Copper Alloy ZCuAl10Fe3Mn2-Li
Finish state
UNS C95400
Li = centrifugally cast
Use for bushings, cylinder liners and large-diameter worm gear rings; the dense, shrinkage-free structure gives the highest properties, 620 MPa tensile, 265 MPa yield and 145 HB, plus good pressure tightness.
Values for the Li condition
Other ZCuAl10Fe3Mn2 tempers and conditions
ZCuAl10Fe3Mn2 is listed in 5 conditions; see the grade overview at ZCuAl10Fe3Mn2.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
SDefault Sand cast | Pick this most common as-cast state for one-off or small-batch heavy-duty worm wheels, valve bodies and pump casings; 560 MPa tensile, 220 MPa yield, 18% elongation and service to 300 °C. | 220 | 560 | 18 | 130 HB | 13 % IACS |
Permanent (metal) mould cast | Choose for batch production of small parts such as bushings and gear-ring blanks; rapid cooling in the metal mould refines the structure to 600 MPa tensile, 250 MPa yield and 22% elongation. | 250 | 600 | 22 | 140 HB | 13 % IACS |
Continuously cast bar/tube | Pick stock bar and tube for direct machining of bushings, nuts and guide components; the uniform structure cuts predictably at 600 MPa tensile, 255 MPa yield and 20% elongation. | 255 | 600 | 20 | 140 HB | 13 % IACS |
LiThis page Centrifugally cast | Use for bushings, cylinder liners and large-diameter worm gear rings; the dense, shrinkage-free structure gives the highest properties, 620 MPa tensile, 265 MPa yield and 145 HB, plus good pressure tightness. | 265 | 620 | 20 | 145 HB | 13 % IACS |
Quenched from ~900 °C and tempered ~650 °C | Choose when quenched from ~900 °C and tempered at ~650 °C for heavy-duty gears and die inserts needing 700 MPa tensile and 190 HB; elongation drops by about half, to 9%. | 350 | 700 | 9 | 12 HRC | 12 % IACS |
What is ZCuAl10Fe3Mn2-Li?
ZCuAl10Fe3Mn2-Li is ZCuAl10Fe3Mn2 supplied in the Li condition — use for bushings, cylinder liners and large-diameter worm gear rings; the dense, shrinkage-free structure gives the highest properties, 620 MPa tensile, 265 MPa yield and 145 HB, plus good pressure tightness. ZCuAl10Fe3Mn2-Li has a yield strength of 265 MPa (38.4 ksi) and a tensile strength of 620 MPa (89.9 ksi) — stronger than 55% of copper alloy grades. Elongation at break is 20% and the elastic modulus is 110 GPa (16 Msi). ZCuAl10Fe3Mn2-Li has a density of 7.5 g/cm³ (0.271 lb/in³), lighter than 98% of copper alloy grades. It melts at 1,030°C (1,886 °F). S is the default condition FabDigit quotes; Li 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 — 74/100, better than 88% of copper alloy grades
- High service temperature — 300°C (572 °F), better than 85% of copper alloy grades
Limitations
- Limited formability — 18/100, worse than 75% of copper alloy grades
ZCuAl10Fe3Mn2-Li properties
Typical room-temperature values for ZCuAl10Fe3Mn2-Li; 21 are specific to this condition. Other listed values are ZCuAl10Fe3Mn2 reference data and may not represent this condition. Bars are the position among copper alloy grades.
Physical3
ZCuAl10Fe3Mn2-Li has a density of 7.5 g/cm³ (0.271 lb/in³), lighter than 98% of copper alloy grades. It melts at 1,030°C (1,886 °F).
Mechanical16
ZCuAl10Fe3Mn2-Li has a yield strength of 265 MPa (38.4 ksi) and a tensile strength of 620 MPa (89.9 ksi) — stronger than 55% of copper alloy grades. Elongation at break is 20% and the elastic modulus is 110 GPa (16 Msi).
Thermal6
ZCuAl10Fe3Mn2-Li is rated for continuous service to 300°C (572 °F). It conducts heat at 58 W/m·K (33.5 BTU/hr·ft·°F), worse than 63% of copper alloy grades. Thermal expansion is 16.2 µm/m·K (9 µin/in·°F).
Electrical3
ZCuAl10Fe3Mn2-Li conducts electricity at 13 % IACS, worse than 58% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (74/100), better than 88% of copper alloy grades.
Sustainability4
Producing a kilogram of ZCuAl10Fe3Mn2-Li takes about 55 MJ of energy and emits 3.6 kg of CO₂ — less than 72% of copper alloy grades. Typical recycled content is 45%.
Manufacturability7
ZCuAl10Fe3Mn2-Li's machinability is fair (38/100, better than 55% of copper alloy grades); weldability good (55/100); formability poor (18/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ZCuAl10Fe3Mn2-Li
Is ZCuAl10Fe3Mn2 easy to machine?
Moderate machinability, about 50 % of 1212: use sharp positive-rake carbide at low to moderate speed with heavy feed, chip-breaker geometry for the continuous chips, and ample emulsion coolant to prevent built-up edge.
Can ZCuAl10Fe3Mn2 be welded?
TIG/MIG welding and weld repair with ERCuAl-A2 filler are practical with 150–250 °C preheat, removal of the alumina film and interpass temperature control. Oxyacetylene welding is not recommended; local post-weld annealing reduces residual stress.
Can ZCuAl10Fe3Mn2 be formed, bent or molded?
Castings are not cold formed. Melt under a cover flux and use bottom-gated moulds to avoid re-oxidation of the aluminium and dross entrapment; provide adequate riser feeding and gradual wall-thickness transitions.
What surface finishes work on ZCuAl10Fe3Mn2?
Machines and polishes to a golden mirror finish. Electroplating is not usual; seawater parts are normally passivated or coated with antifouling paint. Cannot be anodized.
ZCuAl10Fe3Mn2 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 | 9 – 11 | 10 |
| Fe | 2 – 4 | 3 |
| Mn | 1 – 2 | 1.5 |
| Znimpurity limit | ≤ 0.5 | — |
| Siimpurity limit | ≤ 0.2 | — |
| Snimpurity limit | ≤ 0.2 | — |
| Pbimpurity limit | ≤ 0.1 | — |
| Cubalance; total impurities ≤ 1.0 % | balance | — |
ZCuAl10Fe3Mn2-Li — frequently asked
What is ZCuAl10Fe3Mn2-Li used for?
ZCuAl10Fe3Mn2-Li is typically used for heavy-duty gears, propellers, marine valves and structural castings. In short: stronger than plain Al-bronze; heat-treatable casting grade; heavy-duty gear bronze.
What is the yield strength of ZCuAl10Fe3Mn2-Li?
ZCuAl10Fe3Mn2-Li has a typical yield strength of 265 MPa (38.4 ksi) and a tensile strength of 620 MPa (89.9 ksi) — stronger than 55% of copper alloy grades. Strength varies by condition: see the 5 listed tempers.
Is ZCuAl10Fe3Mn2-Li easy to machine?
Not especially — machinability is rated fair (38/100, better than 55% of copper alloy grades). Moderate machinability, about 50 % of 1212: use sharp positive-rake carbide at low to moderate speed with heavy feed, chip-breaker geometry for the continuous chips, and ample emulsion coolant to prevent built-up edge.
Can ZCuAl10Fe3Mn2-Li be welded?
Yes — weldability is rated good (55/100). TIG/MIG welding and weld repair with ERCuAl-A2 filler are practical with 150–250 °C preheat, removal of the alumina film and interpass temperature control. Oxyacetylene welding is not recommended; local post-weld annealing reduces residual stress.
What surface finishes work on ZCuAl10Fe3Mn2-Li?
Machines and polishes to a golden mirror finish. Electroplating is not usual; seawater parts are normally passivated or coated with antifouling paint. Cannot be anodized.
Can ZCuAl10Fe3Mn2-Li be formed, bent or molded?
Castings are not cold formed. Melt under a cover flux and use bottom-gated moulds to avoid re-oxidation of the aluminium and dross entrapment; provide adequate riser feeding and gradual wall-thickness transitions.
What is the maximum service temperature of ZCuAl10Fe3Mn2-Li?
ZCuAl10Fe3Mn2-Li 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 ZCuAl10Fe3Mn2-S and ZCuAl10Fe3Mn2-HT?
S is the default condition — pick this most common as-cast state for one-off or small-batch heavy-duty worm wheels, valve bodies and pump casings; 560 MPa tensile, 220 MPa yield, 18% elongation and service to 300 °C. HT: choose when quenched from ~900 °C and tempered at ~650 °C for heavy-duty gears and die inserts needing 700 MPa tensile and 190 HB; elongation drops by about half, to 9%. Yield strength is 220 MPa in S versus 350 MPa in HT.
Sources
- ASTM B505/B505M — Continuous Cast Copper Alloys (C95400) — ASTM (2018)
- CDA Alloy Datasheet C95400 (aluminium bronze 9C) — Copper Development Association (2023)
- ASM Handbook Vol.2 — Properties of Copper and Copper Alloys — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion of Copper Alloys — 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.