Stainless Steel 303 Square Bars are precision-engineered long products widely used in industrial fabrication, mechanical engineering, and structural applications where machinability and dimensional stability are critical. Steel Icon Stainless Pvt. Ltd. manufactures high-quality SS 303 square bars designed to meet the performance demands of modern manufacturing industries, including automotive, chemical processing, power generation, and general engineering sectors.
These stainless steel square bars are known for their excellent cutting characteristics and smooth surface finish, making them ideal for components that require extensive machining. Whether used in structural supports, shafts, valve components, or custom-machined parts, Stainless Steel 303 Square Bars deliver consistent quality and dependable service performance in moderately corrosive environments.
Stainless Steel 303 is an austenitic chromium-nickel stainless steel grade enhanced with sulfur to improve machinability. The typical composition includes approximately 17 to 19 percent chromium and 8 to 10 percent nickel, with controlled sulfur content that allows easier chip breaking during machining operations. This makes Stainless Steel 303 Square Bars one of the most machinable grades within the 300 series stainless steel family.
The austenitic microstructure provides good toughness, non-magnetic properties in the annealed condition, and reliable mechanical strength. The chromium content forms a passive oxide layer that protects the surface from oxidation and general corrosion in atmospheric and mild chemical environments. While it is not recommended for severe chloride exposure, SS 303 square bars perform efficiently in industrial indoor environments, machinery components, and general structural fabrication.
Mechanically, these bars offer balanced tensile strength, moderate yield strength, and good elongation. They maintain dimensional accuracy during turning, milling, drilling, and threading processes. Their consistent metallurgical properties make them suitable for precision parts used in pumps, fittings, fasteners, and industrial equipment.
Stainless Steel 303 Square Bars, Stainless Steel 303 Square Bars Manufacturers, Stainless Steel 303 Square Bars Suppliers, Stainless Steel 303 Square Bars Stockists, Stainless Steel 303 Square Bars Exporters
One of the primary advantages of Stainless Steel 303 Square Bars is their superior machinability. The sulfur addition significantly reduces tool wear and increases machining speed, improving productivity in manufacturing environments. This makes them highly cost-effective for producing large volumes of precision components. Corrosion resistance is another important benefit. The chromium-rich alloy resists oxidation and rust under normal atmospheric conditions and mild industrial exposure. This ensures longer service life in fabricated assemblies, structural frameworks, and mechanical systems.
Durability and strength further enhance their value. These square bars maintain structural stability under moderate loads and resist deformation during fabrication. Their ease of fabrication, combined with consistent mechanical properties, makes them suitable for industrial fabrication projects involving stainless steel pipes, tubes, plates, and coils integrated into larger assemblies.
Stainless Steel 303 Square Bars also provide long-term economic efficiency. Reduced machining time, lower maintenance requirements, and reliable performance contribute to overall cost savings in engineering and manufacturing operations.
Stainless Steel 303 Square Bars in India, Stainless Steel 303 Square Bars Manufacturers in India, Stainless Steel 303 Square Bars Suppliers in India, Stainless Steel 303 Square Bars Stockists in India, Stainless Steel 303 Square Bars Exporters in India
In the automotive and machinery sector, Stainless Steel 303 Square Bars Manufacturers supply precision bars used in the production of shafts, couplings, and gear components that require accurate machining and smooth surface finish. The material’s machinability ensures tight tolerances and reliable performance in mechanical assemblies. Within industrial fabrication and plant maintenance, Stainless Steel 303 Square Bars Suppliers support the development of brackets, supports, and structural components used in power plants, processing units, and heavy engineering workshops. The square profile offers enhanced structural stability in welded and bolted constructions.
For general engineering and custom machining operations, Stainless Steel 303 Square Bars Stockists provide ready-to-ship bar stock in multiple sizes, ensuring quick availability for urgent fabrication requirements. Consistent supply reduces downtime in manufacturing units and fabrication facilities. In international trade and infrastructure projects, Stainless Steel 303 Square Bars Exporters deliver high-quality stainless steel long products to global markets for use in structural engineering, equipment manufacturing, and industrial assemblies. Compliance with international quality standards ensures dependable performance across regions.
Stainless Steel 303 Square Bars in United States, Stainless Steel 303 Square Bars Manufacturers in United States, Stainless Steel 303 Square Bars Suppliers in United States, Stainless Steel 303 Square Bars Stockists in United States, Stainless Steel 303 Square Bars Exporters in United States
Stainless Steel 303 Square Bars are commonly manufactured according to ASTM A276 and ASTM A479 specifications, which cover stainless steel bars and shapes for general engineering and pressure equipment applications. The corresponding ASME standards include ASME SA276 and ASME SA479, ensuring suitability for high-temperature and pressure-related services. These standards define chemical composition limits, mechanical properties, heat treatment requirements, and dimensional tolerances. Compliance with these international specifications guarantees that SS 303 square bars meet quality benchmarks required in power plants, chemical processing facilities, and industrial piping systems.
Steel products such as square bars, round bars, pipes, tubes, plates, sheets, and coils are classified based on chemical composition, mechanical performance, and intended application under international standards including ASTM, ASME, EN, DIN, JIS, and ISO. ASTM and ASME standards are widely used for pressure vessels, piping systems, and structural components in North America and global energy markets. EN and DIN standards govern European engineering materials, while JIS applies to Japanese industrial requirements. ISO ensures harmonized testing and quality management practices worldwide. Stainless steel grades like 303 are identified by alloy composition and performance characteristics, enabling engineers and procurement specialists to specify materials confidently for fabrication, structural engineering, and industrial processing systems.
Steel Icon Stainless Pvt. Ltd. is one of the leading manufacturer and supplier of SS 303 Square Tube Supplier in India, Purchase In Bulk Or In Small Amounts of SS 303 Square Pipe, 303 SS Black Bar, 303 Stainless Steel Rods, ASTM A276 SUS 303 Round Bar, ASME SA 276 303 Bar, Square Bar, Hex Bar at the best price in India.
Request Latest Price & Stock Availability| SS Bar Wire Standard | ASTM A276 / A479, ASME SA276 / SA479 |
|---|---|
| Stainless Steel Bar Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Stainless Steel Round bar size | Diameter: 3-~800mm |
| Stainless Steel Hex Bar size | 2-100mm A/F |
| SS Flat bar size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| Stainless Steel Square bar size | 4 to 100mm |
| SS Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Stainless Steel Rectangular Size | 33 x 30mm to 295 x 1066mm |
| SS Bars Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| SS Bar Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Tempers | Tempers range from dead soft annealed to ultra spring temper |
| Rolled Stainless Steel Flat Bars Condition | Hardened & tempered, annealed |
| Cold Rolled Bar Technique | Stainless Steel Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Stainless Steel Rounds Bar Form | Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
| SS 303 | 0.15 max | 2 max | 1 max | 0.20 max | 0.15 min | 17.0-19.0 | – | 8 – 10 | – |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 0.285 lb/in3 | - | Psi – 85000 | Psi – 45000 | 50 % |
