Phehlukwayo Metals specializes in manufacturing and exporting stainless steel 303 hexagon bars and rods, valued for their superior resistance to chloride ion stress corrosion cracking and stable austenitic structure. Engineered for performance in corrosive environments, these Type 303 Hex Bars resist reducing and oxidizing acids like sulfuric and phosphoric acids, mitigating stress-corrosion cracking. With chromium and molybdenum for enhanced durability, they excel in industries such as chemical processing, petrochemicals, offshore oil, nuclear power, food processing, petroleum refining, and waste disposal, ensuring reliability in demanding applications.
Stainless steel 303 hex bars and rods are made from austenitic stainless steel with added sulfur and phosphorus for improved machinability. They typically contain 17-19% chromium, 8-10% nickel and 0.15% sulfur, with small amounts of molybdenum to increase corrosion resistance. These rods exhibit excellent mechanical properties, with tensile strengths of 500-750 MPa, yield strengths of 190-450 MPa, excellent and hardness up to 229 HB Known for their durability, resistance to corrosion and compression a it breaks down they differ in technical and pressure-requiring environmental conditions .
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 find their way into various applications that call for precision machining and moderate corrosion resistance. They’re commonly used in the production of nuts, bolts, shafts, gears, fittings, and fasteners. Industries such as automotive, food processing, marine, and instrumentation depend on 303 Hex Bars for their remarkable dimensional stability and smooth finish. Additionally, due to their non-magnetic properties and durability, they are also utilized in equipment components, valve parts, and machine screws that demand both high performance and excellent surface quality.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Phehlukwayo Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Cape Town, South Africa
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