Copper Alloy ZCuAl10Fe3-La
Finish state
UNS C95200
La = continuously cast bar/tube
Stock bar and tube form for machined bushings and nuts; uniform fine structure with good machining stock removal.
Values for the La condition
Other ZCuAl10Fe3 tempers and conditions
ZCuAl10Fe3 is listed in 4 conditions; see the grade overview at ZCuAl10Fe3.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
SDefault Sand cast | General-purpose condition for larger, one-off or low-volume castings such as valve bodies, worm wheels and bearing housings. | 200 | 540 | 20 | 120 HB | 13 % IACS |
Permanent (metal) mould cast | Choose for repeat production of small/medium parts where the faster chill gives finer grain, higher strength and better surface. | 230 | 590 | 20 | 130 HB | 13 % IACS |
LaThis page Continuously cast bar/tube | Stock bar and tube form for machined bushings and nuts; uniform fine structure with good machining stock removal. | 235 | 590 | 20 | 130 HB | 13 % IACS |
Centrifugally cast | Best for bushings, sleeves and worm-wheel rims: dense, porosity-free wall with the highest strength and wear life. | 240 | 600 | 20 | 135 HB | 13 % IACS |
What is ZCuAl10Fe3-La?
ZCuAl10Fe3-La is ZCuAl10Fe3 supplied in the La condition — stock bar and tube form for machined bushings and nuts; uniform fine structure with good machining stock removal. ZCuAl10Fe3-La has a yield strength of 235 MPa (34.1 ksi) and a tensile strength of 590 MPa (85.6 ksi) — stronger than 52% of copper alloy grades. Elongation at break is 20% and the elastic modulus is 110 GPa (16 Msi). ZCuAl10Fe3-La has a density of 7.5 g/cm³ (0.271 lb/in³), lighter than 98% of copper alloy grades. It melts at 1,045°C (1,913 °F). S is the default condition FabDigit quotes; La 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 — 77/100, better than 92% of copper alloy grades
- High service temperature — 300°C (572 °F), better than 85% of copper alloy grades
- Readily welded — 60/100, better than 76% of copper alloy grades
ZCuAl10Fe3-La properties
Typical room-temperature values for ZCuAl10Fe3-La; 22 are specific to this condition. Other listed values are ZCuAl10Fe3 reference data and may not represent this condition. Bars are the position among copper alloy grades.
Physical3
ZCuAl10Fe3-La has a density of 7.5 g/cm³ (0.271 lb/in³), lighter than 98% of copper alloy grades. It melts at 1,045°C (1,913 °F).
Mechanical16
ZCuAl10Fe3-La has a yield strength of 235 MPa (34.1 ksi) and a tensile strength of 590 MPa (85.6 ksi) — stronger than 52% of copper alloy grades. Elongation at break is 20% and the elastic modulus is 110 GPa (16 Msi).
Thermal6
ZCuAl10Fe3-La 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
ZCuAl10Fe3-La conducts electricity at 13 % IACS, worse than 58% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (77/100), better than 92% of copper alloy grades.
Sustainability4
Producing a kilogram of ZCuAl10Fe3-La takes about 58 MJ of energy and emits 3.8 kg of CO₂ — more than 61% of copper alloy grades. Typical recycled content is 45%.
Manufacturability7
ZCuAl10Fe3-La's machinability is fair (45/100, better than 64% of copper alloy grades); weldability good (60/100); formability poor (22/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ZCuAl10Fe3-La
Is ZCuAl10Fe3 easy to machine?
Machines like a tough bronze — rigid setup, sharp positive-rake carbide, moderate speed with generous coolant; hard κ/Fe particles cause abrasive tool wear and long stringy chips.
Can ZCuAl10Fe3 be welded?
Weldable by GTAW/GMAW with matching Cu-Al filler (e.g. ERCuAl-A2), 150–250 °C preheat, argon shielding and thorough oxide removal; avoid overheating to limit brittle γ2 phase.
Can ZCuAl10Fe3 be formed, bent or molded?
A casting alloy only — pour at 1150–1200 °C with quiet bottom gating, generous risers and degassing; the alumina film makes turbulence-free filling essential.
What surface finishes work on ZCuAl10Fe3?
Polishes to a golden lustre and can be shot-blasted or passivated; electroplating and soldering require aggressive oxide removal or a nickel strike.
ZCuAl10Fe3 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 | 2 – 4 | 3 |
| Mnimpurity/optional | ≤ 1 | 0.3 |
| Znimpurity | ≤ 0.4 | — |
| Siimpurity | ≤ 0.2 | — |
| Snimpurity | ≤ 0.3 | — |
| Pbimpurity | ≤ 0.3 | — |
| Nicounted with Cu in some editions | ≤ 3 | — |
| Cubalance, total impurities ≤1.0 % | balance | — |
ZCuAl10Fe3-La — frequently asked
What is ZCuAl10Fe3-La used for?
ZCuAl10Fe3-La is typically used for propellers, worm gears, bushings and valve seats. In short: workhorse aluminium bronze; wear- and seawater-resistant; abrasive on tooling.
What is the yield strength of ZCuAl10Fe3-La?
ZCuAl10Fe3-La has a typical yield strength of 235 MPa (34.1 ksi) and a tensile strength of 590 MPa (85.6 ksi) — stronger than 52% of copper alloy grades. Strength varies by condition: see the 4 listed tempers.
Is ZCuAl10Fe3-La easy to machine?
Reasonably — machinability is rated fair (45/100, better than 64% of copper alloy grades). Machines like a tough bronze — rigid setup, sharp positive-rake carbide, moderate speed with generous coolant; hard κ/Fe particles cause abrasive tool wear and long stringy chips.
Can ZCuAl10Fe3-La be welded?
Yes — weldability is rated good (60/100). Weldable by GTAW/GMAW with matching Cu-Al filler (e.g. ERCuAl-A2), 150–250 °C preheat, argon shielding and thorough oxide removal; avoid overheating to limit brittle γ2 phase.
What surface finishes work on ZCuAl10Fe3-La?
Polishes to a golden lustre and can be shot-blasted or passivated; electroplating and soldering require aggressive oxide removal or a nickel strike.
Can ZCuAl10Fe3-La be formed, bent or molded?
A casting alloy only — pour at 1150–1200 °C with quiet bottom gating, generous risers and degassing; the alumina film makes turbulence-free filling essential.
What is the maximum service temperature of ZCuAl10Fe3-La?
ZCuAl10Fe3-La 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 ZCuAl10Fe3-S and ZCuAl10Fe3-Li?
S is the default condition — general-purpose condition for larger, one-off or low-volume castings such as valve bodies, worm wheels and bearing housings. Li: best for bushings, sleeves and worm-wheel rims: dense, porosity-free wall with the highest strength and wear life. Yield strength is 200 MPa in S versus 240 MPa in Li.
Sources
- ASTM B148 Standard Specification for Aluminum-Bronze Sand Castings — ASTM (2019)
- CDA Alloy C95200 property datasheet — Copper Development Association (2023)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials — ASM International (2005)
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.