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Stainless Steel 303 Square Bar
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Neeka Tubes is a reliable producer of Stainless Steel 303 Square Bars. Ensuring top-quality and durable products. SS 303 Square Bar is a free-machining austenitic stainless steel known for excellent corrosion resistance and machinability. It comes in various surfaces like HRAP, hot rolled pickled, sandblasted, cold drawn, polished and hairline finishes. Making it ideal for precision components and machining applications. The square shape provides uniform strength and stability. Its precise edges assure easy fabrication and reliable performance in structural and industrial uses.
SS 303 square bar (DIN 1.4305 / UNS S30300) contains 17-19% chromium and 8-10% nickel, ensuring good corrosion resistance and machinability. It has a tensile strength of 85,000 psi and a yield strength of 45,000 psi. With 50% elongation and a hardness of Rockwell B 95 it is strong and durable. The square bar also known as Box Bar offers stability. Making it useful for machining and structural applications.
Buy Huge Quantity of Stainless Steel 303 Square Bar, stainless steel 303 Square rod, SS 303 bright bar, SS 303 Square bar stock, ASTM A276 SS 303 square bar, Buy Stainless Steel 303 Square Bar at Best Price in India.
Features of Stainless Steel 303 Square Bar
- Superior Machinability: SS 303 square bars are designed for easy machining operations. The added sulfur content makes them cut faster than standard grades. Chips break cleanly without tangling around cutting tools. Machine shops prefer this grade for high-volume production runs.
- Smooth Surface Finish: These bars arrive with polished surfaces that need minimal finishing work. The clean edges and corners look professional right out of the box. This quality reduces prep time before final assembly or coating. The finished parts have a consistent appearance across batches.
- Easy Weldability & Fabrication: While 303 isn’t the easiest grade to weld, it can be joined with proper technique. Pre-heating and filler selection matter for strong welds. The material bends and forms well for creating custom shapes.
- Size Availability: Common sizes range from small 10mm bars to larger 100mm sections. Stock sizes cover most standard machining and fabrication needs. Special dimensions can be ordered for unique project requirements. You’ll find the right size for precision parts or larger components.
- Stable Square Shape: The four-sided profile stays true during cutting and machining operations. Corners remain sharp and edges stay straight under normal handling. This stability makes alignment and assembly more accurate. Parts fit together cleanly without gaps or misalignment issues.
- Versatile Usage: These bars work well for bolts, nuts, and threaded components. Shafts, fittings, and valve parts are common applications too. Food processing equipment often uses 303 for its machining benefits. The material adapts to many industrial and commercial projects.
UNS S30300 stainless steel square bar is used in making shafts, gears, fasteners and fittings. Its machinability makes it ideal for precision components in automotive and aerospace industries. It is also used in food processing and marine applications. Because of its corrosion resistance. The square shape provides stability, making it ideal for structural frameworks and machinery parts needing uniform load distribution.
Most Common Types of Stainless Steel 303 Square Bars
SS 303 Solid Square Bar
Hot Rolled Annealed Pickled SS 303 Square bar
12mm SS 303 Square Bar
SS 303 Square Bright Bar
SS 303 Square Rod
Cold Drawn SS 303 Square Bar
8mm SS 303 Square Bar
10mm SS 303 Square Bar
Stainless Steel 303 Square Bars Specifications
| Specification | EN, DIN, ASTM, ASME, API, GB, SUS, AISI, UNS |
|---|---|
| Standard | ASTM / ASME – A276 / SA276, A479 / SA479, and A582 / SA582 |
| Sizes | 3mm to 800mm diameter |
| Length |
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| Finish | Polished, Peeled, Bright Drawn, Bright, Cold Drawn Turned, Centreless Ground, Black, Annealed, Rough Turned, Grinding, Smooth Turned |
| Tolerances | H8, H13, H11, H10, H9, K9, H12, K11, K12, K10 |
| Surface Finish | 1D, 8K, HL, NO.3, NO.1, BA, 2B, NO.4, 2D |
| Production Method | Rolled / Forged |
| Characteristics |
|
| Typical application of SS Square Bar |
|
| Services |
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| Our Stainless Steel Square Bar conforms to Standard ISO 15156/ NACE MR0175 | |
We Offers Custom Sizes and fast delivery of Stainless Steel 303 Square Bars in Mumbai, Check Dimensions & Sizes of SS 303 Square Bar.
Stainless Steel 303 Square Bar Chemical Composition
| Element | C | Cr | Mn | Ni | P | S | Si |
|---|---|---|---|---|---|---|---|
| SS 303 | 0.15 max | 0.15 min | 2 max | 8 – 10 | 0.20 max | 0.15min | 1max |
Mechanical Properties of Stainless Steel 303 Square Bar
| Element | Tensile Strength | Yield Strength | Elongation | Reduction in Area | Hardness |
|---|---|---|---|---|---|
| SS 303 | 500-750 MPa | 190 MPa | 35% | – | 230 HB |
Equivalent Grades For Stainless Steel 303 Square Bar
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 303 | 1.4305 | S30300 | SUS 303 | – | – | – | – |
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Stainless Steel 303 Square Bar Size Chart
| Size (mm) | Size (Inches) | Weight (kg/m) |
|---|---|---|
| 6 x 6 | 1/4″ x 1/4″ | 0.28 |
| 8 x 8 | 5/16″ x 5/16″ | 0.50 |
| 10 x 10 | 3/8″ x 3/8″ | 0.79 |
| 12 x 12 | 1/2″ x 1/2″ | 1.13 |
| 16 x 16 | 5/8″ x 5/8″ | 2.01 |
| 20 x 20 | 3/4″ x 3/4″ | 3.14 |
| 25 x 25 | 1″ x 1″ | 4.91 |
| 32 x 32 | 1-1/4″ x 1-1/4″ | 8.03 |
| 40 x 40 | 1-1/2″ x 1-1/2″ | 12.56 |
| 50 x 50 | 2″ x 2″ | 19.63 |
| 65 x 65 | 2-1/2″ x 2-1/2″ | 33.17 |
| 75 x 75 | 3″ x 3″ | 44.26 |
| 100 x 100 | 4″ x 4″ | 78.50 |
Stainless Steel 303 Square Bar Weight Chart
| SQUARES | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.62 | 2.05 |
| 18 | 0.79 | 2.59 |
| 20 | 0.76 | 2.49 |
| 22 | 1.18 | 3.87 |
| 25 | 1.52 | 5.00 |
| 28 | 1.91 | 6.27 |
| 30 | 2.19 | 7.20 |
| 32 | 2.50 | 8.19 |
| 36 | 3.16 | 10.37 |
| 38 | 3.52 | 11.55 |
| 40 | 3.90 | 12.80 |
| 45 | 4.94 | 16.20 |
| 50 | 6.10 | 20.00 |
| 56 | 7.65 | 25.08 |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
SS 303 Square Bar Packing & Marking
Testing and Packing
SS 1.4305 square rods are accompanied with a Mill Test Certificate, Positive Material Identification Test Report, Visual Inspection Report, Third Party Inspection Report and NABL Certified Laboratory Report. Our team ensures that it packs the products carefully using wooden crates, bubble wraps and plastic covers to avoid any damage during the transportation. They are well labelled to ease identification and safe packaging and delivery of each package.
Shipping and marking
UNS S30300 square stainless steel rods are delivered on time with proper packaging to prevent damage. Each bar is clearly marked with grade, size and heat number for easy identification. We supply products with test certificates and analysis reports. Guaranteeing quality and traceability. Our efficient logistics team assures safe and prompt delivery to customers worldwide.
Certifications & Packaging
To ensure its outstanding quality, SS 303 square bar is subjected to various tests, including hardness, pitting resistance, hydrostatic/radiography, chemical/mechanical, micro/macro, and IGC/PMI. Each batch is certified with mill test certificates, third-party inspection reports, and compliance documentation. To protect our pipes throughout shipment and storage, we pack with hardwood boxes, bundles, or plastic wrapping. It meets ASTM A276, and ASTM A479 requirements, and our tubing is of international benchmark quality.
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