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Girgaon, Mumbai - 400004
Stainless Steel Square Tube Manufacturer in India
Kamal Steels is a Stainless Steel Square Tube Manufacturer in India, supplying stainless steel square tubes for fabrication, construction, architectural, handrail, furniture, industrial and commercial applications. Our range includes square stainless steel tubes in commonly required grades, sizes, wall thicknesses and finishes.
Stainless Steel Square Tubes are manufactured with a square cross-section and are available in different outside dimensions and wall thicknesses. They are selected where dimensional consistency, corrosion resistance, clean appearance and structural performance are required.
We supply stainless steel square tubing in grades including 304, 304L, 316, 316L, 310S, 321, 347 and 904L, subject to size, specification and availability. Tubes can be supplied in mill finish, polished and other required surface finishes depending on the application.
For buyers looking for stainless steel square tube manufacturers or suppliers in India, Kamal Steels provides material according to the required grade, dimensions, wall thickness, finish and applicable specification.
What Is a Stainless Steel Square Tube?
A Stainless Steel Square Tube is a hollow tubular product with a square cross-section manufactured from stainless steel. It has four equal sides and is available with different outside dimensions and wall thicknesses.
Stainless steel square tubes combine the corrosion resistance of stainless steel with the geometry required for fabrication, structural framing, handrails, architectural work and other applications. The square profile also provides flat surfaces that are convenient for joining, mounting and fabrication.
The suitable grade and wall thickness depend on the service environment, mechanical requirements, dimensions, finish and intended application.
Stainless Steel Square Tube Sizes
Stainless Steel Square Tube Sizes are specified by the outside width and wall thickness. Common sizes are available in both inch and metric dimensions, although the actual range depends on the manufacturing process, grade and specification.
Commonly requested sizes include 1/2 x 1/2 inch, 1 x 1 inch, 2 x 2 inch and metric sizes such as 20mm, 25mm, 30mm, 40mm and 50mm. Larger square tubes can also be supplied for structural and industrial requirements.
Size selection should consider the required strength, fabrication method, load, available space and wall thickness rather than outside dimensions alone.
Stainless Steel Square Tube Dimensions
Stainless steel square tube dimensions are generally described by outside width, outside height and wall thickness. Since a square tube has equal outside width and height, a size such as 25 × 25 mm represents the outside dimensions of the tube.
| Dimension Format | Meaning |
|---|---|
| 20 × 20 mm | 20 mm outside width × 20 mm outside height |
| 25 × 25 mm | 25 mm outside width × 25 mm outside height |
| 30 × 30 mm | 30 mm outside width × 30 mm outside height |
| 40 × 40 mm | 40 mm outside width × 40 mm outside height |
| 50 × 50 mm | 50 mm outside width × 50 mm outside height |
The wall thickness is specified separately, for example, 25 × 25 × 1.5 mm. The actual available combinations depend on the required grade, manufacturing specification and production capability.
Standard Stainless Steel Square Tube Sizes
There is no single universal size that applies to every stainless steel square tube application. Standard sizes vary according to the applicable dimensional specification, manufacturing method and market requirements.
| Common Size | Equivalent Description | Typical Applications |
|---|---|---|
| 1/2 × 1/2 inch | Small square tube | Light fabrication and architectural work |
| 1 × 1 inch | Approx. 25 × 25 mm | Handrails, frames and fabrication |
| 2 × 2 inch | Approx. 50 × 50 mm | Frames, supports and structural fabrication |
| 20 × 20 mm | Metric square tube | Fabrication and architectural applications |
| 25 × 25 mm | Metric square tube | Furniture, railings and fabrication |
| 50 × 50 mm | Metric square tube | Frames and structural applications |
Stainless Steel Square Tube Weight
The stainless steel square tube weight depends mainly on the outside dimensions, wall thickness, material density and tube length. A larger cross-section or thicker wall generally results in greater weight per metre.
Weight is important when estimating material requirements, transportation loads, fabrication quantities and project costs.
For theoretical calculations, the cross-sectional area of a square tube can be determined from its outside dimensions and wall thickness. The material density is then used to estimate the weight per unit length.
Stainless Steel Square Tube Weight Chart
A stainless steel square tube weight chart provides approximate weight values based on tube dimensions and wall thickness. The following example is useful for preliminary material estimation.
| Square Tube Size | Wall Thickness | Approx. Weight* |
|---|---|---|
| 20 × 20 mm | 1.5 mm | Approx. 0.87 kg/m |
| 25 × 25 mm | 1.5 mm | Approx. 1.10 kg/m |
| 30 × 30 mm | 1.5 mm | Approx. 1.33 kg/m |
| 40 × 40 mm | 1.5 mm | Approx. 1.81 kg/m |
| 50 × 50 mm | 1.5 mm | Approx. 2.28 kg/m |
*Approximate theoretical values based on stainless steel density. Actual weight can vary according to grade, dimensions, corner radius and manufacturing tolerances.
Stainless Steel Square Tube Weight Calculator
A stainless steel square tube weight calculator can estimate theoretical weight when the outside dimensions and wall thickness are known.
For a square tube, the approximate cross-sectional area can be calculated using:
Area = B² − (B − 2t)²
Where:
- B = Outside width of the square tube
- t = Wall thickness
Theoretical weight per metre can then be estimated from the cross-sectional area and density of the stainless steel grade.
For accurate purchasing calculations, the supplied dimensional specification and material grade should always be used rather than relying only on a theoretical calculation.
Stainless Steel Square Tube Strength
Stainless steel square tube strength depends on the material grade, wall thickness, outside dimensions, unsupported length, loading condition and method of installation.
The square profile provides good resistance to bending and provides flat surfaces for fabrication and connections. Increasing wall thickness generally increases the section's resistance to bending and compression.
For structural applications, the tube should be selected according to the applicable design requirements rather than judging strength from dimensions alone.
Stainless Steel Square Tube for Handrails
Stainless steel square tube handrails are widely used in commercial buildings, residential projects, staircases, balconies, walkways and architectural installations.
Square tubing provides a clean geometric appearance and can be fabricated into railings, frames and support structures. Stainless steel grades such as 304 and 316 are commonly selected depending on the environment and corrosion resistance requirements.
Grade 316 is particularly useful where increased resistance to chloride-containing or marine environments is required.
Stainless Steel Square Tube Specifications
Stainless steel square tube specifications define the material grade, dimensions, wall thickness, manufacturing requirements, surface finish, tolerances and applicable testing requirements.
| Specification | Details |
|---|---|
| Material | Stainless Steel |
| Shape | Square |
| Grades | 304, 304L, 316, 316L, 310S, 321, 347, 904L |
| Dimensions | Metric and inch sizes |
| Wall Thickness | According to required size and specification |
| Finish | Mill finish, polished and other specified finishes |
| Length | Standard or cut length as required |
| Documentation | Material test certificates and inspection documents where specified |
Stainless Steel Square Tube Grades
Stainless steel square tubing is available in different grades to meet corrosion resistance, temperature, fabrication and service requirements.
304 Stainless Steel Square Tube
304 stainless steel square tube is widely used for general fabrication, architectural work, furniture, handrails, frames and commercial applications. It provides good corrosion resistance and formability for many environments.
316 Stainless Steel Square Tube
316 stainless steel square tube offers higher resistance to chloride-containing environments than 304 stainless steel. It is commonly considered for marine, chemical, coastal and other applications where additional corrosion resistance is required.
310S Stainless Steel Square Tube
310S stainless steel square tube is used for applications involving elevated temperatures and heat-resistant service requirements. Its suitability depends on the operating temperature and service conditions.
Other Stainless Steel Grades
Depending on the application, stainless steel square tubes can also be supplied in grades such as 304L, 316L, 321, 347 and 904L, subject to size, specification and availability.
Polished Stainless Steel Square Tube
Polished stainless steel square tube is selected when surface appearance and a smooth decorative finish are important. Polished square tubing is commonly used for architectural features, handrails, furniture, interior installations and decorative fabrication.
The required finish can be specified according to the application and fabrication requirements. Surface finish selection should consider the intended appearance, cleaning requirements and service environment.
Stainless Steel Square Tube Price
Stainless steel square tube price varies according to the stainless steel grade, outside dimensions, wall thickness, surface finish, quantity, length and current raw material market conditions.
For example, the price of a 304 stainless steel square tube can differ from a 316 or 310S square tube because the alloy composition and material cost are different. Similarly, larger dimensions and heavier wall thicknesses generally require more material per metre.
For an accurate quotation, buyers should specify the required grade, size, wall thickness, finish, quantity and delivery requirements.
Stainless Steel Square Tube Applications
Stainless steel square tubes are used across fabrication, construction, architectural and industrial applications where corrosion resistance, dimensional consistency and a clean surface are required.
- Handrails and stair railings
- Architectural structures
- Balcony and railing systems
- Furniture and frames
- Commercial building fabrication
- Industrial equipment frames
- Construction and infrastructure
- Decorative fabrication
- Food and commercial installations
- Chemical and industrial environments
Stainless Steel Square Tube Manufacturer & Supplier
Kamal Steels supplies stainless steel square tubes in commonly required grades, dimensions, wall thicknesses and finishes for industrial, commercial and fabrication requirements.
As a stainless steel square tube manufacturer and stockist in India, we can support requirements involving standard sizes as well as project-specific dimensions, subject to manufacturing capability and availability. Material can be supplied with applicable documentation and testing records according to the order specification.
For enquiries, provide the required grade, square tube size, wall thickness, finish, quantity and length so that the appropriate material can be quoted.
Conclusion
Stainless steel square tubes provide a practical combination of corrosion resistance, dimensional stability, fabrication flexibility and clean appearance. They are available in different sizes, wall thicknesses, grades and surface finishes for applications ranging from handrails and architectural fabrication to industrial structures.
Kamal Steels supplies stainless steel square tubes in grades such as 304, 316 and 310S, along with other grades according to the required specification and availability. Buyers can select the appropriate tube based on dimensions, wall thickness, grade, finish and application requirements.
Stainless Steel Square Tube FAQs
A stainless steel square tube is a hollow tubular product with a square cross-section manufactured from stainless steel. It is available in different outside dimensions, wall thicknesses, grades and finishes.
Stainless steel square tubes are available in different metric and inch sizes, including commonly requested sizes such as 20 x 20 mm, 25 x 25 mm, 30 x 30 mm, 40 x 40 mm, 50 x 50 mm, 1 x 1 inch and 2 x 2 inch, subject to grade, specification and availability.
Common stainless steel square tube grades include 304, 304L, 316, 316L and 310S. Other grades such as 321, 347 and 904L can also be supplied according to the required specification and availability.
304 stainless steel square tubes are widely used for general fabrication and architectural applications, while 316 stainless steel square tubes provide higher resistance to chloride-containing environments and are often selected for marine, coastal and chemical applications.
Stainless steel square tube weight is estimated from the outside dimensions, wall thickness and density of the stainless steel grade. The theoretical weight can then be expressed as weight per metre.
Stainless steel square tubes are used for handrails, stair railings, architectural structures, furniture, frames, commercial fabrication, industrial structures, construction and decorative applications.
Yes. Polished stainless steel square tubes can be supplied for applications where a smooth and decorative surface finish is required, including handrails, architectural work, furniture and interior fabrication.
Stainless steel square tube price depends on the grade, outside dimensions, wall thickness, surface finish, quantity, length and current material market conditions.
Kamal Steels manufactures and supplies stainless steel square tubes in India in commonly required grades, sizes, wall thicknesses and finishes, subject to manufacturing capability and availability.