Copper Alloy ZCuZn35Al2Mn2Fe1-J (Permanent (metal) mould cast)
Grade
Pick metal mould casting for volume production of small and medium parts: fast cooling and a fine structure give 510 MPa tensile and 115 HB, above sand cast, with 22 % elongation.
Values for the J condition
Other ZCuZn35Al2Mn2Fe1 tempers and conditions
ZCuZn35Al2Mn2Fe1 is listed in 4 conditions; see the grade overview at ZCuZn35Al2Mn2Fe1.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
SDefault Sand cast | Choose the general-purpose as-sand-cast state for medium and large worm gears, bearing sleeves and structural castings in one-off or small-batch production at 480 MPa tensile. | 195 | 480 | 25 | 105 HB | 21 % IACS |
JThis page Permanent (metal) mould cast | Pick metal mould casting for volume production of small and medium parts: fast cooling and a fine structure give 510 MPa tensile and 115 HB, above sand cast, with 22 % elongation. | 230 | 510 | 22 | 115 HB | 20.5 % IACS |
Continuous cast | Choose continuously cast bar and tube stock when a uniform, dense structure is to be machined directly into sleeves, nuts and guide parts at 515 MPa tensile and 22 % elongation. | 230 | 515 | 22 | 115 HB | 20.5 % IACS |
Centrifugal cast | Use centrifugal casting for sleeve, bearing shell and worm-gear blanks: the dense structure with few pores or inclusions reaches 520 MPa tensile, equal to or better than permanent mould. | 235 | 520 | 22 | 118 HB | 21 % IACS |
What is ZCuZn35Al2Mn2Fe1-J?
ZCuZn35Al2Mn2Fe1-J is ZCuZn35Al2Mn2Fe1 in the J grade — pick metal mould casting for volume production of small and medium parts: fast cooling and a fine structure give 510 MPa tensile and 115 HB, above sand cast, with 22 % elongation. ZCuZn35Al2Mn2Fe1-J has a yield strength of 230 MPa (33.4 ksi) and a tensile strength of 510 MPa (74 ksi) — stronger than 51% of copper alloy grades. Elongation at break is 22% and the elastic modulus is 102 GPa (14.8 Msi). ZCuZn35Al2Mn2Fe1-J has a density of 8.5 g/cm³ (0.307 lb/in³), lighter than 65% of copper alloy grades. It melts at 880°C (1,616 °F). S is the default condition FabDigit quotes; J is available on request or by drawing note.
Limitations
- Limited formability — 18/100, worse than 75% of copper alloy grades
ZCuZn35Al2Mn2Fe1-J properties
Typical room-temperature values for ZCuZn35Al2Mn2Fe1-J; 21 are specific to this condition. Other listed values are ZCuZn35Al2Mn2Fe1 reference data and may not represent this condition. Bars are the position among copper alloy grades.
Physical3
ZCuZn35Al2Mn2Fe1-J has a density of 8.5 g/cm³ (0.307 lb/in³), lighter than 65% of copper alloy grades. It melts at 880°C (1,616 °F).
Mechanical15
ZCuZn35Al2Mn2Fe1-J has a yield strength of 230 MPa (33.4 ksi) and a tensile strength of 510 MPa (74 ksi) — stronger than 51% of copper alloy grades. Elongation at break is 22% and the elastic modulus is 102 GPa (14.8 Msi).
Thermal6
ZCuZn35Al2Mn2Fe1-J is rated for continuous service to 200°C (392 °F). It conducts heat at 84 W/m·K (48.5 BTU/hr·ft·°F), better than 51% of copper alloy grades. Thermal expansion is 20.5 µm/m·K (11.4 µin/in·°F).
Electrical3
ZCuZn35Al2Mn2Fe1-J conducts electricity at 20.5 % IACS, better than 53% of copper alloy grades.
Chemical & Environmental3
Corrosion resistance is good (58/100), worse than 76% of copper alloy grades.
Sustainability4
Producing a kilogram of ZCuZn35Al2Mn2Fe1-J takes about 55 MJ of energy and emits 3.8 kg of CO₂ — less than 72% of copper alloy grades. Typical recycled content is 70%.
Manufacturability7
ZCuZn35Al2Mn2Fe1-J's machinability is poor (33/100, worse than 53% of copper alloy grades); weldability fair (35/100); formability poor (18/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ZCuZn35Al2Mn2Fe1-J
Is ZCuZn35Al2Mn2Fe1 easy to machine?
Machinability is about 30% of free-cutting brass, and the iron-rich hard phases wear cutting edges. Use carbide tooling with a large positive rake at moderate speed with ample coolant.
Can ZCuZn35Al2Mn2Fe1 be welded?
Repair welding is possible by GTAW/GMAW with aluminium-bronze or silicon-bronze filler. Preheat to 150-200 °C, control zinc evaporation and the aluminium oxide film, and cool slowly after welding to avoid cracking.
Can ZCuZn35Al2Mn2Fe1 be formed, bent or molded?
Casting alloy: pour at approximately 1000-1050 °C using bottom gating and steady mould filling, with enough feeders to prevent slag entrapment and shrinkage porosity. Keep wall-thickness transitions gradual.
What surface finishes work on ZCuZn35Al2Mn2Fe1?
Can be machined and polished to a mirror finish, nickel- or chrome-plated, or chemically passivated. Not anodizable; in seawater service combine with sacrificial anodes to limit dezincification.
ZCuZn35Al2Mn2Fe1 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 |
|---|---|---|
| Cu | 57 – 65 | 60 |
| Alstrengthens and improves wear resistance | 0.5 – 2.5 | 1.5 |
| Mn | 1 – 3 | 2 |
| Ferefines grains; forms hard Fe-rich phase | 0.5 – 2 | 1 |
| Pbimpurity limit | ≤ 0.5 | — |
| Snimpurity limit | ≤ 1 | — |
| Niimpurity / permitted residual | ≤ 3 | — |
| Siimpurity limit | ≤ 0.1 | — |
| Znbalance, about 35% | balance | — |
ZCuZn35Al2Mn2Fe1-J — frequently asked
What is ZCuZn35Al2Mn2Fe1-J used for?
ZCuZn35Al2Mn2Fe1-J is typically used for gears, bushings and worm wheels. In short: high-strength complex brass; good wear resistance; moderate machinability only.
What is the yield strength of ZCuZn35Al2Mn2Fe1-J?
ZCuZn35Al2Mn2Fe1-J has a typical yield strength of 230 MPa (33.4 ksi) and a tensile strength of 510 MPa (74 ksi) — stronger than 51% of copper alloy grades. Strength varies by condition: see the 4 listed tempers.
Is ZCuZn35Al2Mn2Fe1-J easy to machine?
Not especially — machinability is rated poor (33/100, worse than 53% of copper alloy grades). Machinability is about 30% of free-cutting brass, and the iron-rich hard phases wear cutting edges. Use carbide tooling with a large positive rake at moderate speed with ample coolant.
Can ZCuZn35Al2Mn2Fe1-J be welded?
With care — weldability is rated fair (35/100). Repair welding is possible by GTAW/GMAW with aluminium-bronze or silicon-bronze filler. Preheat to 150-200 °C, control zinc evaporation and the aluminium oxide film, and cool slowly after welding to avoid cracking.
What surface finishes work on ZCuZn35Al2Mn2Fe1-J?
Can be machined and polished to a mirror finish, nickel- or chrome-plated, or chemically passivated. Not anodizable; in seawater service combine with sacrificial anodes to limit dezincification.
Can ZCuZn35Al2Mn2Fe1-J be formed, bent or molded?
Casting alloy: pour at approximately 1000-1050 °C using bottom gating and steady mould filling, with enough feeders to prevent slag entrapment and shrinkage porosity. Keep wall-thickness transitions gradual.
What is the maximum service temperature of ZCuZn35Al2Mn2Fe1-J?
ZCuZn35Al2Mn2Fe1-J is rated for continuous use to about 200°C (392 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between ZCuZn35Al2Mn2Fe1-S and ZCuZn35Al2Mn2Fe1-Li?
S is the default condition — choose the general-purpose as-sand-cast state for medium and large worm gears, bearing sleeves and structural castings in one-off or small-batch production at 480 MPa tensile. Li: use centrifugal casting for sleeve, bearing shell and worm-gear blanks: the dense structure with few pores or inclusions reaches 520 MPa tensile, equal to or better than permanent mould. Yield strength is 195 MPa in S versus 235 MPa in Li.
Sources
- EN 1982 Copper and copper alloys — Ingots and castings — CEN (2017)
- ASM Handbook Vol.2: Properties and Selection — Nonferrous Alloys — ASM International (1990)
- CDA Alloy Datasheet C86500 (manganese/high-strength brass) — Copper Development Association (2020)
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.