Aiman Metals, Kuala Lumpur, Malaysia, deals in the production and export of superior quality Stainless Steel 303 Hex Bars and Rods. They are prized for their superior machinability, corrosion resistance, and stable austenitic structure. These bars are designed to perform well under harsh and corrosive conditions. Resistant to chloride ion stress corrosion cracking and compatible with reducing and oxidizing acids such as sulfuric and phosphoric acid, SS 303 Hex Bars ensure consistent performance in all industries. Used extensively in chemical processing, petrochemical, offshore oil, nuclear power, food processing, petroleum refining, and waste disposal, Aiman Metals ensures robust, precision-crafted stainless steel products suited to critical industrial applications.
Stainless Steel 303 Hex Bars and Rods are an austenitic stainless steel alloy which contains sulfur and phosphorus added to enhance their machinability. Their chemical makeup is 17–19% chromium, 8–10% nickel, 0.15% sulfur, and traces of molybdenum for enhanced corrosion resistance. Mechanically, they have tensile strengths ranging between 500–750 MPa, yield strengths ranging between 190–450 MPa, and hardness levels reaching 229 HB. The alloy is a blend of durability, corrosion resistance, and compressive strength, which finds application in precision use where resistance to stress corrosion and high-performance reliability under demanding conditions are required.
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 applications in industries where strength, machinability, and corrosion resistance are paramount. They are suited for precision parts like bolts, nuts, shafts, gears, and fittings. Typical applications are chemical and petroleum processing equipment, food processing machines, and seawater environments. SS 303 is also utilized in aerospace, automotive, and healthcare industries for parts that demand high strength and resistance to stress corrosion cracking. Its reliability under harsh conditions makes it an ideal material for offshore oil rigs, refuse handling systems, and other severe industrial services where strength and precision matter.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aiman Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kuala lumpur, Malaysia
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