Maduka Metals, a top-notch manufacturer and supplier located in Abuja, Nigeria, is well-known for crafting high-quality **Stainless Steel 303 Hex Bars and Rods**. These bars are expertly designed to offer excellent machinability, corrosion resistance, and durability, making them perfect for precision engineering and mechanical applications. By utilizing advanced manufacturing techniques and top-grade raw materials, Maduka Metals guarantees that each product adheres to international quality standards, featuring precise dimensions and smooth finishes. Stainless Steel 303, a free-machining grade of austenitic stainless steel, delivers exceptional performance in components that require extensive machining and a high-quality surface finish.
**Stainless Steel 303 Hex Bars and Rods** primarily consist of **iron**, along with **17–19% chromium**, **8–10% nickel**, and a touch of **0.15–0.35% sulfur** to boost machinability. They also include trace amounts of **manganese**, **silicon**, and **phosphorus**. This material showcases impressive **tensile strength (500–750 MPa)**, good **ductility**, and moderate corrosion resistance. The sulfur content enhances cutting performance, although it slightly diminishes corrosion resistance compared to 304 stainless steel. This balance makes 303 an excellent choice for high-speed machining operations while maintaining dimensional stability.
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.
**Stainless Steel 303 Hex Bars and Rods** find extensive use in **automotive components, gears, shafts, fasteners, valve parts, screws, nuts, and fittings** that require significant machining. They are also well-suited for **aircraft parts, instrumentation, and mechanical assemblies** where precision and smooth finishes are crucial. These bars excel in **mildly corrosive environments** like industrial settings and freshwater exposure. Their unique combination of machinability, strength, and surface quality makes Stainless Steel 303 a go-to option for industries that demand efficient production and reliable mechanical performance.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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