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LEAD FREE SOLDER

In response to global environmental demand for lead-free products including lead free solder , P. Kay offers standard and IPC recomended lead-free alloys. Alternative lead-free alloys are also available.

Every lot of Puretronix is shipped with either a chemical analysis or certification of compliance. The lot number and alloy are stamped into each bar. Puretronix is available in one pound and two pound bars, eight pound flat bars and plating anodes. Custom sizes are available upon request.

PURETRONIX SOLDER PURITY LEVELS

Alloy Compostion	Celsius		Fahrenheit
	SOL	LIQ	SOL	LIQ
In52Sn48	118	e	244.4	e
Sn42Bi58	138	e	280.4	e
Sn95.5Ag3.8Cu0.7	217	e	422.6	e
Sn95.8Ag3.5Cu0.7	217	e	422.6	e
Sn95Ag4Cd1	216	219	420.8	426.2
Sn95Ag5	221	245	429.8	473.0
Sn95Sb5	235	240	455.0	464.0
Sn96Ag2.5Cu0.5Bi1	214	218	417.2	424.4
Sn96.3Ag2.5Cu0.7Sb0.5	210	216	410.0	420.8
Sn96.3Ag3.7	221	e	429.8	e
Sn96.4Ag3.2Cu0.4	217	e	422.6	e
Sn96.5Ag3.5	221	e	429.8	e
Sn97Cu3	227	300	440.6	572.0
Sn99.3Cu0.7	227	e	440.6	e
Sn99.9	232	mp	449.6	mp

The Solidus (SOL) and Liquidus LIQ) temperature values are provided for information only and are not intended to be a requirement in the formulation of the alloys. In the "LIQ" columns, an "e" indicated eutectic alloys and an "mp" indicated the tabulated solidus temperature represents the melting point for the elements. Although efforts have been made to document the correct solidus and liquidus temperatures for each alloy, users of this standard are advised to verify these temperature values before use.
Sn95Sb5 has a nominal antimony (Sb) mass percentage of 5.0% and an allowable antimony percentable range of 4.0% to 6.0%.
Sn99.9 is included in this standard for use in replenishing tin in wave soldering baths and is NOT suitable for use as a stand-alone solder because of potential performance and reliability problems.

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