Kanzen Tetsu supplies stainless steel rectangular hollow sections for ornamental, architectural, mechanical and general fabrication applications in Malaysia.
Also known as stainless steel rectangular tubes or stainless steel RHS, these tubes feature two longer sides and two shorter sides. Their flat surfaces and rectangular profile make them suitable for projects that require a wider surface, lower profile or specific directional design.
Our stainless steel rectangular 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 Rectangular Hollow Section?
A stainless steel rectangular hollow section is a hollow stainless steel tube with a rectangular cross section.
It is widely used in ornamental, architectural and mechanical applications because it offers a clean appearance, good corrosion resistance and reliable durability.
Its wider flat surfaces make it suitable for frames, supports, partitions, shelving, furniture, commercial fittings and customised stainless steel fabrication.
Stainless Steel Rectangular Hollow Section Specifications
|
Specification |
Details |
|
Product Type |
Welded austenitic stainless steel mechanical and ornamental rectangular tubing |
|
Standard |
Conforming to ASTM A554 |
|
Material |
304-2B and 316-2B |
|
Available Sizes |
1″ x 1/2″, 1 1/2″ x 3/4″, 2″ x 1″, 3″ x 1 3/4″ and 4″ x 2″ |
|
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 rectangular 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 Rectangular Hollow Section
304 stainless steel rectangular 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, shelving, 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 Rectangular Hollow Section
316 stainless steel rectangular 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 Rectangular 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 rectangular hollow sections.
The outside dimensions are measured across the flat sides of the rectangular tube.
| RECTANGULAR HOLLOW SECTION (RHS) | ||||||
|---|---|---|---|---|---|---|
| Nominal Outside Dimension Across Flats | Weight (kg/m) Nominal Wall Thickness (mm) | |||||
| (inch) | (mm) | 1.0 | 1.2 | 1.5 | 2.0 | 3.0 |
| 1 x ½ | 25.4 x 12.7 | 0.571 | 0.678 | 0.833 | – | – |
| 1½ x ¾ | 38.1 x 19.1 | 0.874 | 1.041 | 1.288 | – | – |
| 2 x 1 | 50.8 x 25.4 | 1.175 | 1.403 | 1.740 | – | – |
| 3 x 1¾ | 76.2 x 44.5 | – | 2.250 | 2.798 | 3.700 | 5.455 |
| 4 x 2 | 101.6 x 50.8 | – | 2.853 | 3.552 | 4.705 | 6.964 |
Available Finishes for Stainless Steel Rectangular Hollow Section
Kanzen Tetsu supplies stainless steel rectangular 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, partitions, shelving, 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 Rectangular Hollow Section
Stainless steel rectangular hollow sections are used across residential, commercial and industrial fabrication projects.
| APPLICATION | DESCRIPTION |
|---|---|
| Frames and supports | Used for fabricated frames, supports and structures requiring a wider flat surface |
| Furniture fabrication | Suitable for tables, benches, shelving and furniture frames |
| Architectural features | Used for partitions, screens, frames and visible building details |
| Commercial fittings | Suitable for retail displays, counters, racks, signs and shop fittings |
| Shelving and storage | Used for shelving frames, storage systems and display structures |
| Equipment frames | Suitable for equipment supports, surrounds and fabricated frames |
| 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 Rectangular Hollow Section
When selecting a stainless steel rectangular 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 width, height and appearance of the rectangular tube.
Kanzen Tetsu supplies sizes ranging from 25.4mm x 12.7mm to 101.6mm x 50.8mm.
The longer side provides a wider flat surface, while the shorter side creates a lower profile compared with a square hollow section of a similar width.
3. Wall Thickness
Wall thickness affects the weight, stiffness and fabrication requirements of the rectangular 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.
Rectangular Hollow Section VS Square 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 |
|---|---|---|
| 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 |
| Square Hollow Section | Four equal sides with a balanced and symmetrical profile. Its flat surfaces are suitable for joining, alignment and geometric designs | Posts, frames, furniture, partitions, commercial fittings and architectural features |
| 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 Square Hollow Section Guide and Stainless Steel Round Tube Guide to compare the available specifications, sizes, finishes and applications.
Why Choose Kanzen Tetsu Stainless Steel Rectangular Hollow Section?
Kanzen Tetsu supplies ASTM A554 stainless steel rectangular 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 square hollow sections and round tubes for projects that require different tube profiles.
Get the Right Stainless Steel Rectangular Hollow Section for Your Project
Kanzen Tetsu supplies ASTM A554 stainless steel rectangular hollow sections for ornamental, architectural, mechanical and general fabrication applications in Malaysia.
Available sizes range from 1″ x 1/2″ to 4″ x 2″, 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 rectangular hollow section?
A stainless steel rectangular hollow section is a hollow stainless steel tube with two longer sides and two shorter sides. It is also commonly known as stainless steel RHS or stainless steel rectangular tube.
2. What standard does Kanzen Tetsu stainless steel rectangular hollow section conform to?
Kanzen Tetsu stainless steel rectangular hollow sections conform to ASTM A554, a standard for welded stainless steel mechanical and ornamental tubing.
3. What stainless steel grades are available?
Kanzen Tetsu stainless steel rectangular hollow sections are available in 304 and 316 stainless steel grades.
Grade 304 is suitable for many general applications, while grade 316 offers stronger corrosion resistance for coastal, outdoor and high moisture environments.
4. What sizes are available?
Available sizes include 1″ x 1/2″, 1 1/2″ x 3/4″, 2″ x 1″, 3″ x 1 3/4″ and 4″ x 2″.
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.
The right finish depends on the required appearance and whether further surface processing will be carried out.
7. What is 304 stainless steel rectangular hollow section commonly used for?
304 stainless steel rectangular hollow section is commonly used for furniture, shelving, partitions, frames, architectural features, commercial fittings and general fabrication applications.
8. What is 316 stainless steel rectangular hollow section commonly used for?
316 stainless steel rectangular hollow section is commonly considered for coastal areas, outdoor environments, high moisture locations and applications requiring stronger corrosion resistance.