Chemical Composition (%)
| Cu | 58.0~63.0 |
|---|---|
| Al | 1.5~3.0 |
| Mn | 1.0~3.0 |
| Fe | 0.5~2.0 |
| Zn | Balance |
Mechanical & Physical Properties
| Tensile strength | ≥450 MPa (sand cast) / ≥475 MPa (permanent mould) |
|---|---|
| Elongation | ≥18% (sand cast) / ≥20% (permanent mould) |
| Hardness | ≈100 HBW |
| Density | ≈8.3 g/cm³ |
Typical Applications
Grade Overview
ZCuZn35Al2Mn2Fe1 is a complex aluminium brass with 58.0-63.0% copper, 1.5-3.0% aluminium, 1.0-3.0% manganese, 0.5-2.0% iron and zinc as the balance; formerly designated ZHAl59-1-1. The combined additions give a fine-grained structure, tensile strength of at least 450 MPa in sand castings and excellent resistance to seawater and fresh water. It is a standard choice for marine fittings, pump and valve castings and medium-load bushings.
Selecting ZCuZn35Al2Mn2Fe1
Choose ZCuZn35Al2Mn2Fe1 for seawater and fresh-water pipe fittings, pump and valve bodies, marine hardware and general machinery structures. It offers a good balance of strength, corrosion resistance and castability at lower cost than a nickel-aluminium bronze. For higher strength and wear resistance, ZCuZn40Mn3Fe1 or an aluminium bronze is stronger; for water corrosion resistance with lower strength, ZCuZn16Si4 is adequate.
Working with ZCuZn35Al2Mn2Fe1
Melt under a clean cover and control aluminium and iron additions, which strongly affect structure and properties. The alloy casts well in sand and permanent moulds; avoid excessive superheat to limit zinc loss. Machining is good, and no heat treatment is required. Pressure-test critical castings before final machining.
Frequently asked questions about ZCuZn35Al2Mn2Fe1
What was the old designation?
ZHAl59-1-1, the previous Chinese designation for this 35-2-2-1 aluminium brass.
Is it suitable for seawater?
Yes. The aluminium, manganese and iron additions give good resistance to seawater and make it a common marine fitting alloy.
Does it contain lead?
No lead is specified in this grade, which makes it suitable where lead-free construction is required.
Data compiled from current standards; for selection reference only. Ordering is subject to the standard and the mill certificate. Data source: Shenyang Yuheng Metal Manufacturing Co., Ltd. — yuhengmetal.com.
Related cast copper alloy grades
ZCuZn40Mn3Fe1 · ZCuZn38Mn2Pb2 · ZCuZn25Al6Fe3Mn3 | All 52 grades in the library