Products
Aluminum Bronze Alloys
Catering to a broad audience of industries and applications, our copper aluminum alloys provide excellent wear resistance, corrosion resistance, and protect against embrittlement.
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PIAD Alloy Reference Chart
Mechanical & Physical Properties · Permanent Mold Casting Alloys
| Alloy No. | Composition | Yield Str. (ksi) |
Tensile Str. (ksi) |
Elongation in 2" (%) |
Brinell Hardness |
Modulus (psi ×10⁶) |
Elec. Cond. (% IACS) |
CDA / Equiv. Standards |
Notes & Applications |
|---|---|---|---|---|---|---|---|---|---|
| Group A — Aluminum Bronze 10 alloys | |||||||||
| A 010 | Cu-Al | 19–22 | 62–72 | 65–53 | 75–95 | 15.0 | 15–16 | C92500 (no Fe) | Good corrosion resistance; excellent for cryogenic applications (no embrittlement to −200°C). Chemical industry use; nonmagnetic. |
| A 011 | Cu-Al-Fe | 27–30 | 75–85 | 35–30 | 95–110 | 16.0 | 10–12 | C95300 | Good resistance to H₂SO₄ and H₃PO₄; corrosion resistant in cold salt water and salt water atmosphere. Weldable. |
| A 012 | Cu-Al-Fe | 34–44 | 85–95 | 35–25 | 135–155* | 16.0 | 10–12 | C95200 | Good corrosion resistance in salt water; weldable, heat treatable; non-sparking. Valve and pump industry components. |
| A 020 | Cu-Al-Fe-Ni | 58–68 | 95–108 | 10–6 | 190–210* | 17.5 | 8.0 max | C95500 | High-strength nickel-aluminum bronze; excellent corrosion resistance in atmosphere, hot/cold salt water, and many chemicals. Resistant to cavitation and erosion. |
| A 021 | Cu-Al-Fe-Ni | 45–51 | 88–95 | 20–14 | 150–170* | 17.2 | 8.0 max | C95400/95220 | Similar to A020 with reduced mechanical properties but increased ductility. Weldable; heat treatable. Where strength and corrosion resistance are required. |
| A 022 | Cu-Al-Fe-Ni | 35–42 | 83–91 | 30–20 | 125–150* | 16.9 | 8.0 max | No equivalent | Excellent corrosion resistance; similar to A011 but with improved mechanical properties. Weldable and heat treatable. |
| A 023 | Cu-Al-Fe-Ni | 63–78 | 98–115 | 7–5 | 210–230* | 18.0 | 8.0 max | No equivalent | High-strength nickel-aluminum bronze; excellent wear under high loads. Wear parts, chuck drivers, heavy loaded spindle nuts. Weldable and heat treatable. |
| A 0201 | Cu-Al-Fe-Ni | 63–75 | 98–115 | 6–4 | 210–230* | 18.0 | 8.0 max | C95520 | High-strength nickel-aluminum bronze for high mechanical loads; similar to A020 with increased mechanical properties. |
| A 0202 | Cu-Al-Fe-Ni | 60–70 | 98–110 | 10–5 | 195–215* | 17.5 | 8.0 max | C95520 | Similar to A020; developed for shift forks in transmissions for heavy trucks and agricultural equipment. |
| A 030 | Cu-Al-Mn-Ni | 28–32 | 70–75 | 40–35 | 100–110 | 16.8 | 8.0 max | No equivalent | Aluminum-nickel-manganese bronze; good corrosion resistance with very low magnetic permeability. Suited for instruments requiring low magnetic properties. |
| Group AL — Aluminum 3 alloys | |||||||||
| 356T6 | Al-Si-Mg | 25–30 | 30–38 | 3–10 | 70–95 | 10–10.5 | 35 max | ASTM B108/B108M | Aluminum 356 in T6 condition. Excellent castability and fluidity, good corrosion resistance, high strength-to-weight ratio. Automotive structural parts, aerospace components, pumps, housings, marine hardware. |
| 430B | Al-Si-Cu-Ni | 18–25 | 28–35 | 1–3 | 85–110 | 10 min | 18–25 | ASTM B108, UNS A04300 | High-strength casting alloy; excellent wear resistance, good corrosion resistance for marine/industrial use. Heavy-duty bearings, gears, power transmission, hydraulic/heavy equipment parts. |
| AL319 | Al-Si-Cu | 10–28 | 30–36 | 1–5 | 75–95 | 10 min | 20–25 | ASTM B108 | Lightweight casting alloy with good wear resistance and moderate strength. Wear bearings, automotive components, pump housings, valve components, sleeve bearings. |
| Group ZA — Zinc-Aluminum Alloys 1 alloy | |||||||||
| ZA73 | Zn-Al | 10–17.5 | 17–26 | 5–15 | 50–80 | 45 min | 10–20 | ASTM B240 / ASTM B86 | High strength-to-weight ratio, good castability, excellent wear and bearing properties, good heat resistance, low density. Heavy-duty bearings, automotive lightweight components, hydraulic/industrial components. |
Aluminum Bronze Alloys: Featured Information
Background
Chill mold cast parts made from copper aluminum alloys are wear-resistant, corrosion-resistant and resist embrittlement.
Copper aluminum alloys, better known in the industry as aluminum bronze alloys, are the choice alloys for designers when replacing steel weld fabrications with a one-piece PIAD chill casting.
Copper aluminum alloys with iron, nickel and manganese additions have mechanical properties which exceed the mechanical properties of carbon steel and medium alloyed steel. Besides these excellent mechanical properties, PIAD chill cast aluminum bronzes exhibit many additional physical properties which provide excellent choices for design engineers. These alloys can be used in many different industrial environments.
Important properties of aluminum bronze alloys
- Excellent mechanical properties
- No embrittlement in cryogenic applications (-328 F)
- Alloys can be welded to each other
- Alloys can be welded to steel
- Excellent corrosion resistance in aqueous solutions especially in sea water
- Excellent wear properties in combination with steel
- High compression strength
- Binary aluminum bronzes are non-magnetic
Typical Applications
- Pump Industry
- Valve Industry
- Transportation Industry
- Material Handling Industry
- Marine Industry
- Mining Industry
- Packaging Machinery Industry
- Firearm Industry
- Medical Industry
- Outdoor Lawn Equipment
- Commercial Hardware
Browse Our Past Work
These images display just a small portion of our work with copper-based alloys. Ranging from circuit breaker blade supports to switching device contact arms, these parts display our capabilities in the copper-based permanent mold industry.
Get in touch today
Talk with our professionals to learn how PIAD can provide you with aluminum bronze alloy permanent mold casting solutions.