Copper Alloy CC763S
EN CC763S
CC763S (CuZn32Al2Mn2Fe1-C, closely equivalent to C86200) is a high-tensile aluminium-manganese cast brass in which Al, Mn and Fe additions strengthen an alpha-beta zinc brass matrix, listed within the EN cast copper-alloy family.
Reference datasheet — CC763S is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the GS condition
CC763S tempers and conditions
CC763S is supplied in 4 conditions, soft to hard. GS is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
GSDefault Sand cast | Default engineering-casting condition: large or one-off parts, valve bodies, bearing housings, gears. | 300 | 640 | 14 | 150 HB | 12 % IACS |
Gravity die (permanent mould) cast | Pick for repeat medium-volume parts needing tighter tolerances and finer grain than sand casting. | 330 | 670 | 14 | 160 HB | 12 % IACS |
Continuously cast | Stock bar and tube for machined bearings and nuts — uniform fine structure, ready for turning. | 370 | 720 | 12 | 165 HB | 12 % IACS |
Centrifugally cast | Best for bushings, sleeves and worm-wheel rims: dense, porosity-free wall with the highest strength. | 380 | 730 | 12 | 170 HB | 12 % IACS |
What is CC763S?
CC763S (CuZn32Al2Mn2Fe1-C, closely equivalent to C86200) is a high-tensile aluminium-manganese cast brass in which Al, Mn and Fe additions strengthen an alpha-beta zinc brass matrix, listed within the EN cast copper-alloy family. Engineers specify it for engineering castings that need strength plus seawater tolerance: 300 MPa yield, 640 MPa tensile, 14 % elongation and 150 HB in sand, chill, centrifugal and continuous cast forms (GS, GM, GZ, GC). Limits are a service ceiling near 200 °C, poor fusion weldability from zinc volatilisation, and machinability roughly one third that of free-cutting C36000. Where higher strength is required, CC764S is the direct step up. CC763S has a density of 7.9 g/cm³ (0.285 lb/in³), lighter than 88% of copper alloy grades. It melts at 880°C (1,616 °F). CC763S has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 640 MPa (92.8 ksi) — stronger than 61% of copper alloy grades. Elongation at break is 14% and the elastic modulus is 102 GPa (14.8 Msi).
What is CC763S used for?
- valve bodies
- marine hardware
- gears
- bearings
Advantages
- Low embodied carbon — 3.2 kg CO₂/kg, better than 92% of copper alloy grades
CC763S properties
Typical room-temperature values for CC763S-GS; bars are the position among copper alloy grades.
Physical3
CC763S has a density of 7.9 g/cm³ (0.285 lb/in³), lighter than 88% of copper alloy grades. It melts at 880°C (1,616 °F).
Mechanical15
CC763S has a yield strength of 300 MPa (43.5 ksi) and a tensile strength of 640 MPa (92.8 ksi) — stronger than 61% of copper alloy grades. Elongation at break is 14% and the elastic modulus is 102 GPa (14.8 Msi).
Thermal6
CC763S is rated for continuous service to 200°C (392 °F). It conducts heat at 60 W/m·K (34.7 BTU/hr·ft·°F), worse than 59% of copper alloy grades. Thermal expansion is 20.5 µm/m·K (11.4 µin/in·°F).
Electrical3
CC763S conducts electricity at 12 % IACS, worse than 62% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is good (62/100), worse than 57% of copper alloy grades.
Sustainability4
Producing a kilogram of CC763S takes about 48 MJ of energy and emits 3.2 kg of CO₂ — less than 92% of copper alloy grades. Typical recycled content is 70%.
Manufacturability8
CC763S's machinability is fair (40/100, better than 57% of copper alloy grades); weldability poor (30/100); formability poor (20/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the copper alloy family
Yield strength against density for every copper alloy grade FabDigit runs. CC763S is highlighted; hover a dot for its name, or open the interactive family chart.
Working with CC763S
Is CC763S easy to machine?
Machines like a tough alpha-beta brass, roughly one-third the ease of C36000 — use sharp carbide, positive rake, 0.1–0.3 mm/rev feeds and generous coolant; chips are gummy and Fe-rich particles accelerate tool wear.
Can CC763S be welded?
Poor fusion weldability: zinc volatilisation and hot cracking; if unavoidable use MIG/TIG with aluminium-bronze filler, low heat input, preheat 150–200 °C and good fume extraction — brazing or mechanical joining is preferred.
Can CC763S be formed, bent or molded?
A casting alloy only — pour at ~1000–1050 °C with degassed, well-fluxed melt, generous risers and chills for its short freezing range; no cold forming, but hot working around 700–750 °C is possible for wrought analogues.
CC763S 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 |
|---|---|---|
| Cumatrix former | 62 – 68 | 64.5 |
| Alprincipal strengthener; raises oxide film stability | 1.3 – 2.5 | 2 |
| Mn | 1.5 – 3 | 2 |
| Fegrain refiner / Fe-rich particles | 0.5 – 1.5 | 1 |
| Niimpurity limit | ≤ 1 | |
| Snimpurity limit | ≤ 0.4 | |
| Pbimpurity limit; not a free-cutting addition | ≤ 0.5 | |
| Siimpurity limit | ≤ 0.1 | |
| Znremainder, nominally ~32 % | balance |
What surface finishes work on CC763S?
Not anodisable; takes a bright machined or polished finish, and can be tin, nickel or chromium plated after thorough oxide/Al-film removal — passivation or lacquer helps prevent tarnish.
Surface treatments FabDigit runs on copper alloy parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Equivalent designations
Standards and trade names that resolve to Copper Alloy CC763S in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- CuZn32AI2Mn2Fe1-C
- Similar grades
- C86200
How much does CC763S cost?
CC763S is a premium-cost copper alloy ($$$), cheaper than about 51% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
CC763S — frequently asked
What is CC763S used for?
CC763S is typically used for valve bodies, marine hardware, gears and bearings. In short: high-tensile cast brass; seawater-tolerant casting alloy; strong but poorly weldable.
What is the yield strength of CC763S?
CC763S has a typical yield strength of 300 MPa (43.5 ksi) and a tensile strength of 640 MPa (92.8 ksi) — stronger than 61% of copper alloy grades. Strength varies by condition: see the 4 listed tempers.
Is CC763S easy to machine?
Not especially — machinability is rated fair (40/100, better than 57% of copper alloy grades). Machines like a tough alpha-beta brass, roughly one-third the ease of C36000 — use sharp carbide, positive rake, 0.1–0.3 mm/rev feeds and generous coolant; chips are gummy and Fe-rich particles accelerate tool wear.
Can CC763S be welded?
Not readily — weldability is rated poor (30/100). Poor fusion weldability: zinc volatilisation and hot cracking; if unavoidable use MIG/TIG with aluminium-bronze filler, low heat input, preheat 150–200 °C and good fume extraction — brazing or mechanical joining is preferred.
What surface finishes work on CC763S?
Not anodisable; takes a bright machined or polished finish, and can be tin, nickel or chromium plated after thorough oxide/Al-film removal — passivation or lacquer helps prevent tarnish.
Can CC763S be formed, bent or molded?
A casting alloy only — pour at ~1000–1050 °C with degassed, well-fluxed melt, generous risers and chills for its short freezing range; no cold forming, but hot working around 700–750 °C is possible for wrought analogues.
What is the maximum service temperature of CC763S?
CC763S 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 CC763S-GS and CC763S-GZ?
GS is the default condition — default engineering-casting condition: large or one-off parts, valve bodies, bearing housings, gears. GZ: best for bushings, sleeves and worm-wheel rims: dense, porosity-free wall with the highest strength. Yield strength is 300 MPa in GS versus 380 MPa in GZ.
How much does CC763S cost?
CC763S is a premium-cost copper alloy ($$$), cheaper than about 51% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- EN 1982 — Copper and copper alloys: Ingots and castings — CEN (2017)
- ASTM B584 / B505 (C86200 manganese bronze castings) — ASTM International (2022)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- CDA alloy datasheet C86200 (high-strength manganese bronze) — Copper Development Association (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.