Premium Stainless Steel Round Bars for Various Applications

Custom Stainless Steel Round Bars in 303, 304, 316 & More

Action Stainless supplies stainless steel round bar in a wide range of grades and sizes to support structural, machining, and fabrication applications. Round bar is a key product across construction, food processing, marine, and energy sectors, valued for its clean finish, strength, and versatility.


We offer round bar in 303, 304/304L, 316/316L, 17-4PH, and other grades. Bar is available in cold drawn, annealed, turned, or ground finishes. Standard lengths are 12′ randoms, with longer sizes available by request.

Finishes & Processing Services

Stainless round bar is typically stocked in annealed, cold drawn, smooth turned, or centerless ground finish. These options are suited for machining, forming, and shafting applications where strength and finish quality are essential. In-house services include saw cutting, large-diameter turning, chamfering, drilling, and tolerance grinding. Whether for single lengths or full production runs, our team can meet custom sizing and processing needs quickly and consistently.

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Available Styles and Materials

We stock stainless steel round bar in:

  • 303 Stainless Round Bar

    Free-machining stainless designed for high-speed turning, threading, and automated machining applications.

  • 304/304L Stainless Round Bar

    General-purpose material with excellent strength and corrosion resistance. Common in structural, food-grade, and architectural use.

  • 316/316L Stainless Round Bar

    Improved resistance to chlorides and corrosive media. Used in marine, chemical, and pharmaceutical manufacturing.

  • 17-4PH Stainless Round Bar

    High-strength stainless used for load-bearing, aerospace, and marine applications requiring toughness and stability.

  • Cold Drawn / Annealed / Turned / Ground Bar

    Available in multiple finish types for machining, forming, or shafting. Long lengths and custom cuts are available on request.

Bars are typically stocked in 12′ random lengths. Longer sizes and special grades are available upon request.

Stainless Steel Round Bar Specifications

Stainless products used in round bar applications are available in the following specifications:

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Grades Offered: 303, 304/304L, 316/316L, 17-4PH, and additional grades available on request. Selected for strength, machinability, corrosion resistance, and finish quality.

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Product Forms: Round bar in cold drawn, annealed, turned, or ground finish. Standard 12′ lengths with custom sizing available.

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Finishes: Annealed, cold drawn, smooth turned, and centerless ground. Surface finishes suited for machining or fabrication needs.

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Processing Capabilities: Saw cutting, bar turning, chamfering, centerless grinding, and tolerance finishing performed in-house.

These bar options support marine fabrication, pump and shaft production, high-performance machining, and custom structural needs.

Stainless Steel Round Bar Applications

Stainless steel round bar is commonly used in:

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Machining & Turned Parts: Precision components like fasteners, bushings, pins, and couplings that require accurate sizing and clean finishes.

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Pump & Fluid Systems: Shafts, stems, and structural parts in fluid transfer or chemical process systems requiring strength and corrosion protection.

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Food & Cleanroom Equipment: Machined bar for structural frames, enclosures, and supports in food-grade or sanitized manufacturing spaces.

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Construction & Fabrication: Structural braces, reinforcement rods, and hardware used in architectural, commercial, or outdoor environments.

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Marine & Energy Sectors: Corrosion-resistant shafting, pins, and supports in boats, offshore platforms, and high-demand mechanical systems.