Ag2Sn

metal

· JVASP-156256· Ag2Sn

Ag₂Sn is an intermetallic compound composed of silver and tin, belonging to the precious-metal intermetallic family. It is primarily encountered in solder joint microstructures and lead-free solder systems, where it forms as a secondary phase during solidification and thermal aging of Ag-Sn-Cu alloys. This compound is notable for its role in controlling mechanical properties and long-term reliability of electronic interconnects; engineers select materials containing controlled Ag₂Sn precipitation to balance strength, creep resistance, and fatigue performance in high-reliability applications, particularly where thermal cycling or vibration exposure is a concern.

lead-free solder jointselectronic interconnectsthermal cycling reliabilitymicroelectronics assemblyautomotive electronicsaerospace solder reliability

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	8.879	kg/m³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.08250	eV/atom	—
Formation Energy(ΔHf)	0.07971	eV/atom	—

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

Regulatory Screening

Environmental

Export Control

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.

Ag2Sn

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control