Chuck Metals is a well-respected manufacturer and supplier of Stainless Steel 303 Hex Bars and Rods based in Singapore, catering to various industrial sectors across Pulau Ujong with top-notch stainless steel solutions. Stainless Steel 303 is crafted for outstanding machinability, making it perfect for high-speed machining tasks while still maintaining its corrosion resistance and mechanical strength. Produced in line with international standards like ASTM A276, these hex bars and rods boast precise dimensions, excellent surface finishes, and superior workability. Chuck Metals is committed to delivering consistent quality and timely service, which has made them a go-to supplier for precision-machined components.
Stainless Steel 303 is made up of about 17–19% chromium, 8–10% nickel, and 0.15% sulfur to enhance its machinability. While the sulfur content does slightly lower its corrosion resistance, it significantly boosts chip-breaking and extends tool life during machining. With a tensile strength of around 585 MPa, a yield strength of about 240 MPa, and an elongation of 35%, it strikes a great balance between strength and machinability. It performs well in dry environments but isn’t the best choice for marine or highly corrosive settings.
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.
You’ll find Stainless Steel 303 hex bars and rods commonly used in industries like automotive, aerospace, fasteners, electrical, and instrumentation. Their free-machining properties make them ideal for crafting bolts, nuts, gears, bushings, screws, and other precision-turned parts where tight tolerances and high-speed production are crucial. These components are typically found in dry mechanical assemblies, valve fittings, and industrial machinery. While they may not be suitable for marine or chemical exposure, 303 stainless steel is highly regarded for its ease of machining and clean finish in general industrial applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chuck Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Singapore, Singapore
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