Solder and Braze

Soldering Alloy Properties
Composition - %							Characteristics			Melting Point (°C)		Melting Point (°F)
Sn	Pb	In	Sb	Ag	Cu	Other/Trade name	Wetting Char	Therm Fatigue Resist	Joint Strength PSI	Low	High	Low	High
16	32					Bi52				100		212
34	20					Bi46				100	105	212	221
48		52					Excel	Excel	1630	118		244
40		60								118	122	244	252
46	46					Bi8				120	167	248	333
54	26	20								130	154	266	309
37.5	37.5	26								134	181	273	358
42						Bi58	Fair	Poor	6800	138		280
30						Cd70				140	160	284	320
	15	80		5			Good	Fair	2400	142	149	288	300
		97		3						143		289
43	43					Bi14				144	163	291	325
50	32					Cd18				145		293
		100					Good	Good	900	156		313
	30	70					Good	Good	2200	165	175	329	347
	40	60								173	181	343	358
	50	50								178	210	352	410
62	36			2			Excel	Poor	5600	179		354
63	37						Excel	Poor	5400	183		361
60	40									183	188	361	370
60	38				2					183	190	361	374
70	30									183	193	361	379
80	20									183	199	361	390
50	50									183	212	361	414
90	10									183	213	361	415
50	49				1					183	215	361	419
40	60									183	247	361	477
35	65									183	250	361	482
30	70									183	257	361	495
25	75									183	268	361	514
20	80									183	280	361	536
20	79		1							184	270	363	518
35	63		2							185	243	365	469
30	68		2							185	243	365	469
85	10		5							188	230	370	446
55	45									193		379
	60	40								195	225	383	437
45.0	55									204		400
	50	50								209		402
65	32					Cd1				216	219	421	426
96.2			0.5	2.5	0.8	Castin	Excel	Excel	4312	217		423
96.5				3.0	0.5	SAC305 / LF965	Excel	Excel	4312	217	218	423	424
95.8				3.5	0.7	LF958	Excel	Excel	4312	217	218	423	424
95.5				3.8	0.7	SAC387 / LF955	Excel	Excel	4312	217	218	423	424
95.5				4.0	0.5	SAC405 / LF217	Excel	Excel	4312	217	218	423	424
96.5				3.5		LF221	Excel	Excel	5300	221		430
96				4.0		LF221	Excel	Excel	5300	221		430
95				5.0						221	240	430	464
???						SN100C	Excel	Excel	5300	227		441
99.3					0.7	K100LD (CS) /AIM	Excel	Excel	5300	227		441
100										232		450
95			5							232	240	450	464
	81	19					Good	Good	5400	244	275	471	527
5	85		10							245	255	473	491
	70	30								245	260	473	500
	75	25								250	264	482	507
18	80			2						252	260	489	500
2	96		2							252	295	489	563
10	88			2						268	290	514	554
	81	19								270	280	518	554
15	82.5			2.5						275	280	527	536
10	90									275	302	527	576
20						Au80				281		538
5	93.5			1.5						296	301	565	574
5	92.5			2.5						299	304	570	579
3	95			2						299	305	570	581
	92.5	5		2.5			Good	Fair	5700	300		572
	92.5	5				Au2.5				300	310	572	590
	97.5				2.5					304		579
5	93.5			1.5						305	306	581	583
	94.5				5.5					305	364	581	687
5	95									308	312	586	594
1	97.5			1.5			Good	Fair	5700	309		588
3	97									314	320	597	608
						Au87.5/Ge12.5				356		673
						Au96.8/Si3.2				370		698
						Au98/Si2				370	800	698	1472
		18				Au82				451	485	844	905

1. Data from AIM solder Eagle Alloys and other sources.
2. Single melting points indicate a Eutectic alloy, multiple temperatures indicate alloys which are mixtures of solid and liquid forms within that range: [Solid = Low] < [Solid + Liquid] > [High = Liquid].
3. Low melting point is called "Solidus", High melting point is called Liquidus.

Brazing Alloy Properties
Compostion - %										Product Name	Melting Point (°C)		Melting Point (°F)
Cu	Ag	Al	Fe	Zn	Si	Mg	Mn	P	Other	Product Name	Low	High	Low	High
0.13		75	0.4	0.1	4.5-6	0.05	0.05		Ti-20	4043 Aluminum / JWH	574	632	1065	1170
0.3		86.15	0.8	0.2	11-13	0.1	0.15		Ti-0.15	4047 Aluminum / JWH	574	632	1065	1170
75	18							7		Staysilv-18 / PL / JWH	643	720	1190	1220
80	15							5		Staysilv-15 / PL / JWH	643	802	1190	1475
89	5							6		Staysilv-5 / PL / JWH	643	819	1190	1506

*Manufacturers of Soldering and Brazing materials*
AIM Solder	Alpha Metals	B & SA	Eagle Alloys
Ensil Group	Fusion Inc	JW Harris	Kester
Micro Joining	Paras	Powder Alloy	SRA
Wall Colmonoy