Pb
metal· Pb
Lead (Pb) is a soft, dense, bluish-gray metal with high density and low melting point, belonging to Group 14 of the periodic table. It is widely used in applications requiring radiation shielding, chemical corrosion resistance, and vibration damping, particularly in nuclear facilities, battery manufacturing, and construction. Engineers select lead for its exceptional density and ease of casting, though environmental and health regulations in many regions have driven substitution efforts in traditional applications like automotive batteries and plumbing solder.
radiation shieldinglead-acid batterieschemical corrosion resistancevibration dampingroofing and flashingammunition and ballast weights
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Property OverviewNormalized to typical max values
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 37.33 | GPa | — | ||
| ↳ | 42.57 | GPa | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Compressive Strength(σc) | 175.0 | kPa | — | ||
Elastic Anisotropy(AU) | 1.040 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | — | ||
Elongation at Break(εf) | 117.7 | - | — | ||
Flexural Strength (MOR)(σf) | 24.85 | MPa | — | ||
Hardness (Vickers)(HV) | 121.1 | HV | — | ||
Poisson's Ratio(ν)2 entries | 0.3491 | - | — | ||
| ↳ | 0.3900 | - | — | ||
Shear Modulus(G)2 entries | 12.53 | GPa | — | ||
| ↳ | 11.62 | GPa | — | ||
Ultimate Tensile Strength(σUTS) | 24.89 | MPa | — | ||
Young's Modulus(E) | 608.7 | MPa | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | 228.9 | K | — | ||
Melting Point / Solidus(Tm) | 391.3 | K | — | ||
Maximum Service Temperature(Tmax) | 621.1 | K | — | ||
Thermal Conductivity(k) | 0.8250 | W/(m·K) | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 10.92 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 1.903 | eV | — | ||
| ↳ | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -2.560 | µV/K | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | 0.000 | eV/atom | — | ||
Refractive Index(n) | 1.510 | - | — |
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.