.0	-	Margin	576	588
BAl87SiMg	11~12	-	1.0	-	-	Margin	559	579
BAl76SiCuZn	9~11	3.3~4.7	-	9~11	-	Margin	516	560
AlSiCuGe10	7~9	18~23	-	-	9~11	Margin	415	503
AlSiCuGe15	7~8	18~23	-	-	14~16	Margin	417	495
AlSiCuGe20	6~8	18~23	-	-	18~22	Margin	417	487

Composition and physical properties of several brazable magnesium alloys

ASTM Alloy	Composition (mass fraction, %)						Density/(g.cm-3)	Solid line /ºC	Liquidus/ºC	Brazing temperature range/ºC
	Al	Zn	Mn	Zr	Re	Mg
AZ10A	1.2	0.4	0.20	-	-	Margin	1.75	632	643	582~616
AZ31B	3.0	1.0	0.20	-	-	Margin	1.77	566	627	582~593
AZ63A	6.0	3.0	0.25	-	-	Margin	1.82	455	610	430~450
AZ91C	8.7	0.7	0.20	-	-	Margin	1.81	468	598	430~460
K1A	-	-	-	0.70	-	Margin	1.74	649	650	582~616
M1A	-	-	1.20	-	-	Margin	1.76	648	650	582~616
ZE10A	-	1.2	-	-	0.17	Margin	1.76	593	646	582~593
ZK21A	-	2.3	-	0.60	-	Margin	1.79	626	642	582~616

Note: 1. The content of Mn is the minimum value.

          2. ASTM-American Society for Testing and Materials

Typical mechanical properties of several brazable magnesium alloys

ASTM Alloy	Heat treatment	Yield Strength Re/Mpa	Tensile strength Rm/Mpa	Elongation A(%)
AZ10A	F	145	241	10
AZ31B,C	F	193	262	14
AZ31B	H24	121	290	15
AZ31B	O	152	255	21
AZ63A	C	145	225	66
AZ91C	C	145	225	6
K1A	F	55	159	14
M1A	F	138	234	9
M1A	H24	186	255	9
M1A	O	110	221	15
ZE10A	H24	179	255	12
ZE10A	O	138	228	23
ZK21A	F	228	290	10

Note: F-state after manufacture; H24-incomplete annealing after work hardening to obtain performance equivalent to 1/2 hard state; O-tempered state; C-casting


Composition and physical properties of commercial magnesium alloy brazing filler metals

Alloy	Composition (mass fraction, %							Density/(g.cm-3)	Solid line /ºC	Liquidus/ºC	Brazing temperature range/ºC
	Al	Zn	Mn	Cu	Be	Ni	Other
BMg-1	8.3-9.7	1.7-2.3	0.15-0.5	0.05	0.0002-0.0008	0.005	0.3	1.83	443	599	599-616
BMg-2a	11-13	4.5-5.5	-	-	0.0008	-	0.3	2.10	410	565	570-595
MC3	8.3-9.7	1.6-2.4	0-0.1	0-0.25	0.0005	0-0.01	<0.3	1.83	443	599	605-615

Note: AWS-American Welding Society

Composition and physical properties of low-temperature welding magnesium alloy brazing filler metal

Alloy	Composition (mass fraction, %)				Density/(g.cm-3)	Solid line /ºC	Liquidus/ºC	Brazing temperature range/ºC
	Al	Zn	Mn	Other
GA432	2	55	-	-	4.7	330	360	495-505
P430Mg	0.7-1.0	13-15	0.1-0.5	0.3	2.7	380	430	550-560
P380Mg	2.0-2.5	23-25	0.1-0.5	0.3	3.0	340	380	480-500
P435Mg	25-27	1-1.5	0.1-0.3	-	2.1	435	520	520-560
P398Mg	21-22	0.2-0.5	0.1-0.3	Cd25-26	3.7	398	415	430-500