Stainless Steel 304 Round Bar

Neeka Tubes supplies SS 304 round bar to buyers across food, chemical, and construction sectors for reasons that come down to composition, machining behaviour, and moisture resistance.

• Chromium between 18 and 20 % forms an oxide film that repairs itself, so the bar resists rust in wet processing areas.
• Tensile strength of 515 MPa and yield of 205 MPa let fabricators load shafts, pins, and anchor rods without oversizing the section.
• Carbon capped at 0.08 % limits chromium carbide formation during welding, so joints hold up across light and medium gauge fabrication.
• Machinists run 304 on standard lathes and CNC equipment, though sharp tooling and steady feed rates prevent work hardening on the cut.
• Food and dairy plants favour polished bar because it sheds residue during washdown and survives repeated cleaning with caustic and steam.
• Chemical plants, construction sites, and general engineering shops use the grade for valve stems, pump shafts, fasteners, and handrail components.
• Match diameter, finish, and tolerance class to the job, since centreless ground bar suits tight fits and black bar suits machining.
• Check that your supplier holds ready stock across your diameter range, because mill lead times stretch delivery on odd sizes.
• Ask for Mill Test Certificates against ASTM A276 or A479, plus PMI reports confirming the heat matches what the paperwork states.