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Neeka Tubes is a leading supplier of square bars made of stainless steel. We offer durable and high-quality products that are known for their strength and resistance to corrosion. SS Square Bar, widely known as Box Bar, is produced from stainless steel. It is quite popular, as it is extremely resistant to rust. As it is strong and reliable in high-use regions, it is also often used in structural and industrial environments.
SS square bar offers excellent strength and durability. With 85,000 Psi tensile strength and 45,000 Psi yield strength. It contains 18-20% chromium and 8-11% nickel, ensuring corrosion resistance. With 50% elongation and 55% reduction in area. Stainless Steel Square Bar resists rust and oxidation, making it ideal for humid and marine environments where moisture exposure is high.
Advantages of Stainless Steel Square Bar
SS square bar has many applications in construction, automobile, food processing industries and in the marine sector. It is suitable for frameworks, support and structural parts. The material has good corrosion resistance which make it suitable for chemical and water usage. The above shape provides stability and solidity and therefore it is suitable for the fabrication, machinery and architectures. It is also used in railings, fasteners and industrial equipment.








| Specification | EN 10272, EN 10088-3 Grade 304, 316, 304L, 316L |
|---|---|
| Standard | EN, DIN, ASTM, ASME, API, GB, SUS, AISI, UNS |
| 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 |
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| Typical application of SS Square Bar |
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| Services |
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| Our Stainless Steel Square Bar conforms to Standard ISO 15156/ NACE MR0175 | |
| Element | C | Cr | Mn | Ni | P | S | Si |
|---|---|---|---|---|---|---|---|
| SS 304 | 8.0 β 11.0 | 18.0 β 20.0 | 2.0 max | 8.0 β 11.0 | 0.045 max | 0.03 max | 1.0 max |
| SS 316 | 0.08 | 18.0 | 2.00 | 14.0 | 0.045 max | 0.03 max | 0.75 max |
| SS 303 | 0.15 max | 0.15 min | 2 max | 8 β 10 | 0.20 max | 0.15min | 1max |
| Element | Tensile Strength | Yield Strength | Elongation | Reduction in Area | Hardness |
|---|---|---|---|---|---|
| SS 304 | Psi β 85,000 | Psi β 45,000 | 50% | 55% | Rb 180 |
| SS 303 | 500-750 MPa | 190 MPa | 35% | – | 230 HB |
| SS 316 | Min.515 MPa | Min.205 MPa | 40% | – | B 95 |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 304 | 1.4301 | S30400 | SUS 304 | 304S31 | 08Π₯18Π10 | Z7CN18-09 | X5CrNi18-10 |
| SS 316 | 1.4401 / 1.4436 | S31600 | SUS 316 | 316S31 / 316S33 | – | Z7CND17β11β02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
| SS 303 | 1.4305 | S30300 | SUS 303 | – | – | – | – |
Contact Neeka tubes today for a best offer & competitive quotation Of Stainless Steel Square Bar
Please Call on +91 7700067892 or drop an E-Mail : sales@neekatubes.net
| Width X Depth | Width X Depth | Width X Depth |
|---|---|---|
| milimeter | milimeter | milimeter |
| 5X5 | 20X20 | 48X48 |
| 4X4 | 19X19 | 45X45 |
| 7X7 | 22X22 | 53X53 |
| 6X6 | 21X21 | 50X50 |
| 9X9 | 25X25 | 60X60 |
| 8X8 | 24X24 | 56X56 |
| 11X11 | 28X28 | 67X67 |
| 10X10 | 26X26 | 63X63 |
| 13X13 | 32X32 | 75X75 |
| 12X12 | 30X30 | 70X70 |
| 15X15 | 35X35 | 85X85 |
| 14X14 | 34X34 | 80X80 |
| 17X17 | 40X40 | 95X95 |
| 16X16 | 38X38 | 90X90 |
| 18X18 | 42X42 | 100X100 |
| Stainless Steel Square Bar Size and Theoretical Weight | |||||||
|---|---|---|---|---|---|---|---|
| Weight (kilogram/m) | Size (milimeter) | Weight (kilogram/m) | Size (milimeter) | Weight (kilogram/m) | Size (milimeter) | Weight (kilogram/m) | Size (milimeter) |
| 1.0784 | 15 Γ 15 | 0.0071 | 3 Γ 3 | 28.0548 | 60 Γ 60 | 7.0137 | 30 Γ 30 |
| 2.003 | 16 Γ 16 | 0.0127 | 4 Γ 4 | 31.0474 | 63 Γ 63 | 8.012 | 32 Γ 32 |
| 2.0292 | 17 Γ 17 | 0.0198 | 5 Γ 5 | 35.0598 | 67 Γ 67 | 9.0167 | 34 Γ 34 |
| 2.0569 | 18 Γ 18 | 0.0285 | 6 Γ 6 | 38.0857 | 70 Γ 70 | 9.0714 | 35 Γ 35 |
| 2.0863 | 19 Γ 19 | 0.0389 | 7 Γ 7 | 44.0606 | 75 Γ 75 | 11.0451 | 38 Γ 38 |
| 3.0172 | 20 Γ 20 | 0.0508 | 8 Γ 8 | 50.0752 | 80 Γ 80 | 12.0688 | 40 Γ 40 |
| 3.0497 | 21 Γ 21 | 0.0642 | 9 Γ 9 | 52.0294 | 85 Γ 85 | 13.0989 | 42 Γ 42 |
| 3.0838 | 22 Γ 22 | 0.0793 | 10 Γ 10 | 64.0233 | 90 Γ 90 | 16.0058 | 45 Γ 45 |
| 4.0568 | 24 Γ 24 | 0.096 | 11 Γ 11 | 71.0568 | 95 Γ 95 | 18.0271 | 48 Γ 48 |
| 4.0956 | 25 Γ 25 | 1.0142 | 12 Γ 12 | 79.03 | 100 Γ 100 | 19.0825 | 50 Γ 50 |
| 5.0361 | 26 Γ 26 | 1.034 | 13 Γ 13 | 22.0275 | 53 Γ 53 | ||
| 6.0217 | 28 Γ 28 | 1.0554 | 14 Γ 14 | 24.0868 | 56 Γ 56 | ||
| Siding Γ Siding Γ 0.000793 = Weight (kg) per meter | |||||||




Testing and Packing
Our team guarantees the best quality of Stainless Steel Square Bar. By conducting tests like Mill Test, Positive Material Identification (PMI) and National Accreditation Board for Testing and Calibration Laboratories (NABL) tests. We also offer both the Destructive and Non Destructive Test Reports. Then The bars packed in wooden boxes and bubble wraps as well as plastic covers. To avoid any case of damage.
Delivery and Marking
We ensure that the SS Square Bar ASTM Standards are followed, marking the bars as per standards and customer specifications for easy identification. We also include test certificates and analysis reports for each of the products. We deliver our bars within the shortest time possible to ensure the customer receives quality products as desired. We ensure that our products meet the shipping standards to avoid any harm that may be caused to the products when in transit.







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