Hot rolled solid round bars
Product Description
A plain round bar, also known as a solid round steel bar, hot rolled round bar or round solid bar, is a steel product with a solid circular cross-section and a smooth surface without ribs. It is used to manufacture shafts, pins, bushes, anchors, machined parts, welded elements and industrial components.
Verified Technical Characteristics
| Characteristic | Specification |
|---|---|
| Designation | Hot rolled round bars / Round solid bars |
| Cross-section | Solid circular |
| Manufacturing process | Hot rolled |
| Standard stated in the technical sheet | UNE 36-541-76 |
| Grades stated in the technical data sheet | S275JR / S355J2+N |
| Range stated on the website | Ø3 mm to Ø250 mm |
| Verified data | Nominal diameter, cross-sectional area and unit weight |
Typical Applications
- Shafts, pins and mechanical components.
- Turned, milled and machined parts.
- Metalworking, platework and welded assemblies.
- Supports, anchors, tie rods and auxiliary elements.
- Machinery manufacturing, maintenance and industrial projects.
Advantages of Supply from SUALSA
- Extensive range of steel products and merchant bars.
- Order preparation according to the project or manufacturing stage.
- Cutting and additional services subject to diameter and requirements.
- Personalised technical and commercial support.
- National and international supply.
Weight and Dimension Table (verified with SUALSA)
Values calculated for a solid circular steel bar using a reference density of 7,850 kg/m³. The table covers the diameters listed in the technical sheet up to the commercial limit of Ø250 mm stated on the website.
| Ø mm | Area cm² | kg/m | Ø mm | Area cm² | kg/m |
|---|---|---|---|---|---|
| 3 | 0.071 | 0.055 | 60 | 28.274 | 22.195 |
| 3.5 | 0.096 | 0.076 | 62 | 30.191 | 23.7 |
| 4 | 0.126 | 0.099 | 64 | 32.17 | 25.253 |
| 4.5 | 0.159 | 0.125 | 65 | 33.183 | 26.049 |
| 5 | 0.196 | 0.154 | 66 | 34.212 | 26.856 |
| 5.5 | 0.238 | 0.187 | 68 | 36.317 | 28.509 |
| 6 | 0.283 | 0.222 | 70 | 38.485 | 30.21 |
| 7 | 0.385 | 0.302 | 72 | 40.715 | 31.961 |
| 8 | 0.503 | 0.395 | 74 | 43.008 | 33.762 |
| 9 | 0.636 | 0.499 | 75 | 44.179 | 34.68 |
| 10 | 0.785 | 0.617 | 76 | 45.365 | 35.611 |
| 11 | 0.95 | 0.746 | 78 | 47.784 | 37.51 |
| 12 | 1.131 | 0.888 | 80 | 50.265 | 39.458 |
| 13 | 1.327 | 1.042 | 85 | 56.745 | 44.545 |
| 14 | 1.539 | 1.208 | 90 | 63.617 | 49.94 |
| 15 | 1.767 | 1.387 | 95 | 70.882 | 55.643 |
| 16 | 2.011 | 1.578 | 100 | 78.54 | 61.654 |
| 17 | 2.27 | 1.782 | 105 | 86.59 | 67.973 |
| 18 | 2.545 | 1.998 | 110 | 95.033 | 74.601 |
| 19 | 2.835 | 2.226 | 115 | 103.869 | 81.537 |
| 20 | 3.142 | 2.466 | 120 | 113.097 | 88.781 |
| 21 | 3.464 | 2.719 | 125 | 122.718 | 96.334 |
| 22 | 3.801 | 2.984 | 130 | 132.732 | 104.195 |
| 23 | 4.155 | 3.261 | 135 | 143.139 | 112.364 |
| 24 | 4.524 | 3.551 | 140 | 153.938 | 120.841 |
| 25 | 4.909 | 3.853 | 145 | 165.13 | 129.627 |
| 26 | 5.309 | 4.168 | 150 | 176.715 | 138.721 |
| 27 | 5.726 | 4.495 | 155 | 188.692 | 148.123 |
| 28 | 6.158 | 4.834 | 160 | 201.062 | 157.834 |
| 29 | 6.605 | 5.185 | 165 | 213.825 | 167.852 |
| 30 | 7.069 | 5.549 | 170 | 226.98 | 178.179 |
| 32 | 8.042 | 6.313 | 175 | 240.528 | 188.815 |
| 34 | 9.079 | 7.127 | 180 | 254.469 | 199.758 |
| 36 | 10.179 | 7.99 | 185 | 268.803 | 211.01 |
| 38 | 11.341 | 8.903 | 190 | 283.529 | 222.57 |
| 40 | 12.566 | 9.865 | 195 | 298.648 | 234.438 |
| 41 | 13.203 | 10.364 | 200 | 314.159 | 246.615 |
| 42 | 13.854 | 10.876 | 205 | 330.064 | 259.1 |
| 44 | 15.205 | 11.936 | 210 | 346.361 | 271.893 |
| 46 | 16.619 | 13.046 | 215 | 363.05 | 284.994 |
| 48 | 18.096 | 14.205 | 220 | 380.133 | 298.404 |
| 50 | 19.635 | 15.413 | 225 | 397.608 | 312.122 |
| 52 | 21.237 | 16.671 | 230 | 415.476 | 326.148 |
| 54 | 22.902 | 17.978 | 235 | 433.736 | 340.483 |
| 55 | 23.758 | 18.65 | 240 | 452.389 | 355.126 |
| 56 | 24.63 | 19.335 | 245 | 471.435 | 370.077 |
| 58 | 26.421 | 20.74 | 250 | 490.874 | 385.336 |
Note: the values are theoretical and rounded. They do not replace a certified table, product tolerances or the documentation for the supplied material. Applicable specifications must be confirmed for quotations, manufacturing or structural calculations.
Standard Theoretical Calculation for a Circular Bar
For reference, the area of a solid circular cross-section is calculated from the diameter and its theoretical weight depends on the steel density. These formulas do not replace a certified manufacturer data sheet:
Area (mm²) = π × diameter² / 4
Theoretical weight (kg/m) ≈ diameter² (mm) × 0.006165
Mathematical example for Ø20 mm: 20² × 0.006165 ≈ 2.47 kg/m. This matches the value shown in the verified table above.
Steel Grades and Documentation
S275JR
Structural steel grade stated in the technical data sheet. Properties and conformity must be checked in the documentation for the supplied material.
S355J2+N
Structural steel grade stated in the technical sheet, with J2 designation and +N delivery condition. It must be confirmed through the certificate and manufacturer documentation.
Other Grades Listed on the Website
The product page lists S275M/+M, S355M/+M, S355K2/+M, S355J2W, 16Mo3, F1 and F114. Actual availability must be confirmed according to diameter, quantity and delivery condition.
Frequently Asked Questions
What is the difference between a plain round bar and reinforcing bar?
A plain round bar has a smooth surface and is mainly used for manufacturing and machining. Reinforcing bar is designed for concrete reinforcement.
What size range is stated on the website?
From Ø3 mm to Ø250 mm.
Which standard is stated in the technical sheet?
UNE 36-541-76.
Which steel grades are specified in the technical data sheet?
S275JR and S355J2+N.
Is the weight table in this data sheet reliable?
Yes. The values have been recalculated for a solid circular bar and verified with SUALSA (confirmed reference: Ø10 mm = 0.62 kg/m).
Can the bars be supplied cut to length?
SUALSA can assess cutting and material preparation according to diameter, quantity and order requirements.
Quick Information for Search Engines and AI Assistants
| Field | Content |
|---|---|
| Product | Hot rolled solid round steel bar |
| Synonyms | Solid round steel bar, hot rolled round bar, round steel bar, round solid bar |
| Standard stated | UNE 36-541-76 |
| Commercial website range | Ø3 mm to Ø250 mm |
| Grades in the technical data sheet | S275JR and S355J2+N |
| Applications | Machining, machinery, metalworking, platework and industrial fabrication |
| Supplier | SUALSA, steel service center |
Call to Action
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