Waukesha Metal 126 (WM126)
Tight-tolerance precision parts such as gears, bushings and bearings need to stand up to rubbing and friction without wearing or galling. Waukesha Metal 126 (WM126) is a proprietary copper-based, anti-galling alloy that’s a proven performer in some of the harshest environments, including meat processing plants and other applications where part lubrication isn’t feasible. With 100+ years of metallurgical expertise and quality-driven manufacturing, Waukesha Foundry can cast the WM126 parts that manufacturers need to survive the high wear your equipment experiences.
What is Waukesha Metal 126?
WM126 is a copper-based, anti-galling castable alloy engineered to prevent seizing and surface damage across a range of applications and anywhere lubrication is not possible, including:
- Meat Processing Equipment
- Power Transmission Components
- Industrial Machinery
- Food & Sanitary Processing Equipment
From a design standpoint, since the material is copper-based, it offers a balanced hardness that supports smooth operation in moving parts and close-clearance components.
Primary Characteristics
Anti-Galling Performance
Resists galling, seizing and material transfer during metal-to-metal contact, making it ideal for applications where lubricants cannot be used.
Strength and Durability
Offers good mechanical strength and maintains dimensional stability under repeated loading for extended service life in high-wear environments.
Corrosion Resistance
Withstands cleaning chemicals, moisture and food-related acids in washdown-heavy and hygiene-critical applications.
Temperature Capability
Performs reliably at both low and high operating temperatures for use in applications with temperature cycling.
Applications of Waukesha Metal 126
WM126 is ideal for any component that that requires wear-resistance, smooth operation and corrosion-resistance, including
- Form plates
- Plungers
- Vane pumps
- Gears
- Bushings
- Bearings
Need a custom part? Our experience and capabilities means we can custom cast components, including ones with complex geometries requiring expert mold builders.
Technical Specifications
Alloy Classification
- Alloy Type: Copper-based anti-galling alloy
- Alloy Designation: Waukesha Metal 126 (WM126)
- Category: Anti-Galling Alloys – Copper Base
- Base Metal: Copper (Cu – Balance)
- Note: WM126 is not a nickel-based alloy.
Nominal Chemical Composition
WM126 is a copper-based alloy engineered to balance strength, corrosion-resistance and galling prevention.
- Copper (Cu): Balance
- Tin (Sn): 3.50%
- Chromium (Cr): 20.00%
- Aluminum (Al): 1.00%
- Zinc (Zn): 20.00%
- Manganese (Mn): 20.00%
Minimum Mechanical Properties
- Tensile Strength: 50 ksi
- Yield Strength: 39 ksi
- Elongation: 4.0%
- Average Brinell Hardness: 150 BHN
Wear, Galling & Service Performance
WM126 is engineered to resist galling and seizing in metal-to-metal contact. When mated with stainless steel and other alloys, the copper-based composition helps reduce material transfer.
Machinability & Fabrication
WM126 is readily machinable for precision components. We can work with you to recommend the best machining practices based on component geometry and your finishing needs.
Manufacturing & Value-Added Capabilities
We can make your WM126 part a reality using state-of-the-art modeling, precision measuring methods, casting, machining and assembly. We’re your single-source supplier for value-added operations such as coating, polishing, pickle and passivation, so even challenging orders are delivered within the quoted lead time and on budget.
Why Choose Waukesha Foundry for WM126?
With over a century of casting and metallurgical experience, Waukesha Foundry knows how to get things done right and deliver castings in alloys that perform as promised. Backed by global sourcing and supply chain expertise, our selection of anti-galling alloys gives you the options you need to match your application parameters, timelines and budget. From material sourcing through quality assurance and final production, we cast with confidence. Our metallurgical expertise, combined with our extensive manufacturing capabilities, allow us to produce castings ranging from 1 pound to over 6,000 pounds.
FAQs
What is Waukesha Metal 126 used for?
Our customers primarily use WM126 for bushings and bearings in food processing applications, although WM126’s anti-galling properties make it versatile for other high-use applications. We can help you decide on the best alloy for your needs.
How is WM126 different from nickel-based anti-galling alloys?
Waukesha Metal 126 is copper based. It has similar anti-galling properties to nickel-based alloys like WM88, however it does not offer the same corrosion-resistant properties as WM88.
Can WM126 be used for gears, bushings, and bearings?
Yes, and these applications are some of the most popular for WM126.
Are certifications included with WM126 orders?
Chemical certifications are included with each order. If you need additional information, let us know.
How do I order WM126 castings from Waukesha Foundry?
Reach out to us online, via email or give us a call at 262-549-8452.