Hot Rolled Square Bars in S275JR and S355J2+N
Product Description
A solid square bar, also known as a square steel bar or hot rolled square bar, is a steel product with a fully solid square cross-section. Unlike a square hollow section (SHS), it has no internal cavity. Its geometry facilitates cutting, welding, machining and the manufacture of parts, supports, frames and auxiliary components.
Verified Technical Characteristics
| Characteristic | Specification |
|---|---|
| Product designation | Hot Rolled Square Bars |
| Cross-section | Solid square |
| Manufacturing process | Hot rolled |
| Steel grades | S275JR / S355J2+N |
| Data included | Nominal side, cross-sectional area and unit weight |
| Listed size range | 3 mm to 800 mm |
| Cross-sectional area | cm² |
| Unit weight | kg/m |
Important notice: The 3-800 mm range corresponds to the values listed in the technical data sheet. It does not imply immediate availability or stock in every dimension. Size, grade, length, tolerances and documentation must be confirmed for each inquiry.
Typical Applications
- Steel construction and auxiliary structural fabrication.
- Frames, supports, reinforcements, anchors and connecting elements.
- Machinery, tools, fixtures and machined parts.
- Metalworking, platework and welded assemblies.
- Industrial and energy projects.
Advantages of Supply from SUALSA
- Extensive range of steel products and merchant bars.
- Order preparation according to the construction stage, project or manufacturing phase.
- Cutting and additional processing services, subject to size and requirements.
- Personalised technical and commercial support.
- National and international supply.
Dimensions, Cross-Section and Weight per Meter
The following values have been transcribed from the SUALSA technical data sheet. The dimension represents the nominal side of the square bar. Weight is expressed in kilograms per linear meter.
| Size (mm) | Cross-section (cm²) | Weight (kg/m) |
|---|---|---|
| 3 × 3 | 0.09 | 0.071 |
| 3.5 × 3.5 | 0.123 | 0.096 |
| 4 × 4 | 0.16 | 0.126 |
| 4.5 × 4.5 | 0.203 | 0.159 |
| 5 × 5 | 0.25 | 0.196 |
| 5.5 × 5.5 | 0.303 | 0.237 |
| 6 × 6 | 0.36 | 0.283 |
| 7 × 7 | 0.49 | 0.385 |
| 8 × 8 | 0.64 | 0.502 |
| 9 × 9 | 0.81 | 0.636 |
| 10 × 10 | 1 | 0.785 |
| 11 × 11 | 1.21 | 0.950 |
| 12 × 12 | 1.44 | 1.130 |
| 13 × 13 | 1.69 | 1.327 |
| 14 × 14 | 1.96 | 1.539 |
| 15 × 15 | 2.25 | 1.766 |
| 16 × 16 | 2.56 | 2.010 |
| 17 × 17 | 2.89 | 2.269 |
| 18 × 18 | 3.24 | 2.543 |
| 19 × 19 | 3.61 | 2.834 |
| 20 × 20 | 4 | 3.140 |
| 21 × 21 | 4.41 | 3.462 |
| 22 × 22 | 4.84 | 3.799 |
| 23 × 23 | 5.29 | 4.153 |
| 24 × 24 | 5.76 | 4.522 |
| 25 × 25 | 6.25 | 4.906 |
| 26 × 26 | 6.76 | 5.307 |
| 27 × 27 | 7.29 | 5.723 |
| 28 × 28 | 7.84 | 6.154 |
| 29 × 29 | 8.41 | 6.602 |
| 30 × 30 | 9 | 7.065 |
| 32 × 32 | 10.24 | 8.038 |
| 34 × 34 | 11.56 | 9.075 |
| 36 × 36 | 12.96 | 10.174 |
| 38 × 38 | 14.44 | 11.335 |
| 40 × 40 | 16 | 12.560 |
| 41 × 41 | 16.81 | 13.196 |
| 42 × 42 | 17.64 | 13.847 |
| 44 × 44 | 19.36 | 15.198 |
| 46 × 46 | 21.16 | 16.611 |
| 48 × 48 | 23.04 | 18.086 |
| 50 × 50 | 25 | 19.625 |
| 52 × 52 | 27.04 | 21.226 |
| 54 × 54 | 29.16 | 22.891 |
| 55 × 55 | 30.25 | 23.746 |
| 56 × 56 | 31.36 | 24.618 |
| 58 × 58 | 33.64 | 26.407 |
| 60 × 60 | 36 | 28.260 |
| 62 × 62 | 38.44 | 30.175 |
| 64 × 64 | 40.96 | 32.154 |
| 65 × 65 | 42.25 | 33.166 |
| 66 × 66 | 43.56 | 34.195 |
| 68 × 68 | 46.24 | 36.298 |
| 70 × 70 | 49 | 38.465 |
| 72 × 72 | 51.84 | 40.694 |
| 74 × 74 | 54.76 | 42.987 |
| 75 × 75 | 56.25 | 44.156 |
| 76 × 76 | 57.76 | 45.342 |
| 78 × 78 | 60.84 | 47.759 |
| 80 × 80 | 64 | 50.240 |
| 85 × 85 | 72.25 | 56.716 |
| 90 × 90 | 81 | 63.585 |
| 95 × 95 | 90.25 | 70.846 |
| 100 × 100 | 100 | 78.500 |
| 120 × 120 | 144 | 113.040 |
| 150 × 150 | 225 | 176.630 |
| 200 × 200 | 400 | 314.000 |
| 250 × 250 | 625 | 490.630 |
| 300 × 300 | 900 | 706.500 |
| 400 × 400 | 1600 | 1256.000 |
| 500 × 500 | 2500 | 1962.500 |
| 600 × 600 | 3600 | 2826.000 |
| 700 × 700 | 4900 | 3846.500 |
| 800 × 800 | 6400 | 5024.000 |
Note: The technical data sheet contains additional intermediate values above 100 mm. For web publication, the complete table can be included in HTML while retaining the technical data sheet as a downloadable document.
Indicative Weight Calculation
For a solid square steel bar, the theoretical weight per meter can be estimated using the following formula:
Weight (kg/m) = side² (mm) × 0.00785
Example for 20 × 20 mm: 20 × 20 × 0.00785 = 3.14 kg/m. The result matches the value in the technical sheet. The formula uses a reference density of 7,850 kg/m³ and provides a theoretical weight.
Steel Grades Included in the Sheet
S275JR
Structural steel grade specified in the technical sheet. Applicable properties must be verified against the relevant product standard and the documentation for the supplied material.
S355J2+N
Structural steel grade specified in the technical sheet, with J2 impact designation and +N delivery condition. Conformity must be verified through the manufacturer documentation and the corresponding inspection certificate.
Documentation and Certificates
The technical data sheet does not specify a particular inspection certificate type. When an order requires an inspection certificate, traceability or other documentation, it must be requested expressly and its availability confirmed before supply.
Frequently Asked Questions
What is the difference between a solid square bar and a square hollow section?
A solid square bar has a completely solid cross-section, whereas a square hollow section has an internal cavity.
What is the weight of a 20 × 20 mm solid square bar?
The technical sheet indicates 3.14 kg/m.
What is the weight of a 50 × 50 mm square bar?
The technical sheet indicates 19.625 kg/m.
What is the weight of a 100 × 100 mm square bar?
The technical sheet indicates 78.5 kg/m.
Which steel grades are listed in the sheet?
S275JR and S355J2+N.
Does the range up to 800 mm mean that every size is in stock?
No. The technical data sheet contains a technical table up to 800 mm, but commercial availability must be confirmed for each dimension.
Can the bars be supplied cut to length?
SUALSA can assess cutting and material preparation according to the size, quantity and order requirements.
Quick Information for Search Engines and AI Assistants
| Field | Content |
|---|---|
| Product | Hot rolled solid steel square bar |
| Technical designation | Hot Rolled Square Bars |
| Synonyms | Square steel bar, hot rolled square bar, solid square section, square bar |
| Steel grades | S275JR and S355J2+N |
| Listed range | Nominal side from 3 mm to 800 mm |
| Technical data | Side, cross-sectional area and theoretical weight per meter |
| Applications | Steel construction, industry, machinery, metalworking and machining |
| Supplier | SUALSA, steel service center |
Call to Action
Please specify size, steel grade, length, quantity, delivery destination and required documentation.
