Stainless Steel Round Bar 303
AISI 303 (1.4305) free-machining stainless steel round bar to EN 10278 for CNC turning and drilling, Ø4–60 mm. Stock lengths up to 6 m depending on diameter.
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Available Sizes & Finishes
20 sizes available
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Applications & Selection Guide
Free-machining round bar in AISI 303 (1.4305) to EN 10278. Added sulphur breaks chips short, so 303 turns and drills faster than 304 with better tool life.
It is used for CNC-turned parts, screws, nuts, bushes, valve parts and fittings. The trade-off is lower corrosion resistance and poor weldability compared with 304, so it is not chosen for welded or wet-service parts. Diameters run from Ø4 mm to Ø60 mm.
Stock lengths run up to 6 m depending on size, with cut pieces available on larger sizes. Send size, length, quantity and destination in a quote request; we confirm stock, price and lead time.
Technical guides
304 vs 316 stainless steel: composition, strength, corrosion resistance and when to use each
How 304 (1.4301) and 316 (1.4401/1.4404) stainless steel differ in composition, PREN, strength and chloride resistance, what the L grades and A2/A4 fasteners mean, and which grade to choose.
Read the guide →Stainless steel bar weight chart: round, square, hexagon, flat bar and angle (kg/m)
Weight per metre of 304, 303 and 316L stainless round, square, hexagon and flat bar and equal angle, with the formulas and the weight of a 6 m bar.
Read the guide →Metal weight calculator
Free metal weight calculator: kg/m and total weight of steel, stainless and aluminium tubes, bars, angles and sheet. Formulas and densities explained.
→Product Information
Material Grade
AISI 303 / 1.4305
Manufacturing Standard
EN 10278
Material Type
Stainless Steel
Category
Round Bar 303
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