Aluminum Casting

An aluminum casting using the finest aluminum alloys is suitable for a wide range of products including multiple components within the automotive, heavy truck, and defense industries. Aluminum castings are favored for being lightweight, strong, and durable. Let Morel Industries, Inc. provide you with aluminum casting solutions.

Molding Processes

  • No Bake

  • Semi-Permanent Mold

Typical Uses

Typical uses for aluminum castings include engine parts, components, and casings for the automotive, military, and commercial industries. These include brackets, electronic housings, gearbox casings, pumps, impellers, and many other applications like:

  • Providing high strength with lightweight applications

  • Casting aluminum alloys with strengths into the mild steel properties

  • Prototyping thru production runs

  • Casting in all three molding processes—permanent mold, and no-bake

  • Accepting CAD computer files

  • Engineering assistance available

  • Finishing options like heat treat, machining, impregnation, paint/powder coat, chem treat, and assemblies

Typical Aluminum Alloys

  • 206/A206/B206

  • 319

  • 356/A356

  • A357

  • 535

  • 713

Brass Bronze Casting

Casts in our no-bake processes and brass/bronze castings are suitable for a wide range of products including multiple components within the navy, marine and general manufacturing industries. Favored for their high strength and durability, these brass/bronze alloy castings are a specialty of Morel Industries, Inc., the leading Northwest foundry.

Typical Uses

Typical uses include components for the automotive and marine industries such as electronic housings, pumps, bearings, marine products, Navy components, wear plates, survey markers, artistic/decorative products, and many other applications.

Benefits

  • Gives high strength & superior wear properties

  • Proves excellent corrosion resistance

  • Offers excellent heat transfer properties

  • Creates prototype thru production runs

  • Performs green sand & no-bake molding processes

  • Accepts CAD computer files

  • Provides engineering assistance

  • Offers finishing options like machining, chem treat, and assemblies

Typical Brass/Bronze Alloys

  • C86500

  • C87500

  • C87610

  • C92200

  • C86200

  • C86300

  • C95400

  • C95500

  • C958000

Iron Casting

Gray iron alloy castings in the no-bake mold processes are suitable for a wide range of products including multiple components within the automotive, military, commercial, and transportation industries. Favored for their resistance to cracking and high-temperature properties, gray iron castings are another specialty of Morel Industries, Inc., the Northwest’s leading foundry

 

Typical Uses

Iron casting is ideal for engine components, electronic housings, transportation, artistic and decorative products, and many other applications.

Benefits

  • Prototype thru production runs

  • No-bake molding processes

  • Provides engineering assistance

  • Offers finish options like machining, chem treat, annealing, and assemblies

Gray Iron Alloys

  • Grade 30

  • Grade 40

Morel Industries

Fish pump May 2025 2

Marine Products

Morel Industries, Inc is leading the way when it comes to producing high-quality marine cast products. Such castings need to have high corrosion-resistant properties to repel the effects of saltwater and the electrolysis process. Propeller nuts, zinc nuts and collars, boat struts, and crab cover anodes are all readily available at our foundry in the Pacific Northwest.

Our Marine Products Include:

Boat Struts

Boat Struts are casts in similar fashion to propeller nuts, using C86500 "70" manganese bronze, a high strength yellow brass with excellent corrosion-resistant properties. They are the ideal solution to resist the corrosive properties of the electrolysis process when attaching your boat's propeller shaft.

Propeller Nuts

One of the most essential elements of the marine cast industry is the protection of a vessel's components that are subject to corrosion which are typically the rudder, propeller shaft, propeller shaft struts, and prop nuts. At Morel Industries, Inc., we have decades of experience in supplying high-quality propeller nuts of all sizes to the industry.

They are also cast in C86500 manganese bronze for maximum corrosion resistance. C86500 manganese bronze offers the best quality product in both castability and corrosion resistance which results in a cost-effective product.

Propeller Nut Sizes

Size is in Inches

Prop Nut Number A B C D
6401 2.75" 2.375" 2.0" 1.75"
6402 3.25" 2.375" 2.5" 2.125"
6403 3.75" 2.625" 2.75" 2.437"
6404 3.875" 2.875" 3.0"" 2.625"
6405 4.25" 2.75" 3.125" 2.75"
6406 5.125" 3.25" 3.875" 3.375"
6407 5.5" 4.0" 4.0" 3.5"
6408 6.5" 4.0" 4.625" 4.0"
6409 7.0" 4.875" 5.25" 4.625"
6409A 8.0" 5.75" 6.375" 5.375"
6410 10.25" 6.125" 6.75" 6.0"
6411 11.75" 8.0" 8.125" 7.125"
Prop Nut Number
6401
6402
6403
6404
6405
6406
6407
6408
6409
6409A
6410
6411
 
A
2.75"
3.25"
3.75"
3.875"
4.25"
5.125"
5.5"
6.5"
7.0"
8.0"
10.25"
11.75"
 
B
2.375"
2.375"
2.625"
2.875"
2.75"
3.25"
4.0"
4.0"
4.875"
5.75"
6.125"
8.0"
 
C
2.0"
2.5"
2.75"
3.0""
3.125"
3.875"
4.0"
4.625"
5.25"
6.375"
6.75"
8.125"
 
D
1.75"
2.125"
2.437"
2.625"
2.75"
3.375"
3.5"
4.0"
4.625"
5.375"
6.0"
7.125"
image002

Zinc Nuts

The use of high-grade zinc nuts and collars on or near the underwater fittings of your boat or watercraft absorbs the corrosive actions of electrolysis which normally attacks brass or bronze fittings. The fitting of zinc nuts and collars to your boat's fittings will greatly enhance their working life and provide dual protection of safety and economy.

Zinc nut showing internal propeller point for snug fitting.

Zinc nut offered to propeller nut in operational mode.

Proper size is important. Zinc nuts are designed to fit snugly against the points of standard propeller nuts. For best results, compare the point-to-point diameter of the propeller nut with the inside diameter of the zinc nut. In remote cases, some machining to a smaller size may be desired for a closer fit of the zinc nut.

Screenshot 2025-10-06 at 3.10.28 PM

Learn More About Our Casting Solutions

If you are interested in our wide variety of casting solutions and products, contact Morel Industries, Inc. today. We look forward to serving you.