Copper Alloy CC332G-HT
Heat-treated state
EN CC332G
HT = quenched (≈870 °C, water) and tempered ≈ 600 °C
Optional treatment (common on C95400-type castings) for maximum hardness and wear resistance, and to remove γ2 for better dealloying resistance; ductility drops sharply.
Values for the HT condition
Other CC332G tempers and conditions
CC332G is listed in 5 conditions; see the grade overview at CC332G.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
GSDefault Sand cast | Default condition for pump casings, valve bodies and large one-off marine castings. | 250 | 570 | 20 | 120 HB | 13 % IACS |
Continuously cast | Stock bar and tube form for machined bushes, nuts and gibs; best availability off the shelf. | 285 | 640 | 16 | 145 HB | 13 % IACS |
Permanent (chill) mould cast | Choose for repeat small/medium parts needing finer structure and ~15 % higher strength than sand cast. | 290 | 650 | 22 | 150 HB | 13 % IACS |
Centrifugally cast | Pick for bushings, sleeves, wear rings and large rings needing dense, porosity-free walls. | 290 | 650 | 18 | 150 HB | 13 % IACS |
HTThis page Quenched (≈870 °C, water) and tempered ≈ 600 °C | Optional treatment (common on C95400-type castings) for maximum hardness and wear resistance, and to remove γ2 for better dealloying resistance; ductility drops sharply. | 400 | 760 | 6 | 14 HRC | 12.5 % IACS |
What is CC332G-HT?
CC332G-HT is CC332G heat treated to HT — optional treatment (common on C95400-type castings) for maximum hardness and wear resistance, and to remove γ2 for better dealloying resistance; ductility drops sharply. CC332G-HT has a yield strength of 400 MPa (58 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 80% of copper alloy grades. Elongation at break is 6% and the elastic modulus is 110 GPa (16 Msi). CC332G-HT has a density of 7.5 g/cm³ (0.271 lb/in³), lighter than 98% of copper alloy grades. It melts at 1,040°C (1,904 °F). GS is the default condition FabDigit quotes; HT is available on request or by drawing note.
Advantages
- Lightweight — 7.5 g/cm³ (0.271 lb/in³), better than 98% of copper alloy grades
- Good corrosion resistance — 82/100, better than 98% of copper alloy grades
- High service temperature — 300°C (572 °F), better than 85% of copper alloy grades
- High strength — 400 MPa (58 ksi), better than 80% of copper alloy grades
Limitations
- Low fracture toughness — 22 MPa·√m (20 ksi·√in), worse than 95% of copper alloy grades
- Limited formability — 8/100, worse than 94% of copper alloy grades
- Limited ductility — 6%, worse than 89% of copper alloy grades
CC332G-HT properties
Typical room-temperature values for CC332G-HT; 23 are specific to this condition. Other listed values are CC332G reference data and may not represent this condition. Bars are the position among copper alloy grades.
Physical3
CC332G-HT has a density of 7.5 g/cm³ (0.271 lb/in³), lighter than 98% of copper alloy grades. It melts at 1,040°C (1,904 °F).
Mechanical16
CC332G-HT has a yield strength of 400 MPa (58 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 80% of copper alloy grades. Elongation at break is 6% and the elastic modulus is 110 GPa (16 Msi).
Thermal6
CC332G-HT is rated for continuous service to 300°C (572 °F). It conducts heat at 56 W/m·K (32.4 BTU/hr·ft·°F), worse than 64% of copper alloy grades. Thermal expansion is 16.2 µm/m·K (9 µin/in·°F).
Electrical3
CC332G-HT conducts electricity at 12.5 % IACS, worse than 60% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (82/100), better than 98% of copper alloy grades.
Sustainability4
Producing a kilogram of CC332G-HT takes about 60 MJ of energy and emits 4.2 kg of CO₂ — more than 69% of copper alloy grades. Typical recycled content is 50%.
Manufacturability8
CC332G-HT's machinability is fair (45/100, better than 64% of copper alloy grades); weldability good (55/100); formability not recommended (8/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with CC332G-HT
Is CC332G easy to machine?
Machines like a tough duplex bronze: rigid setup, positive-rake carbide, 60–120 m/min, moderate feed and generous coolant; chips are continuous and abrasive on tooling.
Can CC332G be welded?
Readily GTAW/GMAW welded with matching CuAl10Ni or CuAl9Ni5 filler, preheat 150–250 °C for heavy sections; keep interpass low and avoid slow cooling through 550–450 °C to limit γ2 formation.
Can CC332G be formed, bent or molded?
Foundry alloy only — bottom/tangential gating with generous filtration to trap alumina films; feed with chills, no meaningful cold forming, hot working only 800–900 °C.
What surface finishes work on CC332G?
Pickle in dilute sulfuric/nitric to remove the alumina skin before painting; takes a bright polish but oxidises to an olive-brown patina; do not anodise, use epoxy or antifouling coatings in seawater.
CC332G 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 |
|---|---|---|
| Al | 8.5 – 11 | 10 |
| Fe | 1 – 3 | 2 |
| NiNi + Co | 1 – 3 | 2.5 |
| Mnimpurity/deoxidation range | ≤ 1 | 0.4 |
| Zn | ≤ 0.5 | — |
| Sn | ≤ 0.1 | — |
| Si | ≤ 0.2 | — |
| Pb | ≤ 0.05 | — |
| Mg | ≤ 0.05 | — |
| Curemainder, typically 83–88 % | balance | — |
CC332G-HT — frequently asked
What is CC332G-HT used for?
CC332G-HT is typically used for pump impellers, valve bodies, marine propeller hubs and wear plates. In short: nickel-strengthened cast aluminum bronze; seawater erosion resistance; weldable with matching filler.
What is the yield strength of CC332G-HT?
CC332G-HT has a typical yield strength of 400 MPa (58 ksi) and a tensile strength of 760 MPa (110 ksi) — stronger than 80% of copper alloy grades. Strength varies by condition: see the 5 listed tempers.
Is CC332G-HT easy to machine?
Reasonably — machinability is rated fair (45/100, better than 64% of copper alloy grades). Machines like a tough duplex bronze: rigid setup, positive-rake carbide, 60–120 m/min, moderate feed and generous coolant; chips are continuous and abrasive on tooling.
Can CC332G-HT be welded?
Yes — weldability is rated good (55/100). Readily GTAW/GMAW welded with matching CuAl10Ni or CuAl9Ni5 filler, preheat 150–250 °C for heavy sections; keep interpass low and avoid slow cooling through 550–450 °C to limit γ2 formation.
What surface finishes work on CC332G-HT?
Pickle in dilute sulfuric/nitric to remove the alumina skin before painting; takes a bright polish but oxidises to an olive-brown patina; do not anodise, use epoxy or antifouling coatings in seawater.
Can CC332G-HT be formed, bent or molded?
Foundry alloy only — bottom/tangential gating with generous filtration to trap alumina films; feed with chills, no meaningful cold forming, hot working only 800–900 °C.
What is the maximum service temperature of CC332G-HT?
CC332G-HT 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 CC332G-GS and CC332G-HT?
GS is the default condition — default condition for pump casings, valve bodies and large one-off marine castings. HT: optional treatment (common on C95400-type castings) for maximum hardness and wear resistance, and to remove γ2 for better dealloying resistance; ductility drops sharply. Yield strength is 250 MPa in GS versus 400 MPa in HT.
Sources
- EN 1982 — Copper and copper alloys: ingots and castings (CuAl10Ni3Fe2-C, CC332G) — CEN (2017)
- ASTM B148 — Aluminum-Bronze Sand Castings (C95400) — ASTM International (2018)
- GB/T 1176 — (ZCuAl10Fe3Mn2) (2013)
- CDA alloy datasheet C95400 — 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.