ASTM A500 Gr. A Hot Finish Rectangular Hollow Section
Ranfit Metal is a well-known manufacturer, supplier, and stockiest of ASTM A500 Gr. A Hot Finish Rectangular Hollow Section. Hot-finished Gr. A RHS Hot-finished hollow sections is a structural steel product widely used in construction, engineering, and industrial applications. Gr. A Rectangular Hollow Hot-finished Sections has a minimum yield strength of 50,000 psi (345 MPa), which is significantly higher than other grades of steel. This increased strength enables the section to withstand heavy loads and harsh environmental conditions, making it suitable for use in demanding applications such as building frames, bridges, and heavy machinery. ASME SA500 Gr. A Hot Finished Rectangular Hollow Section Welded Tube is made from high-quality steel alloy that conforms to the ASTM A500 standard, ensuring exceptional strength, durability, and resistance to corrosion. However, if you are referring to hot finish ASTM A500 Gr. A Rectangular Hollow Section, the term "hot finish" might indicate a post-welding heat treatment or a different finishing process often used to relieve stresses or improve mechanical properties. The long-term durability and low maintenance requirements of ASTM A500 Gr. A Seamless RHS Pipes can come in a range of sizes, with diameters from 10x10 mm to 500x500 mm, wall thicknesses from 0.4 mm to 25 mm, and lengths from 1 to 12 meters. Hot Finish ASTM A500 Gr. A CS Rectangular Hollow Section is a carbon steel hollow section pipe that is used for a variety of applications, including construction, shipbuilding, and chemical construction.
ASTM A500: Hot Finish is a carbon steel hollow section pipe.
Grade A: is the lowest strength grade under ASTM A500, primarily used for structural applications where higher grades (B, C, D) are unnecessary.
| Standard No | ASTM A500 / ASME SA500 |
| Grade | Gr. A (Hot Finish) |
| RHS (Rectangular Hollow Sections) Sizes | 10mm x 15mm / 150mmx50mm / 300mmx400mm / 600mmx550mm |
| Dimensional Tolerances | Thickness (All sizes +/- 10%) |
| Wall Thickness | 0.5mm - 25mm |
| Length | 6000-14000 mm |
| Dimension Range | 21.3-914mm |
| End Finish | mill-cut finish without further machining, Plain ended-Mechanically sheared |
| Surface Finish | 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 |
| Standard | Grade |
| ASTM A500 | Grade A |
| ASTM A500 | C, max | P, max | S, max | Cu, min |
| Grade A | 0.26 | 0.035 | 0.035 | 0.20 |
| ASTM A500 | Tensile strength, min | Yield strength, min, | Elongation in 2 in. (50.8 mm) min, % |
| Grade A | 310 MPa, 45 000 psi | 269 MPa, 39 000 psi | 25 |
| 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 | |
| Characteristics | Tolerance | |
|---|---|---|
| Outside Diameter of Size (H: Longest Side; B: Shortest Side) |
H < 100mm, B < 100mm | max ±1% with a min of ±0.5mm |
| 100mm ≤ H ≤ 200mm, 100mm ≤ B ≤ 00mm | ±0.8% | |
| H200mm, B200mm | ±0.6% | |
| Wall Thickness | WT ≤ 5mm | ±10% |
| WT5mm | ±0.5mm | |
| Concavity/Convexity | max ±0.8% with a min of ±0.5mm | |
| Squareness of Sides | 90°±1° | |
| External Corner Radius | WT ≤ 6mm | 1.6WT ≤ R ≤ 2.4WT |
| 6mm < WT ≤ 10mm | 2.0WT ≤ R ≤ 3.0WT | |
| WT10mm | 2.4WT ≤ R ≤ 3.6WT | |
| Twist | 2mm + 0.5mm/m in length | |
| Straightness | 1.5mm/1000mm in total length | |
| Mass | ±6% in individual lengths | |
| Length | L<6000mm | +5mm/-0mm |
| 6000mm ≤ L ≤ 10000mm | +15mm/-0mm | |
| L 10000mm | +5mm/-0mm plus 1mm/m | |
| Random Length | 4000 to 16000 with a range of 2000 Per order item | 10% of sections supplied may be below minimum for the ordered range, but not less than 75% of the minimum of the range. |
| Approximate Length | 4000 to 16000 | 500 mm |
| Exact Length | ≥ 2000 to 6000 ≥ 6000 |
+10 /-0 mm +15 /-0 mm |
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