IS 4923 YST 310 Rectangular Hollow Section
Ranfit Metal is a well-known manufacturer, supplier, and stockiest of Cold Formed IS4923 YST 310 Rectangular Hollow Section. Cold Formed IS 4923 YST 310 Rectangular Hollow Section Tubes are structural members commonly used in construction and engineering applications.
Cold Formed IS4923 YST 310 Rectangular Pipe is High strength-to-weight ratio, allowing for reduced material usage and cost savings. The cold-forming process used to produce IS 4923 YST 310 rectangular hollow sections results in a stronger and more durable product compared to hot-rolled sections.
Manufactured in accordance with Indian Standard IS4923, this RHS features a yield strength of 310 MPa, making it an ideal choice for load-bearing structures and components that require exceptional durability and resistance to corrosion. Cold-formed IS 4923 YST 310 Welded RHS can be easily cut and welded to suit specific project requirements, allowing for greater design flexibility.
Cold Formed IS4923 YST 310 Rectangular Hollow Section Tubeing geometric shape provides excellent torsional stiffness and resistance to twisting forces, making it particularly suited for applications where axial loads are prevalent.
IS 4923: Indian Standard for Hollow Steel Sections for Structural Use.
YST 310: indicates a yield strength of 310 MPa.
| Standard | IS 4923 |
| Grade | YST 310 |
| RHS (Rectangular Hollow Sections) Sizes | 10mm x 15mm / 150mmx50mm / 300mmx400mm / 600mmx550mm |
| Outside Diameter | 21.3—457.2mm |
| Wall Thickness | 0.5mm - 25mm |
| Length | 6000-14000 mm |
| Straightness | Minimum 1 : 200th of any length measured along the centre line (mill straightened condition) unless otherwise specifically arranged. |
| Tolerance | Thickness (All sizes +/- 10%) |
| Surface Protection | Black (Self Coloured uncoated), Varnish/Oil Coating, Pre-Galvanized, Hot Dip Galvanized |
| Packing | In bundles, Anticorrosion heat preservation, Varnish coating, Ends can be bevelled or rectangular cut, End Capped Certification & supplementary test, Finishing & Identity Mark |
| Specification | Steel Grade | C | Si | Mn | P | S |
| IS 4923 | YST 310 | 0.12% max. | 0.03% to 0.08% | 0.50% max. | 0.05% max. | 0.05% max. |
| Grade | Min. Tensile Strength Mpa | Min. Yield Stress Mpa | Min. Elongation Percent for size | |
| 25.4 and under | over25.4 | |||
| YST 310 | 450 | 310 | 8 | 10 |
| Size mm | kg/m | Size mm | kg/m |
|---|---|---|---|
| 40 x 20 x 2.0 | 1.68 | 40 x 20 x 2.5 | 2.03 |
| 40 x 20 x 3.0 | 2.36 | 40 x 25 x 1.5 | 1.44 |
| 40 x 25 x 2.0 | 1.89 | 40 x 25 x 2.5 | 2.23 |
| 50 x 25 x 2.0 | 2.21 | 50 x 25 x 2.5 | 2.72 |
| 50 x 25 x 3.0 | 3.22 | 50 x 30 x 2.5 | 2.92 |
| 50 x 30 x 3.0 | 3.45 | 50 x 30 x 4.0 | 4.46 |
| 50 x 40 x 3.0 | 3.77 | 60 x 40 x 2.0 | 2.93 |
| 60 x 40 x 2.5 | 3.71 | 60 x 40 x 3.0 | 4.39 |
| 60 x 40 x 4.0 | 5.72 | 70 x 50 x 2 | 3.56 |
| 70 x 50 x 2.5 | 4.39 | 70 x 50 x 3.0 | 5.19 |
| 70 x 50 x 4.0 | 6.71 | 80 x 40 x 2.5 | 4.26 |
| 80 x 40 x 3.0 | 5.34 | 80 x 40 x 4.0 | 6.97 |
| 80 x 40 x 5.0 | 8.54 | 80 x 50 x 3.0 | 5.66 |
| 80 x 50 x 4.0 | 7.34 | 90 x 50 x 3.0 | 6.28 |
| 90 x 50 x 3.6 | 7.46 | 90 x 50 x 5.0 | 10.11 |
| 100 x 50 x 2.5 | 5.63 | 100 x 50 x 3.0 | 6.75 |
| 100 x 50 x 4.0 | 8.86 | 100 x 50 x 5.0 | 10.90 |
| 100 x 60 x 3.0 | 7.22 | 100 x 60 x 3.6 | 8.59 |
| 100 x 60 x 5.0 | 11.70 | 120 x 80 x 2.5 | 7.65 |
| 120 x 80 x 3.0 | 9.03 | 120 x 80 x 4.0 | 12.00 |
| 120 x 80 x 5.0 | 14.80 | 120 x 80 x 6.0 | 17.60 |
| 120 x 80 x 8.0 | 22.9 | 150 x 100 x 5.0 | 18.70 |
| 150 x 100 x 6.0 | 22.30 | 150 x 100 x 8.0 | 29.10 |
| 150 x 100 x 10.0 | 35.70 | 160 x 80 x 5.0 | 18.00 |
| 160 x 80 x 6.0 | 21.30 | 160 x 80 x 8.0 | 27.90 |
| 200 x 100 x 5.0 | 22.70 | 200 x 100 x 6.0 | 27.00 |
| 200 x 100 x 8.0 | 35.4 | 200 x 100 x 10.0 | 43.60 |
| 250 x 150 x 5.0 | 30.5 | 250 x 150 x 6.0 | 38.2 |
| 250 x 150 x 8.0 | 48.0 | 250 x 150 x 10 | 59.3 |
| 300 x 200 x 6.0 | 48.10 | 300 x 200 x 8.0 | 60.50 |
| 300 x 200 x 10.0 | 75.00 | 400 x 200 x 8.0 | 73.10 |
| 400 x 200 x 10.0 | 90.70 | 400 x 200 x 16 | 142.00 |
| RHS | Thickness | Sec Area | Unit | Moment of Inertia | Radius of Gyration | Elastic Modulus | Torsional Constants | Outer Surface Area |
||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | mm | cm2 | kg/m | cm4 | cm4 | cm | cm | cm3 | cm3 | cm4 | cm3 | m2 |
| 50x25 | 2 | 2.74 | 2.15 | 8.38 | 2.81 | 1.75 | 1.01 | 3.35 | 2.25 | 6.97 | 3.79 | 0.142 |
| 2.6 | 3.46 | 2.71 | 10.16 | 3.36 | 1.71 | 0.99 | 4.06 | 2.69 | 8.27 | 4.53 | 0.137 | |
| 3.2 | 4.13 | 3.24 | 11.63 | 3.8 | 1.68 | 0.96 | 4.35 | 3.04 | 9.52 | 5.12 | 0.134 | |
| 4 | 4.95 | 3.88 | 13.13 | 4.23 | 1.63 | 0.92 | 5.25 | 3.38 | 10.86 | 5.69 | 0.129 | |
| 60x40 | 2.26 | 4.76 | 3.73 | 22.76 | 12.09 | 2.19 | 1.59 | 7.59 | 6.05 | 25.59 | 9.83 | 0.187 |
| 2.9 | 5.25 | 4.12 | 24.74 | 13.11 | 2.17 | 1.58 | 8.25 | 6.56 | 28.02 | 10.66 | 0.185 | |
| 3.6 | 6.35 | 4.98 | 28.9 | 15.23 | 2.13 | 1.55 | 9.63 | 7.62 | 33.3 | 12.41 | 0.181 | |
| 4.5 | 7.67 | 6.02 | 33.31 | 17.44 | 2.08 | 1.51 | 11.1 | 8.72 | 39.34 | 14.29 | 0.177 | |
| 60x33 | 2.6 | 4.7 | 3.69 | 25.15 | 8.43 | 2.31 | 1.34 | 7.62 | 5.11 | 20.75 | 8.71 | 0.185 |
| 2.9 | 5.19 | 4.07 | 27.33 | 9.12 | 2.29 | 1.33 | 8.28 | 5.53 | 22.65 | 9.43 | 0.183 | |
| 3.6 | 6.28 | 4.93 | 31.87 | 10.52 | 2.25 | 1.29 | 9.66 | 6.37 | 26.71 | 10.9 | 0.179 | |
| 4.5 | 7.58 | 5.95 | 36.64 | 11.93 | 2.20 | 1.25 | 11.1 | 7.23 | 31.21 | 12.43 | 0.175 | |
| 80x40 | 2.6 | 5.8 | 4.55 | 46.58 | 15.74 | 2.84 | 1.65 | 11.65 | 7.87 | 38.5 | 13.46 | 0.227 |
| 2.9 | 6.41 | 5.03 | 50.87 | 17.11 | 2.82 | 1.63 | 12.72 | 8.56 | 42.23 | 14.66 | 0.225 | |
| 3.2 | 7.01 | 5.5 | 54.94 | 18.41 | 2.8 | 1.62 | 13.74 | 9.21 | 45.83 | 15.78 | 0.224 | |
| 4 | 8.55 | 6.71 | 64.79 | 21.49 | 2.75 | 1.59 | 16.2 | 10.74 | 54.77 | 18.49 | 0.219 | |
| 4.8 | 10.01 | 7.85 | 73.22 | 24.03 | 2.71 | 1.55 | 18.3 | 12.02 | 62.81 | 20.79 | 0.215 | |
| 96x48 | 3.2 | 8.54 | 6.71 | 98.61 | 33.28 | 3.4 | 1.97 | 20.54 | 13.87 | 82.13 | 23.82 | 0.272 |
| 4 | 10.47 | 8.22 | 117.54 | 39.32 | 3.35 | 1.94 | 24.49 | 16.38 | 99.11 | 28.24 | 0.267 | |
| 4.8 | 12.31 | 9.66 | 134.35 | 44.55 | 3.3 | 1.9 | 27.99 | 18.56 | 114.8 | 32.14 | 0.263 | |
| 122x61 | 3.6 | 12.32 | 9.67 | 232.61 | 78.83 | 4.34 | 2.53 | 38.13 | 25.85 | 193.91 | 44.5 | 0.347 |
| 4.5 | 15.14 | 11.88 | 278.94 | 93.78 | 4.29 | 2.49 | 45.73 | 30.75 | 235.39 | 53.13 | 0.343 | |
| 5.4 | 17.85 | 14.01 | 320.83 | 107.03 | 4.24 | 2.45 | 52.6 | 35.09 | 347.29 | 60.89 | 0.338 | |
| 120x60 | 3.2 | 10.85 | 8.51 | 199.88 | 67.95 | 4.29 | 2.5 | 33.31 | 22.65 | 165.83 | 28.95 | 0.344 |
| 3.6 | 12.11 | 9.5 | 220.75 | 74.77 | 4.27 | 2.48 | 36.79 | 24.92 | 184.1 | 42.91 | 0.341 | |
| 4.5 | 14.87 | 11.67 | 264.52 | 88.88 | 4.22 | 2.44 | 44.09 | 29.63 | 223.34 | 51.19 | 0.337 | |
| 145x82 | 4.8 | 20.28 | 15.92 | 555.16 | 228.50 | 5.23 | 3.36 | 76.57 | 55.73 | 534.27 | 94.45 | 0.429 |
| 5.4 | 22.6 | 17.74 | 610.85 | 250.59 | 5.2 | 3.33 | 84.26 | 61.12 | 592.7 | 103.81 | 0.426 | |
| Size (inches) | Wall Thickness (inches) | Outside Diameter (inches) |
Inside Diameter (inches)
|
| 1/2 x 1/2 | 0.065 | 0.84 | 0.61 |
| 3/4 x 3/4 | 0.065 | 1.05 | 0.82 |
| 1 x 1 | 0.065 | 1.315 | 1.049 |
| 1 x 1 | 0.083 | 1.315 | 1.035 |
| 1 x 1 | 0.109 | 1.315 | 0.957 |
| 1-1/4 x 1-1/4 | 0.065 | 1.66 | 1.38 |
| 1-1/4 x 1-1/4 | 0.083 | 1.66 | 1.334 |
| 1-1/4 x 1-1/4 | 0.109 | 1.66 | 1.278 |
| 1-1/2 x 1-1/2 | 0.065 | 1.9 | 1.61 |
| 1-1/2 x 1-1/2 | 0.083 | 1.9 | 1.584 |
| 1-1/2 x 1-1/2 | 0.109 | 1.9 | 1.5 |
| 2 x 2 | 0.065 | 2.375 | 2.245 |
| 2 x 2 | 0.083 | 2.375 | 2.307 |
| 2 x 2 | 0.109 | 2.375 | 2.245 |
| 2-1/2 x 2-1/2 | 0.083 | 2.875 | 2.709 |
| 2-1/2 x 2-1/2 | 0.109 | 2.875 | 2.625 |
| 3 x 3 | 0.083 | 3.5 | 3.334 |
| 3 x 3 | 0.109 | 3.5 | 3.26 |
| 3-1/2 x 3-1/2 | 0.109 | 4 | 3.834 |
| 4 x 4 | 0.083 | 4.5 | 4.334 |
| 4 x 4 | 0.109 | 4.5 | 4.26 |
| 4 x 4 | 0.188 | 4.5 | 4.124 |
| 5 x 5 | 0.188 | 5 | 4.624 |
| 6 x 6 | 0.188 | 6 | 5.624 |
| Dimensions less than 100mm | +/- 1.0% with a minimum of +/- 0.5mm |
| Dimensions 100mm up to 200mm | +/- 0.8% |
| Dimensions over 200mm | +/- 0.6% |
| Wall thickness (excluding weld area) | +/-10% for specified thickness of 5mm or below and +/-0.5mm for thickness greater than 5mm |
| Concavity/Convexity | Max. 0.8% with a minimum of 0.5mm |
| Squareness of sides | 90 Degree +/- 1 Degree |
| Externalcorner radius | 6mm thick or below: 1.6 to 2.4 x wall thickness |
| Straightness | 0.15% of total length |
| Twist | 2mm + ( 0.5mm per mtr ) max |
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