Semih Metals, located in Istanbul, Turkey, has established itself as a top-notch manufacturer and supplier of premium stainless steel products, with a particular focus on precision-engineered hex bars and rods. One of their standout offerings is the Stainless Steel 303 Hex Bar/Rod, renowned for its exceptional machinability and resistance to corrosion. These hex bars and rods are crafted under rigorous quality standards, ensuring they deliver both consistency and reliability for various industrial applications. Semih Metals caters to a wide range of clients in the automotive, engineering, and manufacturing sectors, providing customized solutions and prompt delivery, all while keeping prices competitive and customer service at the forefront.
The Stainless Steel 303 Hex Bar/Rod is an austenitic stainless steel alloy that has been enhanced with sulfur and phosphorus to boost machinability without significantly sacrificing corrosion resistance. It typically comprises 17–19% chromium, 8–10% nickel, along with trace amounts of manganese, silicon, and carbon. Its mechanical properties are impressive, featuring a tensile strength of about 580–750 MPa, yield strength around 250–450 MPa, and an elongation of 40–45%, which gives it both strength and ductility. The hardness falls between 150–200 HB, and it showcases excellent wear resistance, moderate toughness, and stability at higher temperatures, making it perfect for precision-machined components.
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 Stainless Steel 303 Hex Bar/Rod is commonly utilized in scenarios where high machinability and moderate corrosion resistance are essential. It’s frequently found in the production of bolts, nuts, gears, shafts, and fittings, making it a go-to material for automotive, aerospace, and mechanical engineering applications. Its ability to resist oxidation and pitting ensures it performs reliably in mildly corrosive environments. Moreover, 303 hex bars are often used in valve parts, bushings, and fasteners, where precision machining and dimensional stability are crucial. The blend of strength, durability, and ease of fabrication makes it a favored choice for both industrial and commercial projects.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Semih Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Istanbul, Turkey
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