MAT GRADES — 105 VERIFIED MATERIALS • 100% ITEM-LEVEL PROVENANCE
2 Alloys in free machining copperFact-Level Source Provenance
UNS • Canonical GradeSubfamilyStandard IdentifiersConductivity (% IACS)Yield & ContextStatusActions
C14500 Tellurium CopperTellurium CopperFree-Machining Copper
UNS: C14500COMMERCIAL: Tellurium CopperCDA: Alloy 145
93 % IACSTYPICAL · 20 °C · CDA Physical Properties: Volume conductivity 93.0 % IACS at 68°F (20°C)275.8 MPaTYPICAL · 1/2 Hard (H02) · Rod · 1 · 20 °C · Section Size: 1; Cold Work: 20%; Section Size: 1 in; Yield strength at 0.5% extension under loadVERIFIED
C14700 Sulfur CopperSulfur CopperFree-Machining Copper
UNS: C14700COMMERCIAL: Sulfur CopperCDA: Alloy 147
95 % IACSTYPICAL · 20 °C · CDA Physical Properties: Volume conductivity 95.0 % IACS at 68°F (20°C)268.9 MPaTYPICAL · 1/2 Hard (H02) · Rod · 2 · 20 °C · Section Size: 2; Section Size: 2 in; Yield strength at 0.5% extension under loadVERIFIED