Anti Galling Alloys

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Waukesha Foundry has earned a reputation as an innovator in the production of anti-galling cast components for food processing equipment.

When your casting project demands the tightest tolerances and best surface finish, Waukesha’s proven Consumable Pattern Ceramic Casting process is the solution. Our castings are recognized throughout the industry as being the preferred choice for mid to large size castings featuring complex geometries and/or intricate designs with varying section sizes.

Waukesha Metal 88

Waukesha Metal 88, also known as “WM88”, “Alloy 88”, ASTM A494 CY5SnBiM, and UNS N26055 is an alloy invented and previously patented by Waukesha Foundry in 1954 (US5242657A). Its main purpose is to prevent galling during metal-on-metal contact while being resistant to corrosion, especially in food processing industries where the use of liquid lubricants is prohibited. It is approved by the FDA (and 3-A sanitary standards) for contact with food and works well in conjunction with stainless steels, Inconel, Monel, and chromium plated parts where daily cleaning or sterilization is needed.

Waukesha Metal 126

We developed WM126 as a copper base, anti-galling material for use in meat processing plants for form plates, plungers and vane pumps. WM126 is also well suited for gears, bushings and bearings. This alloy offers good strength and corrosion resistance and can be used at extreme temperatures. Note: WM126 is not an Ni-base alloy.

Waukesha Metal 23BI

WM23BI is an anti-galling alloy with higher yield strength and hardness than our standard WM88. These characteristics help maintain a sharper edge on blades and similar components. It offers good corrosion resistance and can be used at high temperatures. WM23BI is readily castable and machinable.

Waukesha Metal 3

WM3 is specially formulated for excellent strength and corrosion resistance. This food-grade alloy has a copper base and can be used at extreme temperatures. It is well suited for homogenizers.

54C Alloy

This high-temperature, high-strength alloy has good corrosion resistance and can be used at extreme temperatures. The alloy’s excellent self-lubricating qualities, due to the inclusion of silver, make it ideal for valve guides in aircraft engines that must operate in extremely hot temperatures. The 54C alloy affords exceptional wear resistance.

Cast Invar®

Invar® 36, the typical Invar material of choice, is a 36-percent, nickel-iron alloy, which has the lowest thermal expansion among all metals and alloys in the range from room temperature up to approximately 350° F. The alloy is ductile and easily weldable with machinability similar to stainless steel.

With a very low CTE (coefficient of thermal expansion), Invar plays an important role in elevated-temperature cured, carbon fiber reinforced composite tooling. These tooling materials must provide temperature resistance, very low CTE to match the composite cure temperature, vacuum integrity, thermal conductivity and machinability. The compatibility of the CTE of the Invar mold and the composite parts avoids distortion, induced stress and warpage. All this adds up to a material that meets the dimensional tolerance and production requirements for composite components.

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Customer satisfaction is important to us. We work closely with our customers to engineer the right process for their application. To find out what Waukesha Foundry can do for you, contact us today.