C14500 Description
PRODUCT DESCRIPTION: Tellurium Copper
TEMPERS: H02 Half Hard, H04 Hard
SOLIDS: 3/8″ to 2 3/4″ O.D.*
STANDARD LENGTHS: 144″
*Consult mill for other sizes
Typical Uses
ARCHITECTURE: fire protection
ELECTRICAL: electrical connectors, motor parts, soldering copper, switch parts, transistor bases
INDUSTRIAL: forgings, furnace brazed articles, screw machine products, soldering tips, welding torch tips
PLUMBING: fixtures, plumbing fittings, sprinkler heads
Extruded and Drawn
C14500, or tellurium copper, has similar mechanical properties to unalloyed, pure copper but with a higher machinability. The cutting properties of C14500 are enhanced significantly by creating a copper alloy with the addition of tellurium. Tellurium copper is also known for its high electrical conductivity characteristic.
Similar or Equivalent Specification
| CDA | ASTM | SAE | AMS | Federal | Military | Other |
|---|---|---|---|---|---|---|
| C14500 | B124 B124M B301 B301M | J461 J463 | Tellurium-Bearing (PTE) |
Chemical Composition
| Cu%1,2 | P% | Te% | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
1Includes silver 2Includes tellurium and phosphorus Note: Includes oxygen-free or deoxidized grades with deoxidizers (such as phosphorus, boron, lithium, or other) in an amount agreed upon. Unless otherwise noted, single values represent maximums. | |||||||||||
| 99.90 min | 0.004- 0.012 | 0.40- 0.70 | |||||||||
Machinability
| Copper Alloy UNS No. | Machinability Rating | Density (lb/in3 at 68 °F) |
|---|---|---|
| C14500 | 85 | 0.323 |
Mechanical Properties
C14500
H02 Half Hard
SIZE RANGE: 1/16″ DIAMETER ROD TO 1/4″ INCLUSIVE
| Tensile Strength, min | Yield Strength, at 0.5% Extension Under Load, min | Elongation, 4x Diameter or Specimen Thickness, min | Brinell Hardness (500 kg load) | Remarks | ||
|---|---|---|---|---|---|---|
| Ksi | MPa | Ksi | MPa | % | typical BHN | |
| 38 | 260 | 30 | 205 | 8 | 76 | |
SIZE RANGE: OVER 1/4″ DIAMETER ROD TO 2 5/8″ INCLUSIVE
| Tensile Strength, min | Yield Strength, at 0.5% Extension Under Load, min | Elongation, 4x Diameter or Specimen Thickness, min | Brinell Hardness (500 kg load) | Remarks | ||
|---|---|---|---|---|---|---|
| Ksi | MPa | Ksi | MPa | % | typical BHN | |
| 38 | 260 | 30 | 205 | 12 | 76 | |
C14500
H04 Hard
SIZE RANGE: 1/16″ DIAMETER ROD (ROUND ONLY) TO 1/4″ INCLUSIVE
| Tensile Strength, min | Yield Strength, at 0.5% Extension Under Load, min | Elongation, 4x Diameter or Specimen Thickness, min | Brinell Hardness (500 kg load) | Remarks | ||
|---|---|---|---|---|---|---|
| Ksi | MPa | Ksi | MPa | % | typical BHN | |
| 48 | 330 | 40 | 275 | 4 | 81 | |
SIZE RANGE: OVER 1/4″ DIAMETER ROD (ROUND ONLY) TO 1 1/4″ INCLUSIVE
| Tensile Strength, min | Yield Strength, at 0.5% Extension Under Load, min | Elongation, 4x Diameter or Specimen Thickness, min | Brinell Hardness (500 kg load) | Remarks | ||
|---|---|---|---|---|---|---|
| Ksi | MPa | Ksi | MPa | % | typical BHN | |
| 44 | 305 | 38 | 260 | 8 | 81 | |
SIZE RANGE: OVER 1 1/4″ DIAMETER ROD (ROUND ONLY) TO 3″ INCLUSIVE
| Tensile Strength, min | Yield Strength, at 0.5% Extension Under Load, min | Elongation, 4x Diameter or Specimen Thickness, min | Brinell Hardness (500 kg load) | Remarks | ||
|---|---|---|---|---|---|---|
| Ksi | MPa | Ksi | MPa | % | typical BHN | |
| 40 | 275 | 35 | 240 | 8 | 81 | |
Physical Properties
Physical Properties provided by CDA | |||||||||||
| US Customary | Metric | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Melting Point – Liquidus | 1976 °F | 1080 °C | |||||||||
| Melting Point – Solidus | 1924 °F | 1051 °C | |||||||||
| Density | 0.323 lb/in3 at 68 °F | 8.94 gm/cm3 at 20 °C | |||||||||
| Specific Gravity | 8.94 | 8.94 | |||||||||
| Electrical Conductivity | 93% IACS at 68 °F | 0.539 MegaSiemens/cm at 20 °C | |||||||||
| Thermal Conductivity | 205 Btu/sq ft/ft hr/°F at 68 °F | 355 W/m at 20 °C | |||||||||
| Coefficient of Thermal Expansion 68-212 | 9.5 · 10-6 per °F (68-212 °F) | 16.5 · 10-6 per °C (20-100 °C) | |||||||||
| Coefficient of Thermal Expansion 68-392 | 9.7 · 10-6 per °F (68-392 °F) | 16.8 · 10-6 per °C (20-200 °C) | |||||||||
| Coefficient of Thermal Expansion 68-572 | 9.9 · 10-6 per °F (68-572 °F) | 17.1 · 10-6 per °C (20-300 °C) | |||||||||
| Specific Heat Capacity | 0.092 Btu/lb/°F at 68 °F | 385.5 J/kg at 20 °C | |||||||||
| Modulus of Elasticity in Tension | 17000 ksi | 117212 MPa | |||||||||
| Modulus of Rigidity | 6400 ksi | 44127 MPa | |||||||||
Fabrication Properties
Fabrication Properties provided by CDA | |||||||||||
| Technique | Suitability | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Soldering | Excellent | ||||||||||
| Brazing | Good | ||||||||||
| Oxyacetylene Welding | Fair | ||||||||||
| Gas Shielded Arc Welding | Fair | ||||||||||
| Coated Metal Arc Welding | Not Recommended | ||||||||||
| Spot Weld | Not Recommended | ||||||||||
| Seam Weld | Not Recommended | ||||||||||
| Butt Weld | Fair | ||||||||||
| Capacity for Being Cold Worked | Good | ||||||||||
| Capacity for Being Hot Formed | Good | ||||||||||
| Forgeability Rating | 65 | ||||||||||
| Machinability Rating | 85 | ||||||||||
Thermal Properties
Thermal Properties provided by CDA *Temperature is measured in Fahrenheit. | |||||||||||
| Treatment | Minimum* | Maximum* | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Annealing | 800 | 1200 | |||||||||
| Hot Treatment | 1400 | 1600 | |||||||||
Common Fabrication Processes
Cold – Drawing, machining, moderate cold heading; Hot – Extrusion, forging (closed die only)
Common Fabrication Processes provided by CDA
