Stainless Steel Precision Ground Bars
High-Precision Stainless Steel Ground Bars in Stock and Custom Diameters
Action Stainless supplies stainless steel ground bars in a range of diameters and lengths to support machining, fabrication, and performance-critical shafting applications. Precision ground bar is used across aerospace, food processing, marine, and industrial sectors where surface finish, tolerance, and straightness are essential.
We offer
303, 304/304L, 316/316L, and 17-4PH ground bars in diameters from
1/4″
to
9.5″ and up to
24 feet in length. Our inventory includes Bearing Quality Bar, Accuracy Stock, and Precision Ground Bar in both imperial and metric sizes, meeting standard and tight-tolerance requirements.
Finishes & Processing Services
Stainless steel ground bars are available with a smooth, bright finish ideal for shafting, bushing, and alignment applications. For more demanding requirements, we offer centerless grinding, polishing, and bar turning for enhanced surface quality and straightness. We provide in-house saw cutting, turning, facing, chamfering, and grinding services. Our team also handles special tolerances and large-diameter finishing work with speed and precision. Material can be shipped in full bar lengths or pre-cut sections ready for machining.
Available Styles and Materials
We stock stainless steel ground bar
in:
303 Stainless Steel Ground Bar
Free-machining material with excellent dimensional stability. Common for high-speed turning and threaded components.
304/304L Stainless Steel Ground Bar
General-purpose grade with strong corrosion resistance. Used in structural shafts, fasteners, and alignment pins.
316/316L Stainless Steel Ground Bar
Enhanced corrosion protection for marine and chemical use. Ideal for shafts, pumps, and guide rods in corrosive environments.
17-4PH Ground Bar
High-strength stainless for critical load-bearing applications. Used in aerospace components, marine shafts, and drive pins.
Precision Ground / Bearing Bar / Accuracy Stock
Tightly controlled finishes and tolerances to meet demanding roundness and straightness specs. Available in imperial and metric sizes.
Bars are available in diameters from 1/4″ to 9.5″ and lengths up to 24 feet. Custom sizing and tight tolerance grinding are available upon request.
Stainless Steel Ground Bar Specifications
Precision ground stainless bar is available in the following specifications:
Grades Offered: 303, 304/304L, 316/316L, 17-4PH: and other round bar grades selected for machining efficiency, dimensional stability, and corrosion resistance.
Product Forms: Round bar precision ground to standard or special tolerance. Stocked in multiple diameters and lengths up to 24 feet.
Finishes:
Supplied with bright turned or ground finish. Polished and chamfered ends available upon request.
Processing Capabilities: Centerless grinding, turning, facing, saw cutting, chamfering, and tolerance-specific finishing performed in-house.
These bar options and machining services support a wide range of industrial, marine, aerospace, and mechanical applications requiring high accuracy and surface quality.
Stainless Steel Ground Bar Applications
Stainless steel ground bar
is commonly used in:
Precision Shafts & Bearings:
Guide rods, axles, and support shafts requiring dimensional accuracy and smooth finishes for rotating components.
Pump & Valve Components:
Shafts and rods exposed to pressure, chemicals, or moisture in industrial fluid handling systems.
Food & Pharmaceutical Equipment:
Machined components for sanitary assemblies and support rods for cleanroom equipment.
Automotive & Aerospace Machining:
Pins, couplers, actuators, and brackets where straightness and tolerance consistency are critical.
Fabrication & General Machining:
Cut-to-length bars used in turned parts, bushings, rollers, and structural assemblies.
