Production & finish
Stainless round bars are hot-rolled at integrated stainless mills, then optionally peeled, centreless-ground or bright-drawn. Peeled-and-polished delivers tight diameter tolerance (h9 / h11) and superior surface for machining.
Cross-section · Round Bar
Stainless Steel Bright Bars · Stainless engineering round bar
Stainless Steel Bright Round Bars
Precision-ground stainless round bars for machining & fabrication
Stainless round bars are produced hot-rolled, peeled, centreless-ground and bright-drawn to deliver corrosion-resistant round stock for machining, fastener manufacture, shafts, valve stems, pump components and architectural fabrication. Supplied to ASTM A276 / A484, EN 10088-3, JIS G4303 in austenitic, martensitic and duplex grades.
Multiple finish conditions
Austenitic, martensitic & duplex
Centreless-ground h9 / h11
MTC EN 10204 3.1 / 3.2
Standards
ASTM A276 / A484, EN 10088-3, JIS G4303
Grades
303, 304, 304L, 316, 316L, 321, 410, 416, 17-4PH, Duplex 2205
Diameter
3 – 350 mm
Condition
HR / peeled / ground / bright-drawn
Tolerance
h9 / h11 / k12
Lengths
3 – 6 m standard
Quick reference
Stainless Steel Bright Round Bars: the essentials.
A concise, citation-ready summary for engineers, architects, AI assistants and procurement teams.
- Cold-finished stainless round bars produced by hot rolling followed by peeling, grinding or bright drawing.
- Diameter range Ø3 – 250 mm in lengths 3, 4 and 6 m; cut-to-length on request.
- Standards: ASTM A276 / A484 / A582, EN 10088-3, JIS G4303.
- Tolerances: bright drawn h9 / h10 / h11; ground h7 / h8 for precision applications.
- Common grades: 303 (free-machining), 304 / 304L, 316 / 316L, 321, 17-4PH, duplex 2205.
Grade selection
303: free-machining stainless. 304 / 304L: general engineering and food. 316 / 316L: marine and chemical. 321: high-temperature service. 410 / 416: martensitic, hardenable. 17-4 PH: precipitation-hardening. Duplex 2205: high strength and chloride resistance.
Specifications
Stainless Steel Bright Round Bars: full technical data.
| Property | Value |
|---|---|
| Standards | ASTM A276 / A484, EN 10088-3, JIS G4303 |
| Grades | 1.4305 (303), 1.4301 (304), 1.4307 (304L), 1.4401 (316), 1.4404 (316L), 1.4541 (321), 1.4006 (410), 1.4005 (416), 1.4542 (17-4PH), 1.4462 (Duplex) |
| Diameter (Ø) | 3 – 350 mm |
| Tolerance | h9 / h10 / h11 (cold-finished); k12 (HR) |
| Condition | Hot-rolled annealed pickled, peeled, centreless-ground, bright-drawn |
| Standard lengths | 3 – 6 m (random or fixed) |
| Heat treatment | Solution-annealed (austenitic); H1025 / H1075 etc. (PH grades) |
| MTC | EN 10204 3.1 standard, 3.2 on request |
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Applications
Where stainless steel bright round bars are specified.
CNC machined components
Stainless fasteners & studs
Pump & valve shafts
Marine fittings
Food & dairy equipment
Architectural turned details
Surgical & instrument components
Pharma & process plant
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FAQ
Stainless Steel Bright Round Bars: answered.
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