Welcome to Nimish Metal, your trusted manufacturer and supplier in Safat, Kuwait, for precision-engineered stainless steel solutions. We take pride in offering high-quality Stainless Steel 303 Hex Bar and Rod, materials chosen for their exceptional machinability and reliability. Our commitment ensures you receive products that meet stringent standards, perfect for fabricators and engineers who demand consistency and performance. When you need a dependable partner for superior stainless steel components, Nimish Metal is here to deliver with the expertise and service you can count on.
Stainless Steel 303 is an austenitic grade specially enhanced with sulfur, which gives it outstanding machinability, making it significantly easier to cut and shape than many other types. This free-machining characteristic comes with good mechanical properties, including tensile strength and a resistance to corrosion that handles atmospheric exposure well. While it’s not intended for marine environments, it provides a robust balance of strength and workability, ideal for creating intricate parts where a smooth finish and dimensional accuracy are paramount for the final product.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A276, A479, ASTM A493
Length : Random, Fix & Cut Length
Size : 20MM to 150MM
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| Stainless Steel 303 | 0.15 max | 2 max | 1 max | 0.20 max | 0.15 min | 17.0-19.0 | – | 8 – 10 |
| Element | Tensile Strength | Yield Strength | Elongation | Reduction in Area | Hardness |
| SS 303 | Psi – 85,000 | Psi – 45,000 | 50% | 55% | Rb 180 |
| Element | Density, lb/in3 | Modulus of Elasticity, psi | Linear Expansion, 68-212°F, /°F | Thermal Conductivity, Btu/ft hr°F | Heat Capacity, Btu/lb°F | Electrical Resistivity, Ω-inch |
| SS 303 | 0.285 | 29 x 106 | 9.4 x 10-6 | 8.7 | 0.12 | 27.6 x 10-6 |
| HEXAGONS | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.55 | 1.79 |
| 18 | 0.69 | 2.27 |
| 20 | 0.85 | 2.80 |
| 22 | 1.03 | 3.39 |
| 25 | 1.33 | 4.38 |
| 28 | 1.67 | 5.49 |
| 30 | 1.92 | 6.30 |
| 32 | 2.19 | 7.17 |
| 36 | 2.77 | 9.07 |
| 38 | 3.08 | 10.11 |
| 40 | 3.41 | 11.20 |
| 45 | 4.32 | 14.18 |
| 50 | 5.34 | 17.50 |
| 56 | – | – |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
Stainless Steel 303 offers excellent machinability due to sulfur addition, good corrosion resistance, high toughness, and decent strength. It's ideal for precision machining, retaining mechanical properties while being easily cut.
Stainless Steel 303 has superior machinability due to added sulfur but slightly reduced corrosion resistance compared to 304 or 316. It balances easy machining with moderate corrosion resistance for non-critical environments.
Common finishes for Stainless Steel 303 hex bars/rods include polished, brushed, and matte finishes. Treatments like passivation improve corrosion resistance, while electropolishing enhances durability and appearance. Protective coatings and bead blasting offer additional surface refinement options.
The excellent machining quality of Stainless Steel 303 makes these hex bars and rods a favorite for components that require extensive turning, milling, or threading. You’ll commonly find them in the automotive industry for fittings and shafts, in aerospace for non-critical parts, and widely across the manufacturing of fasteners, nuts, bolts, and gears. They are also perfectly suited for pump shafts, valves, and other apparatus used in chemical and food processing equipment, where their combination of corrosion resistance and ease of fabrication streamlines production and ensures long-lasting performance.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Nimish Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Safat, Kuwait
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