Copper Alloy CC331G
EN CC331G
CC331G (CuAl10Fe2-C, equivalent to C95200 and ZCuAl10Fe3) is a cast aluminum bronze with roughly 10 % Al and 2 % Fe, the general-purpose grade of the C90000–C95999 cast bronze family.
Reference datasheet — CC331G 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
CC331G tempers and conditions
CC331G is supplied in 5 conditions, soft to hard. GS is the default FabDigit quotes; the values on this page are for it.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Stress relieved | Used on large or heavily machined castings to remove residual stress and stabilise dimensions; slight softening, better ductility. | 190 | 530 | 28 | 115 HB | 16 % IACS |
GSDefault Sand cast | Standard sand-cast condition for general housings, gears, bushings and marine fittings. | 200 | 550 | 25 | 120 HB | — |
Permanent (chill) mould cast, as-cast | Choose for repeat production of small/medium parts needing finer grain and ~10 % higher strength than sand cast. | 230 | 590 | 22 | 130 HB | 15 % IACS |
Continuous cast bar/tube | Stock bar and tube form for machined bushings and wear plates; uniform fine structure, minimal machining allowance. | 240 | 600 | 20 | 135 HB | 15 % IACS |
Centrifugally cast | Best for sleeves, bushings and worm-gear rims: dense, porosity-free wall with the highest strength of the cast conditions. | 250 | 620 | 20 | 140 HB | 15 % IACS |
What is CC331G?
CC331G (CuAl10Fe2-C, equivalent to C95200 and ZCuAl10Fe3) is a cast aluminum bronze with roughly 10 % Al and 2 % Fe, the general-purpose grade of the C90000–C95999 cast bronze family. Engineers use it for sand, continuous and centrifugal castings that need 550 MPa tensile strength, 200 MPa yield, 25 % elongation and 120 HB together with wear and seawater corrosion resistance up to 300 °C. It is available only as castings and machines slowly (rating 45) with gummy chips. For severe seawater erosion or cavitation duty, step up to nickel-aluminum bronze CC332G or CC333G. CC331G has a density of 7.64 g/cm³ (0.276 lb/in³), lighter than 92% of copper alloy grades. It melts at 1,040°C (1,904 °F). CC331G has a yield strength of 200 MPa (29 ksi) and a tensile strength of 550 MPa (79.8 ksi) — weaker than 54% of copper alloy grades. Elongation at break is 25% and the elastic modulus is 110 GPa (16 Msi).
What is CC331G used for?
- worm gears
- bearings and bushings
- marine hardware
- valve seats
Advantages
- Lightweight — 7.64 g/cm³ (0.276 lb/in³), better than 92% of copper alloy grades
- High service temperature — 300°C (572 °F), better than 85% of copper alloy grades
- Good corrosion resistance — 72/100, better than 84% of copper alloy grades
- Readily welded — 65/100, better than 80% of copper alloy grades
CC331G properties
Typical room-temperature values for CC331G-GS; bars are the position among copper alloy grades.
Physical3
CC331G has a density of 7.64 g/cm³ (0.276 lb/in³), lighter than 92% of copper alloy grades. It melts at 1,040°C (1,904 °F).
Mechanical14
CC331G has a yield strength of 200 MPa (29 ksi) and a tensile strength of 550 MPa (79.8 ksi) — weaker than 54% of copper alloy grades. Elongation at break is 25% and the elastic modulus is 110 GPa (16 Msi).
Thermal6
CC331G is rated for continuous service to 300°C (572 °F). It conducts heat at 59 W/m·K (34.1 BTU/hr·ft·°F), worse than 61% of copper alloy grades. Thermal expansion is 16.2 µm/m·K (9 µin/in·°F).
Electrical3
CC331G conducts electricity at 15 % IACS, worse than 54% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (72/100), better than 84% of copper alloy grades.
Sustainability4
Producing a kilogram of CC331G takes about 55 MJ of energy and emits 3.8 kg of CO₂ — less than 72% of copper alloy grades. Typical recycled content is 50%.
Manufacturability8
CC331G's machinability is fair (45/100, better than 64% of copper alloy grades); weldability good (65/100); 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. CC331G is highlighted; hover a dot for its name, or open the interactive family chart.
Working with CC331G
Is CC331G easy to machine?
Machines like a tough gummy bronze: use sharp positive-rake carbide, 60–120 m/min, heavy feed, rigid setup and flood coolant to break the continuous chip.
Can CC331G be welded?
GTAW/GMAW with ECuAl-A2 / CuAl9 filler, 150–250 °C preheat, low interpass heat and mechanical removal of the alumina film; avoid oxyacetylene and brazing.
Can CC331G be formed, bent or molded?
Foundry alloy only — cast with bottom/quiet gating and generous risers to prevent oxide-film folds; hot working of ingot is possible at 750–900 °C but not cold forming.
CC331G 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 |
|---|---|---|
| AlC95200 narrows to 8.5–9.5 % | 8.5 – 11 | 10 |
| FeC95200: 2.5–4.0 % | 1.5 – 3.5 | 2.5 |
| Mn | ≤ 1 | 0.3 |
| NiNi+Co | ≤ 1 | 0.3 |
| Si | ≤ 0.2 | 0.05 |
| Sn | ≤ 0.1 | |
| Zn | ≤ 0.5 | |
| Pblow-Pb requirement for potable water service | ≤ 0.05 | |
| Curemainder; ASTM C95200 requires Cu ≥ 86.0 % | ≥ 83 (balance) |
What surface finishes work on CC331G?
Not anodizable; take a good mechanical polish, accepts nickel/chrome plating after activation, or leave bare for a self-protecting olive-brown patina in seawater.
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 CC331G in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- CuAl10Fe2-C
- Similar grades
- C95200ZCuAl10Fe3
How much does CC331G cost?
CC331G is a high-cost copper alloy ($$$$), pricier than about 78% 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.
CC331G — frequently asked
What is CC331G used for?
CC331G is typically used for worm gears, bearings and bushings, marine hardware and valve seats. In short: workhorse cast aluminum bronze; high strength with 25 % elongation; weldable cast bronze.
What is the yield strength of CC331G?
CC331G has a typical yield strength of 200 MPa (29 ksi) and a tensile strength of 550 MPa (79.8 ksi) — weaker than 54% of copper alloy grades. Strength varies by condition: see the 5 listed tempers.
Is CC331G easy to machine?
Reasonably — machinability is rated fair (45/100, better than 64% of copper alloy grades). Machines like a tough gummy bronze: use sharp positive-rake carbide, 60–120 m/min, heavy feed, rigid setup and flood coolant to break the continuous chip.
Can CC331G be welded?
Yes — weldability is rated good (65/100). GTAW/GMAW with ECuAl-A2 / CuAl9 filler, 150–250 °C preheat, low interpass heat and mechanical removal of the alumina film; avoid oxyacetylene and brazing.
What surface finishes work on CC331G?
Not anodizable; take a good mechanical polish, accepts nickel/chrome plating after activation, or leave bare for a self-protecting olive-brown patina in seawater.
Can CC331G be formed, bent or molded?
Foundry alloy only — cast with bottom/quiet gating and generous risers to prevent oxide-film folds; hot working of ingot is possible at 750–900 °C but not cold forming.
What is the maximum service temperature of CC331G?
CC331G is rated for continuous use to about 300°C (572 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between CC331G-GS and CC331G-GZ?
GS is the default condition — standard sand-cast condition for general housings, gears, bushings and marine fittings. GZ: best for sleeves, bushings and worm-gear rims: dense, porosity-free wall with the highest strength of the cast conditions. Yield strength is 200 MPa in GS versus 250 MPa in GZ.
How much does CC331G cost?
CC331G is a high-cost copper alloy ($$$$), pricier than about 78% 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 (CuAl10Fe2-C / CC331G) — CEN (2017)
- ASTM B148 — Aluminum-Bronze Sand Castings (C95200) — ASTM International (2019)
- ASTM B505/B505M — Copper Alloy Continuous Castings — ASTM International (2018)
- GB/T 1176 — (ZCuAl10Fe3) — SAC (2013)
- CDA Alloy Datasheet C95200 — Copper Development Association (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; 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.