Copper Alloy ZCuAl10Fe3Mn2-La
Finish state
UNS C95400
La = 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.
Values for the La 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 |
LaThis page 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 |
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-La?
ZCuAl10Fe3Mn2-La is ZCuAl10Fe3Mn2 supplied in the La condition — 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. ZCuAl10Fe3Mn2-La has a yield strength of 255 MPa (37 ksi) and a tensile strength of 600 MPa (87 ksi) — stronger than 55% of copper alloy grades. Elongation at break is 20% and the elastic modulus is 112 GPa (16.2 Msi). ZCuAl10Fe3Mn2-La 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; 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 — 73/100, better than 87% of copper alloy grades
- High service temperature — 300°C (572 °F), better than 85% of copper alloy grades
ZCuAl10Fe3Mn2-La properties
Typical room-temperature values for ZCuAl10Fe3Mn2-La; 22 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-La 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-La has a yield strength of 255 MPa (37 ksi) and a tensile strength of 600 MPa (87 ksi) — stronger than 55% of copper alloy grades. Elongation at break is 20% and the elastic modulus is 112 GPa (16.2 Msi).
Thermal6
ZCuAl10Fe3Mn2-La 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-La conducts electricity at 13 % IACS, worse than 58% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is very good (73/100), better than 87% of copper alloy grades.
Sustainability4
Producing a kilogram of ZCuAl10Fe3Mn2-La 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-La's machinability is fair (42/100, better than 59% of copper alloy grades); weldability good (55/100); formability poor (20/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ZCuAl10Fe3Mn2-La
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-La — frequently asked
What is ZCuAl10Fe3Mn2-La used for?
ZCuAl10Fe3Mn2-La 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-La?
ZCuAl10Fe3Mn2-La has a typical yield strength of 255 MPa (37 ksi) and a tensile strength of 600 MPa (87 ksi) — stronger than 55% of copper alloy grades. Strength varies by condition: see the 5 listed tempers.
Is ZCuAl10Fe3Mn2-La easy to machine?
Not especially — machinability is rated fair (42/100, better than 59% 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-La 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-La?
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-La 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-La?
ZCuAl10Fe3Mn2-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 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.