Copper Alloy Cu-PHCE-R220
Temper · default condition
EN CR022A
R220 = r220 / O60
Most stocked condition — maximum conductivity and ductility for bending, upsetting, brazing and welded conductor work.
Values for the R220 condition
Other Cu-PHCE tempers and conditions
Cu-PHCE is listed in 6 conditions; see the grade overview at Cu-PHCE.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Thermomechanically controlled processed | Feedstock condition of CR022A cast refined copper before extrusion/drawing; use when buying billet or cake for onward hot working. | 55 | 210 | 38 | 42 HB | 100 % IACS |
R220DefaultThis page R220 / O60 | Most stocked condition — maximum conductivity and ductility for bending, upsetting, brazing and welded conductor work. | 70 | 225 | 45 | 45 HB | 100 % IACS |
R240 / H040 | Straight, dimensionally accurate rod with modest strength gain while still bendable — general machined connector parts. | 180 | 255 | 25 | 75 HB | 99 % IACS |
R250 / H065 | Standard half-hard bar for busbar terminals, screw-machine parts and contact carriers needing rigidity plus full conductivity. | 230 | 275 | 15 | 90 HB | 98.5 % IACS |
R290 / H090 | Hard-drawn rod/bar for load-carrying conductors, commutator bars and parts that must resist deformation under clamping. | 285 | 320 | 8 | 105 HB | 98 % IACS |
H110 / R360 | Heavily drawn small sections where tensile strength and springback matter more than bendability. | 340 | 380 | 3 | 118 HB | 97.5 % IACS |
What is Cu-PHCE-R220?
Cu-PHCE-R220 is Cu-PHCE in the R220 temper — most stocked condition — maximum conductivity and ductility for bending, upsetting, brazing and welded conductor work. Cu-PHCE-R220 has a yield strength of 70 MPa (10.2 ksi) and a tensile strength of 225 MPa (32.6 ksi) — weaker than 93% of copper alloy grades. Elongation at break is 45% and the elastic modulus is 117 GPa (17 Msi). Cu-PHCE-R220 has a density of 8.94 g/cm³ (0.323 lb/in³), heavier than 90% of copper alloy grades. It melts at 1,083°C (1,981 °F).
Advantages
- Forms and bends easily — 98/100, better than 99% of copper alloy grades
- Readily welded — 88/100, better than 97% of copper alloy grades
- Conducts heat well — 390 W/m·K (225.3 BTU/hr·ft·°F), better than 96% of copper alloy grades
- High electrical conductivity — 100 % IACS, better than 96% of copper alloy grades
- Ductile — tolerates forming and impact — 45%, better than 91% of copper alloy grades
Limitations
- Low strength — 70 MPa (10.2 ksi), worse than 93% of copper alloy grades
- Difficult to machine — 25/100, worse than 86% of copper alloy grades
Cu-PHCE-R220 properties
Typical room-temperature values for Cu-PHCE-R220; 15 are specific to this condition. Other listed values are Cu-PHCE reference data and may not represent this condition. Bars are the position among copper alloy grades.
Physical3
Cu-PHCE-R220 has a density of 8.94 g/cm³ (0.323 lb/in³), heavier than 90% of copper alloy grades. It melts at 1,083°C (1,981 °F).
Mechanical13
Cu-PHCE-R220 has a yield strength of 70 MPa (10.2 ksi) and a tensile strength of 225 MPa (32.6 ksi) — weaker than 93% of copper alloy grades. Elongation at break is 45% and the elastic modulus is 117 GPa (17 Msi).
Thermal6
Cu-PHCE-R220 is rated for continuous service to 200°C (392 °F). It conducts heat at 390 W/m·K (225.3 BTU/hr·ft·°F), better than 96% of copper alloy grades. Thermal expansion is 17.7 µm/m·K (9.83 µin/in·°F).
Electrical3
Cu-PHCE-R220 conducts electricity at 100 % IACS, better than 96% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is good (55/100), worse than 86% of copper alloy grades.
Sustainability4
Producing a kilogram of Cu-PHCE-R220 takes about 57 MJ of energy and emits 3.8 kg of CO₂ — less than 52% of copper alloy grades. Typical recycled content is 25%.
Manufacturability8
Cu-PHCE-R220's machinability is poor (25/100, worse than 86% of copper alloy grades); weldability excellent (88/100); formability excellent (98/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Cu-PHCE-R220
Is Cu-PHCE easy to machine?
Gummy and long-chipping — use sharp positive-rake, polished-flute tools, high speed with generous coolant; expect ~20 % of AISI 1212 rate and add free-machining alternatives (C14500/C36000) if volume machining dominates.
Can Cu-PHCE be welded?
Excellent for GTAW/GMAW, resistance and laser welding: phosphorus deoxidation removes hydrogen-embrittlement risk of ETP copper, but preheat 200–500 °C on thick sections because of the very high thermal conductivity.
Can Cu-PHCE be formed, bent or molded?
Outstanding cold formability in the annealed condition (deep drawing, upsetting, heavy bending); anneal 400–600 °C between heavy passes and expect rapid work-hardening in the hard tempers.
What surface finishes work on Cu-PHCE?
Not anodisable; takes tin, silver, nickel and gold plating readily, mirror-polishes well, and needs BTA/lacquer or plating to prevent oxide and sulphide tarnish in service.
Cu-PHCE chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Pdeliberate deoxidiser — kept low to preserve conductivity | 0 – 0.01 | 0 |
| Oessentially oxygen-free after P deoxidation; no hydrogen embrittlement | ≤ 0 | — |
| Bielectronic-grade impurity limit | ≤ 5×10⁻⁴ | — |
| Pb | ≤ 0.01 | — |
| Sb | ≤ 0 | — |
| As | ≤ 0 | — |
| Fe | ≤ 0 | — |
| S | ≤ 0 | — |
| Agcounted with Cu | ≤ 0 | — |
| CuCu + Ag, remainder; P included in the 99.95 % minimum per EN 1976 | ≥ 99.95 (balance) | — |
Cu-PHCE-R220 — frequently asked
What is Cu-PHCE-R220 used for?
Cu-PHCE-R220 is typically used for electronic connector rod stock, brazed electronic housings and precision conductor parts. In short: electronic-grade deoxidized copper; 100 % IACS conductivity; top-rated cold formability.
What is the yield strength of Cu-PHCE-R220?
Cu-PHCE-R220 has a typical yield strength of 70 MPa (10.2 ksi) and a tensile strength of 225 MPa (32.6 ksi) — weaker than 93% of copper alloy grades. Strength varies by condition: see the 6 listed tempers.
Is Cu-PHCE-R220 easy to machine?
Not especially — machinability is rated poor (25/100, worse than 86% of copper alloy grades). Gummy and long-chipping — use sharp positive-rake, polished-flute tools, high speed with generous coolant; expect ~20 % of AISI 1212 rate and add free-machining alternatives (C14500/C36000) if volume machining dominates.
Can Cu-PHCE-R220 be welded?
Yes — weldability is rated excellent (88/100). Excellent for GTAW/GMAW, resistance and laser welding: phosphorus deoxidation removes hydrogen-embrittlement risk of ETP copper, but preheat 200–500 °C on thick sections because of the very high thermal conductivity.
What surface finishes work on Cu-PHCE-R220?
Not anodisable; takes tin, silver, nickel and gold plating readily, mirror-polishes well, and needs BTA/lacquer or plating to prevent oxide and sulphide tarnish in service.
Can Cu-PHCE-R220 be formed, bent or molded?
Outstanding cold formability in the annealed condition (deep drawing, upsetting, heavy bending); anneal 400–600 °C between heavy passes and expect rapid work-hardening in the hard tempers.
What is the maximum service temperature of Cu-PHCE-R220?
Cu-PHCE-R220 is rated for continuous use to about 200°C (392 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Cu-PHCE-R220 and Cu-PHCE-H110?
R220 is the default condition — most stocked condition — maximum conductivity and ductility for bending, upsetting, brazing and welded conductor work. H110: heavily drawn small sections where tensile strength and springback matter more than bendability. Yield strength is 70 MPa in R220 versus 340 MPa in H110.
Sources
- EN 1976 — Copper and copper alloys: cast unwrought copper products — CEN (2012)
- EN 13601 — Copper rod, bar and wire for general electrical purposes — CEN (2021)
- EN 1412 — Copper and copper alloys, European numbering system — CEN (2016)
- ASM Handbook Vol.2 — Properties of Nonferrous Alloys (Copper) — ASM International (1990)
- CDA / copper.org unalloyed copper property tables — Copper Development Association (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.