Copper Alloy C47000-O60
Temper
UNS C47000
O60 = soft annealed
Pick when maximum ductility is needed for coiling, spooled wire feed or forming before use.
Values for the O60 condition
Other C47000 tempers and conditions
C47000 is listed in 2 conditions; see the grade overview at C47000.
- O60
- AS-WELDED
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
O60This page Soft annealed | Pick when maximum ductility is needed for coiling, spooled wire feed or forming before use. | 150 | 370 | 42 | 90 HB | 26 % IACS |
AS-WELDEDDefault deposited braze-weld metal (RBCuZn-A) | Default condition: properties of the solidified braze-weld/fillet deposit on steel or cast iron. | 160 | 350 | 32 | 100 HB | 26 % IACS |
What is C47000-O60?
C47000-O60 is C47000 in the O60 temper — pick when maximum ductility is needed for coiling, spooled wire feed or forming before use. C47000-O60 has a yield strength of 150 MPa (21.8 ksi) and a tensile strength of 370 MPa (53.7 ksi) — weaker than 69% of copper alloy grades. Elongation at break is 42% and the elastic modulus is 100 GPa (14.5 Msi). C47000-O60 has a density of 8.41 g/cm³ (0.304 lb/in³), lighter than 72% of copper alloy grades. It melts at 885°C (1,625 °F). AS-WELDED is the default condition FabDigit quotes; O60 is available on request or by drawing note.
Advantages
- Ductile — tolerates forming and impact — 42%, better than 86% of copper alloy grades
- Forms and bends easily — 75/100, better than 82% of copper alloy grades
- Readily welded — 60/100, better than 76% of copper alloy grades
Limitations
- Low stiffness — 100 GPa (14.5 Msi), worse than 82% of copper alloy grades
C47000-O60 properties
Typical room-temperature values for C47000-O60; 20 are specific to this condition. Other listed values are C47000 reference data and may not represent this condition. Bars are the position among copper alloy grades.
Physical3
C47000-O60 has a density of 8.41 g/cm³ (0.304 lb/in³), lighter than 72% of copper alloy grades. It melts at 885°C (1,625 °F).
Mechanical14
C47000-O60 has a yield strength of 150 MPa (21.8 ksi) and a tensile strength of 370 MPa (53.7 ksi) — weaker than 69% of copper alloy grades. Elongation at break is 42% and the elastic modulus is 100 GPa (14.5 Msi).
Thermal6
C47000-O60 is rated for continuous service to 200°C (392 °F). It conducts heat at 116 W/m·K (67 BTU/hr·ft·°F), better than 64% of copper alloy grades. Thermal expansion is 21.2 µm/m·K (11.8 µin/in·°F).
Electrical3
C47000-O60 conducts electricity at 26 % IACS, better than 63% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is good (62/100), worse than 57% of copper alloy grades.
Sustainability4
Producing a kilogram of C47000-O60 takes about 55 MJ of energy and emits 3.6 kg of CO₂ — less than 72% of copper alloy grades. Typical recycled content is 55%.
Manufacturability8
C47000-O60's machinability is fair (50/100, better than 69% of copper alloy grades); weldability good (60/100); formability very good (75/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with C47000-O60
Is C47000 easy to machine?
Braze deposits machine like naval brass (~30 % of AISI 1212): use sharp positive-rake tools, light feeds; unleaded, so chips are stringy.
Can C47000 be welded?
Braze weld with neutral-to-slightly-oxidising oxy-acetylene flame or TIG at 850–900 °C with borate flux; keep base metal below its melting point and ventilate for zinc fume.
Can C47000 be formed, bent or molded?
Rod is supplied straight or coiled; α+β structure cold-bends moderately, anneal near 500 °C if heavy forming is required.
What surface finishes work on C47000?
Wire-brush/pickle off flux residue immediately; deposit takes polishing, tin or nickel plating, and clear lacquer — no anodizing.
C47000 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 |
|---|---|---|
| CuAWS A5.8/A5.27 RBCuZn-A | 57 – 61 | 59 |
| Snsuppresses zinc fuming, raises dezincification resistance | 0.25 – 1 | 0.6 |
| Pb | ≤ 0.05 | — |
| Femax (impurity) | ≤ 0.25 | — |
| Al | ≤ 0.01 | — |
| Other (total)total of unspecified elements | ≤ 0.5 | — |
| Znbalance, nominally ~40 % | balance | — |
C47000-O60 — frequently asked
What is C47000-O60 used for?
C47000-O60 is typically used for cast iron repair welding, sheet metal braze welding, galvanized steel joints and brass fabrication. In short: low-fuming braze-welding rod; colour-matched brass filler; joins dissimilar steel and brass.
What is the yield strength of C47000-O60?
C47000-O60 has a typical yield strength of 150 MPa (21.8 ksi) and a tensile strength of 370 MPa (53.7 ksi) — weaker than 69% of copper alloy grades. Strength varies by condition: see the 2 listed tempers.
Is C47000-O60 easy to machine?
Reasonably — machinability is rated fair (50/100, better than 69% of copper alloy grades). Braze deposits machine like naval brass (~30 % of AISI 1212): use sharp positive-rake tools, light feeds; unleaded, so chips are stringy.
Can C47000-O60 be welded?
Yes — weldability is rated good (60/100). Braze weld with neutral-to-slightly-oxidising oxy-acetylene flame or TIG at 850–900 °C with borate flux; keep base metal below its melting point and ventilate for zinc fume.
What surface finishes work on C47000-O60?
Wire-brush/pickle off flux residue immediately; deposit takes polishing, tin or nickel plating, and clear lacquer — no anodizing.
Can C47000-O60 be formed, bent or molded?
Rod is supplied straight or coiled; α+β structure cold-bends moderately, anneal near 500 °C if heavy forming is required.
What is the maximum service temperature of C47000-O60?
C47000-O60 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 C47000 AS-WELDED and C47000-O60?
AS-WELDED is the default condition — default condition: properties of the solidified braze-weld/fillet deposit on steel or cast iron. O60: pick when maximum ductility is needed for coiling, spooled wire feed or forming before use. Yield strength is 160 MPa in AS-WELDED versus 150 MPa in O60.
Sources
- AWS A5.8/A5.8M — Specification for Filler Metals for Brazing and Braze Welding — American Welding Society (2019)
- AWS A5.27/A5.27M — Copper and Copper-Alloy Rods for Oxyfuel Gas Welding — American Welding Society (2017)
- UNS C47000 alloy data (naval-brass welding rod) — Copper Development Association (copper.org) (2023)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
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.