Sn7Pb — Properties & Data | MatWorld

Sn7Pb

ceramic

· JVASP-122600· Sn7Pb

Sn7Pb is a tin-lead alloy composition (7% lead, 93% tin nominal) traditionally used as a soft solder for electronic and mechanical applications. This material has been widely employed in electronics assembly, plumbing, and general-purpose joining for decades, though lead-containing solders are increasingly restricted in consumer electronics due to RoHS regulations in many markets. Engineers select tin-lead solders when eutectic or near-eutectic performance, lower processing temperatures, or compatibility with legacy systems justifies use; however, the shift toward lead-free alternatives (SAC alloys) has significantly reduced its application scope in new product development.

electronic solder jointsplumbing and HVAC connectionslegacy equipment repairthermal interface bondingmilitary/aerospace applications (exempted from RoHS)

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	5.778	kg/m³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.03680	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.03682	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

Sn7Pb

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental