Stainless Steel Round Grade 303
Stainless Steel Grade 303 round bar is the premier choice for high-speed automated machining. Grade 303 (EN 1.4305) has been specifically formulated by adding sulphur, making it the most readily machinable and free-cutting of all austenitic stainless steel grades.
If your project requires the high-volume production of intricate parts, grade 303 round bar offers significantly higher cutting speeds, reduced tool wear, and a superior surface finish compared to other alloys like Grade 304.
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- 20mm Diameter 303 Stainless Steel Round Bar£62.49 p/m (ex VAT)
Key Characteristics of Grade 303 Round Bar
- Ultimate Machinability: Engineered for high speed CNC turning and automatic lathes,it produces small, manageable chips that prevent long chipping and tool clogging.
- Non-Galling Properties: Reduced risk of seizing or galling on threaded components and precision mating parts.
- Good Corrosion Resistance: Offers reliable durability in mild atmospheric and food-processing environments (note: the sulphur content reduces overall corrosion resistance compared to 304, making it unsuitable for marine environments or structural welding).
- Non-Magnetic: Remains non-magnetic in the annealed condition.
- Time & Cost Efficiency: Faster machining cycles and extended insert life reduce production costs for large-scale batches.
Common Applications of Grade 303 Stainless Steel Round Bar
- CNC Machined Parts: High-volume repetition turning production of bolts, nuts, screws, and fasteners.
- Precision Engineering: Bushings, shafts, gears, valve spindles and intricate mechanical components.
- Aircraft Fittings: Non-critical structural parts and fittings that require high-precision tolerances.
- Electrical Components: Switchgear parts and spacers that require non-magnetic properties.
Why Order from metals4U?
- Precision Cut to Length: Our professional sawing service delivers your Grade 303 rod at the exact length required, minimising setup time and material scrap.
- Extensive Stock: We carry a wide range of diameters ready for fast despatch.
- No Minimum Order: We support small-scale prototyping and large-scale industrial runs with equal efficiency.
- Fast UK-Wide Delivery: Benefit from rapid shipping from our central hub. All orders over £115 (England & Wales) qualify for free delivery.
- Certified Quality: Every bar is sourced from premium mills, ensuring consistent chemical and mechanical properties for your machining process.
