Shop Cast Nylon by shape
Select a form factor to view real-time inventory, pricing, and custom cut-to-size options.
Tough. Wear Resistant. Load Bearing.
Cast nylon offers high strength, excellent wear resistance, and low friction for load-bearing components in industrial and mechanical applications.
Select a form factor to view real-time inventory, pricing, and custom cut-to-size options.

| Short Description | Color | Diameter | Length | Stock | Price | Add to quote |
|---|---|---|---|---|---|---|
| Cast Nylon - 2.000" x 39 Grey Rod | Grey | 2.000″ | 39″ | In stock93 | $32.96per rod | |
| Cast Nylon - 2.000" x 39 Natural Rod | Natural | 2.000″ | 39″ | In stock30 | $32.96per rod | |
| Cast Nylon - 2.250" x 39 Grey Rod | Grey | 2.250″ | 39″ | In stock67 | $41.72per rod | |
| Cast Nylon - 2.250" x 39 Natural Rod | Natural | 2.250″ | 39″ | In stock80 | $41.72per rod | |
| Cast Nylon - 2.500" x 39 Grey Rod | Grey | 2.500″ | 39″ | In stock28 | $51.48per rod | |
| Cast Nylon - 2.500" x 39 Natural Rod | Natural | 2.500″ | 39″ | In stock33 | $51.48per rod | |
| Cast Nylon - 2.750" x 39 Black Rod | Black | 2.750″ | 39″ | In stock20 | $62.30per rod | |
| Cast Nylon - 2.750" x 39 Grey Rod | Grey | 2.750″ | 39″ | In stock37 | $62.30per rod | |
| Cast Nylon - 2.750" x 39 Natural Rod | Natural | 2.750″ | 39″ | In stock30 | $62.30per rod | |
| Cast Nylon - 3.000" x 39 Grey Rod | Grey | 3.000″ | 39″ | In stock28 | $74.14per rod |
Material Overview
Cast nylon sheet and rod is an engineering thermoplastic produced by a casting process that yields higher crystallinity than extruded nylon — resulting in superior load-bearing capability, outstanding wear resistance, and low friction across demanding mechanical environments. Ready Plastics stocks cast nylon in sheet, rod, and custom-cut forms for direct use in component fabrication.
The casting process distinguishes this family from extruded grades. Greater molecular alignment during solidification produces a denser, harder material with enhanced abrasion resistance, making cast nylon the preferred choice for heavy-duty bearings, wear pads, rollers, and gears that must handle continuous motion and load. The material is also lightweight relative to comparable metals, enabling straightforward metal-replacement without sacrificing performance.
Machinability and fabrication. Cast nylon machines cleanly on conventional shop equipment — drilling, turning, milling, and sawing all produce tight tolerances with minimal tool wear. Low friction and self-lubricating properties mean finished components often operate without added lubrication, reducing maintenance overhead in automated and mechanical systems.
Grade selection. Ready Plastics offers Cast Nylon 6 (PA 6) as the core cast grade, providing 12,300 psi tensile strength, 15,000 psi compressive stress, and a continuous service temperature up to 220°F. For extruded nylon options across the broader polyamide family, see the nylon materials overview covering PA6, PA66, PA12, PA612, and PPA grades.
Frequently Asked Questions
Cast nylon is a polyamide engineering plastic produced by pouring liquid monomer into a mold where it polymerizes in place, rather than being extruded from pellets. The casting process results in higher crystallinity and improved load-bearing capability compared to extruded nylon, making it well suited for gears, bushings, wear pads, and rollers in industrial applications.
Cast nylon is polymerized directly in a mold, yielding higher crystallinity, greater load-bearing strength, and better wear resistance than extruded nylon. Extruded nylon — such as PA6, PA66, or PA12 — is processed from pellets and offers tighter dimensional control in thin sections and a wider range of modified grades. Cast nylon is preferred for heavy-duty mechanical parts; extruded grades suit precision components and lighter-duty applications.
Ready Plastics stocks cast nylon in sheet and rod form. Contact Ready Plastics for current dimensions, thickness ranges, and diameter availability, or request a custom cut-to-size quote.
Yes. Cast nylon machines readily on standard shop equipment using conventional cutting tools. It drills, turns, mills, and saws cleanly, holding tight tolerances for precision components such as bushings, wear blocks, and structural parts.
Cast nylon is typically based on polyamide 6 (PA6) chemistry, but the production method — casting rather than extrusion — creates a different microstructure. Ready Plastics' cast nylon grade is Cast Nylon 6 (PA 6), offering higher crystallinity and improved mechanical performance compared to extruded PA6 sheet and rod.
Get a quote on cut-to-size sheets and rods, request a full data sheet, or talk to a plastics engineer. We answer in under two hours, M–F 8am–6pm ET.