Waukesha Metal 3 (WM3)
With more than 200 proprietary alloys in our portfolio, we know what it takes to engineer materials that perform in our customers’ most challenging applications. That’s why we engineered Waukesha Metal 3 to deliver operational benefits that set it apart from its Ni-based counterparts. This copper-based alloy resists stress corrosion cracking, crevice corrosion and galling – critical features across a range of applications, including food processing and saltwater exposure.
What is Waukesha Metal 3?
Food-grade, copper-based Waukesha Metal 3 is the ideal choice for equipment that undergoes frequent cleaning and sterilization. This material is often referred to as “dairy metal” since it doesn’t impart an “off” taste in dairy products, and can withstand the corrosive effects of lactic acid. It also doesn’t require lubrication, so it won’t seize in high-friction environments or in areas that come in contact with stainless steel or Inconel®.
Did you know? In addition to being a top choice for food-processing equipment, WM3’s anti-corrosion properties make it the preferred alloy for seawater and marine applications.
Primary Characteristics of WM3
Excellent Corrosion Resistance
Parts made from WM3 offer reliable corrosion resistance in seawater and marine environments where exposure to moisture, salt, and corrosive elements is a concern. Its copper-based formulation helps resist general corrosion in these conditions, making it well-suited for marine equipment and components that require consistent performance in saltwater applications.
Anti-Galling Performance
WM3 prevents material transfer and wear in metal-on-metal applications. It’s safe for use in applications that come in contact with stainless steel, Inconel®, Monel® and chromium-plated components.
High Thermal Conductivity
WM3 offers higher thermal conductivity compared to many other alloys in the Waukesha Metals portfolio, making it a strong choice for applications where efficient heat transfer is critical. Its copper-based composition enables rapid heat dissipation, supporting consistent thermal performance in components such as heat exchangers and other systems where temperature control and reliability are essential.
Applications of WM3
WM3 holds up to frequent cleaning and sterilization and is wear-resistant without lubrication. It also won’t gall when it comes in contact with stainless steel or other industrial-grade metals. It’s used across a range of industries, including:
- Seawater Equipment
- Food Processing Equipment
- Pharmaceutical Processing Pumps
- Gears, Bushings and Bearings
- Quick-Snap Couplings, Transfer Car Nuts/Bolts, Pistons
Technical Specifications
- Material Type: Copper-based alloy
- Corrosion Resistance: Excellent
- Galling Resistance: High
- Machinability: Readily machinable; coolant optional
Machining & Fabrication
- Coolant optional during machining
- Capable of being machined to close tolerances
- Can be cast or produced to near net shape upon request
Castability
- Ideal for custom-shaped components in anti-galling applications
- Cast with precision and consistency at Waukesha Foundry
// Waukesha Metal 3
Quality Assurance of WM
Our 100-year history lays the foundation for our commitment to quality and customer satisfaction. We take the time to assure we meet the certifications and compliance standards needed to deliver our alloys safely and responsibly:
Certifications:
- ISO 9001:2015 by TÜV Rheinland
- ITAR Registered
- ASME IX Certified Welders
Compliance:
- RoHS
- REACH
- Conflict Minerals
FAQs
What industries use WM3?
As a food-grade alloy that can be used at both low and high temperatures, WM3 is used throughout food, beverage and dairy processing equipment. Its high strength and corrosion-resistant properties also make it a top choice in seawater and desalination applications that often involve high-volume production demands.
How does WM3 compare to nickel-based alloys like WM88?
While both alloys offer resistance to wear in metal-to-metal contact, WM88 is the preferred choice for demanding anti-galling applications. WM3 is typically selected for applications where corrosion resistance, thermal conductivity, and material compatibility are primary considerations, rather than maximum anti-galling performance.
Do you offer custom bar lengths or castings in WM3?
Absolutely. In fact, you can get any Waukesha Metal in the length or casting needed for your application. It’s part of our commitment to helping our customers get the right materials for their production parameters – and where needed, our tooling expertise ensures components are ready for precision performance.
Does WM3 resist galling against stainless steel or Inconel®?
Yes. Our WM3 alloy offers great anti-galling properties for clean processing.
Can I request material testing or performance data for WM3?
Our team of experts will work alongside your engineers to get you everything you need to maximize WM3 performance in your application.