Kanzen Tetsu supplies stainless steel square hollow sections for ornamental, architectural, mechanical and general fabrication applications in Malaysia.
Also known as stainless steel square tubes or stainless steel SHS, these tubes feature four equal sides with a clean and uniform profile. Their flat surfaces make them suitable for fabrication, joining and installation, especially for projects where both appearance and durability are important.
Our stainless steel square hollow sections conform to ASTM A554 and are available in 304 and 316 stainless steel grades. Customers can choose from a range of sizes, wall thicknesses and surface finishes to suit different project requirements.
What Is a Stainless Steel Square Hollow Section?
A stainless steel square hollow section is a hollow stainless steel tube with four equal sides and a square cross section.
It is widely used in ornamental, architectural and mechanical applications because it provides a clean geometric appearance, good corrosion resistance and reliable durability.
The flat surfaces also make it easier to cut, weld, join and align during fabrication. This makes stainless steel square hollow sections suitable for furniture frames, railings, partitions, architectural features, commercial fittings and customised stainless steel works.
Stainless Steel Square Hollow Section Specifications
|
Specification |
Details |
|
Product Type |
Welded austenitic stainless steel mechanical and ornamental square tubing |
|
Standard |
Conforming to ASTM A554 |
|
Material |
304-2B and 316-2B |
|
Size Range |
1/2″ x 1/2″ or 12.7mm x 12.7mm to 4″ x 4″ or 101.6mm x 101.6mm |
|
Thickness Options |
1.0mm, 1.2mm, 1.5mm, 2.0mm and 3.0mm |
|
Surface Finishes |
Mill Finish, Hairline #180 and #400 Grit |
The numbers 304 and 316 refer to the stainless steel grades, while 2B refers to the base surface finish of the stainless steel material.
Product availability may vary according to the selected grade, size, wall thickness and surface finish.
Available Stainless Steel Grades
Kanzen Tetsu stainless steel square hollow sections are available in 304 and 316 stainless steel. The right grade depends on the application, installation environment, and level of corrosion resistance required.
1. 304 Stainless Steel Square Hollow Section
304 stainless steel square hollow section is commonly used for general ornamental, architectural and fabrication applications.
It is suitable for many indoor and covered areas, including furniture frames, partitions, commercial fittings, handrails, railings and decorative stainless steel structures.
Grade 304 is widely selected because it offers good corrosion resistance, durability and workability for many standard applications.
2. 316 Stainless Steel Square Hollow Section
316 stainless steel square hollow section is suitable for applications that require stronger corrosion resistance.
It is commonly considered for coastal areas, outdoor environments, high moisture locations and projects exposed to salt or chlorides.
Grade 316 is often selected when the installation environment is more demanding and better corrosion resistance is required compared with grade 304.
For a detailed explanation of both grades, read Kanzen Tetsu’s Stainless Steel 304 vs 316 Difference Guide.
ASTM A554 Stainless Steel Square Hollow Section Dimension and Weight Chart
The table below shows the nominal outside dimensions, nominal wall thicknesses and weight per metre for Kanzen Tetsu stainless steel square hollow sections.
The outside dimensions are measured across the flat sides of the square tube.
| SQUARE HOLLOW SECTION (SHS) | ||||||
|---|---|---|---|---|---|---|
| Nominal Outside Dimension Across Flats |
Weight (kg/m) | |||||
| Nominal Wall Thickness (mm) | ||||||
| (inch) | (mm) | 1.2 | 1.5 | 2.0 | 3.0 | |
| ½ x ½ | 12.7 x 12.7 | 0.436 | 0.531 | 0.677 | – | |
| ⅝ x ⅝ | 15.9 x 15.9 | 0.558 | 0.683 | 0.880 | – | |
| ¾ x ¾ | 19.1 x 19.1 | 0.680 | 0.836 | 1.083 | – | |
| ⅞ x ⅞ | 22.2 x 22.2 | 0.798 | 0.983 | 1.280 | – | |
| 1 x 1 | 25.4 x 25.4 | 0.919 | 1.135 | 1.483 | – | |
| 1¼ x 1¼ | 31.8 x 31.8 | 1.163 | 1.440 | 1.889 | – | |
| 1½ x 1½ | 38.1 x 38.1 | 1.403 | 1.740 | 2.288 | – | |
| 2 x 2 | 50.8 x 50.8 | 1.886 | 2.344 | 3.094 | – | |
| 3 x 3 | 76.2 x 76.2 | 2.853 | 3.552 | 4.705 | 6.963 | |
| 4 x 4 | 101.6 x 101.6 | – | – | 6.317 | 9.380 | |
The above weight – list is applicable for 304 grade only
Available Finishes for Stainless Steel Square Hollow Section
Kanzen Tetsu supplies stainless steel square hollow sections in several surface finishes to meet different visual and fabrication requirements.
1. Mill Finish
Mill Finish is the basic surface condition produced during manufacturing.
It is suitable for applications where surface appearance is not the main priority or where further polishing, fabrication or surface treatment will be carried out.
2. Hairline #180
Hairline #180 provides a clean brushed appearance with consistent directional lines.
It is commonly used for visible architectural and decorative applications such as furniture frames, railings, partitions, retail fittings and commercial interiors.
3. #400 Grit
#400 Grit provides a smoother and brighter surface compared with Hairline #180.
It is suitable for applications where a more polished stainless steel appearance is required, including architectural features, decorative frames, display structures and visible commercial fittings.
Common Applications of Stainless Steel Square Hollow Section
Stainless steel square hollow sections are used across residential, commercial and industrial fabrication projects.
| APPLICATION | DESCRIPTION |
|---|---|
| Handrails and railings | Used for staircases, balconies, walkways and safety barriers |
| Furniture fabrication | Suitable for tables, chairs, benches, shelving and furniture frames |
| Architectural features | Used for partitions, frames, screens, posts and building details |
| Commercial fittings | Suitable for retail displays, counters, racks, signs and shop fittings |
| Equipment frames | Used for equipment supports, surrounds and fabricated frames |
| Decorative works | Suitable for geometric structures and ornamental stainless steel features |
| General fabrication | Used for customised stainless steel components and fabrication projects |
The most suitable size, grade, thickness and finish will depend on the project design, installation environment and fabrication requirements.
How to Select the Right Stainless Steel Square Hollow Section
When selecting a stainless steel square hollow section, consider the following factors.
1. Stainless Steel Grade
Choose 304 stainless steel for many general indoor, covered and standard fabrication applications.
Choose 316 stainless steel when stronger corrosion resistance is required, particularly for coastal, outdoor or high moisture environments.
2. Outside Dimensions
The outside dimensions determine the overall size and appearance of the square tube.
Kanzen Tetsu supplies sizes ranging from 12.7mm x 12.7mm to 101.6mm x 101.6mm.
3. Wall Thickness
Wall thickness affects the weight, stiffness and fabrication requirements of the square hollow section.
The appropriate thickness should be selected based on the intended application and project requirements.
For load bearing or safety related applications, the specifications should be reviewed by a qualified engineer.
4. Surface Finish
Select Mill Finish when appearance is less important or further processing is required.
Select Hairline #180 for a brushed stainless steel appearance.
Select #400 Grit for a smoother and brighter polished finish.
Square Hollow Section VS Rectangular Hollow Section VS Round Tube
Stainless steel hollow sections and tubes are available in different profiles to suit different design and fabrication needs.
| PROFILE | SHAPE AND FEATURES | COMMON APPLICATIONS |
|---|---|---|
| Square Hollow Section | Four equal sides with a balanced and symmetrical profile. Its flat surfaces make it suitable for joining, alignment and geometric designs. | Posts, frames, furniture, partitions, commercial fittings and architectural features |
| Rectangular Hollow Section | Two longer sides and two shorter sides, providing a wider flat surface and a more directional profile. | Frames, supports, furniture, partitions, shelving and applications requiring a lower or wider profile |
| Round Tube | A smooth circular profile without flat sides, offering a softer and more curved appearance. | Handrails, railings, furniture, curved features, decorative works and architectural details |
The right profile depends on the project design, available space, fabrication method and preferred appearance.
Read our Stainless Steel Rectangular Hollow Section Guide and Stainless Steel Round Tube Guide to compare the available specifications, sizes, finishes and applications.
Why Choose Kanzen Tetsu Stainless Steel Square Hollow Section?
Kanzen Tetsu supplies ASTM A554 stainless steel square hollow sections in 304 and 316 grades.
Our range includes multiple sizes, wall thicknesses and surface finishes for ornamental, architectural, mechanical and general fabrication applications.
Customers can select the required specifications based on the application, installation environment, corrosion resistance requirement and preferred appearance.
Kanzen Tetsu also supplies stainless steel round tubes and rectangular hollow sections for projects that require different tube profiles.
Get the Right Stainless Steel Square Hollow Section for Your Project
Kanzen Tetsu supplies ASTM A554 stainless steel square hollow sections for ornamental, architectural, mechanical and general fabrication applications in Malaysia.
Available sizes range from 1/2″ x 1/2″ to 4″ x 4″, with wall thicknesses from 1.0mm to 3.0mm. Available finishes include Mill Finish, Hairline #180 and #400 Grit.
Download our Welded Austenitic Stainless Steel Mechanical & Ornamental Tubes catalogue to view the full specification details, or contact Kanzen Tetsu to discuss your required grade, size, thickness, finish and quantity.
View Brochure Contact usFrequently Asked Questions
1. What is a stainless steel square hollow section?
A stainless steel square hollow section is a hollow stainless steel tube with four equal sides and a square cross section. It is also commonly known as stainless steel SHS or stainless steel square tube.
2. What standard does Kanzen Tetsu stainless steel square hollow section conform to?
Kanzen Tetsu stainless steel square hollow sections conform to ASTM A554, a standard for welded stainless steel mechanical and ornamental tubing.
3. What grades are available?
Kanzen Tetsu stainless steel square hollow sections are available in 304 and 316 stainless steel grades.
4. What sizes are available?
Available sizes range from 1/2″ x 1/2″ or 12.7mm x 12.7mm to 4″ x 4″ or 101.6mm x 101.6mm.
5. What wall thicknesses are available?
Available wall thicknesses include 1.0mm, 1.2mm, 1.5mm, 2.0mm and 3.0mm. Availability may vary according to the selected size and stainless steel grade.
6. What finishes are available?
Available finishes include Mill Finish, Hairline #180 and #400 Grit.
7. What is 304 stainless steel square hollow section commonly used for?
304 stainless steel square hollow section is commonly used for furniture, partitions, railings, architectural features, commercial fittings and general fabrication applications.
8. What is 316 stainless steel square hollow section commonly used for?
316 stainless steel square hollow section is commonly considered for coastal areas, outdoor environments, high moisture locations and applications that require stronger corrosion resistance.