IS 4923 YST 240 Hot Finish Square Hollow Section
Ranfit Metal is a well-known manufacturer, supplier, and stockiest of IS 4923 YST 240 Hot Finish Square Hollow Section. Hot Finished IS4923 YST 240 SHS commonly used in structural applications due to their uniform strength and aesthetic appeal. The hot finish process involves heating the IS 4923 YST 240 MS Hot Finish Square Section to a high temperature, typically around 800°C (1472°F), to make it more malleable and easier to form into the desired shape. The dimensions of the IS 4923 YST 240 Hot Finish Welded Square Tube will vary based on the application, with standard sizes available (e.g., 50x50 mm, 100x100 mm, etc.) and wall thickness options depending on the required strength and load-bearing capacity. The Hot Finish IS 4923 YST 240 Seamless Square Hollow Section is a type of hollow steel section that is manufactured using a hot finishing process. This process involves heating the steel to high temperatures, which helps improve its overall quality and strength. The Hot Finish IS 4923 YST 240 Structural Square Hollow Section offers exceptional strength, making it suitable for load-bearing structures that require high durability. The Hot Finish IS 4923 YST 240 SHS is a versatile and reliable product that offers exceptional performance and durability in a wide range of applications. Its high strength, excellent corrosion resistance, and good weldability make it an ideal choice for engineers, architects, and manufacturers looking for a reliable and efficient solution.
IS4923: Indian Standard 4923
YST 240 The "YST" stands for "Yield Strength of Tubes," with 240 indicating a minimum yield strength of 240 MPa.
| Standard No | IS 4923 |
| Grade | YST 240 (Hot Finish) |
| SHS (Square Hollow Sections) Sizes | 20*20mm-400*400mm |
| Outside Diameter | 21.3—457.2mm |
| Wall Thickness | 1.8—-14.27mm |
| Length | 6000 – 12 000/18 000 mm |
| Straightness | Min 1 = 200&of any lengths measured along the centre line unless otherwise specifically managed |
| Twist Tolerance | Maximum 2 mm ± 0.05 mm/m length-measured relative vertical shift of any adjacent corner of the section, measured by keeping one side on flat surface |
| End Finish | mill-cut finish without further machining, Plain ended-Mechanically sheared |
| Surface Finish | Black without any surface treatment of oiling /varnishing. |
| Weldability | Square Hollow Sections are weldable with standard M.S. Electrodes without any pre-heating. |
| 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 240 | 330 | 240 | 12 | 20 |
| Size mm | kg/m | Size mm | kg/m |
|---|---|---|---|
| 20 x 20 x 2.0 | 1.12 | 20 x 20 x 2.5 | 1.35 |
| 25 x 25 x 1.5 | 1.06 | 25 x 25 x 2.0 | 1.43 |
| 25 X 25 X 2.5 | 1.74 | 25 X 25 X 3.0 | 2.04 |
| 30 X 30 X 2.0 | 1.68 | 30 X 30 X 2.5 | 2.14 |
| 30 X 30 X 3.0 | 2.51 | 40 x 40 x 1.5 | 1.81 |
| 40 x 40 x 2.0 | 2.31 | 40 x 40 x 2.5 | 2.92 |
| 40 x 40 x 3.0 | 3.45 | 40 x 40 x 4.0 | 4.46 |
| 40 x 40 x 5.0 | 5.40 | 50 x 50 x 1.5 | 2.28 |
| 50 x 50 x 2.0 | 2.93 | 50 x 50 x 2.5 | 3.71 |
| 50 x 50 x 3.0 | 4.39 | 50 x 50 x 4.0 | 5.72 |
| 50 x 50 x 5.0 | 6.97 | 60 x 60 x 3.0 | 5.34 |
| 60 x 60 x 4.0 | 6.97 | 60 x 60 x 5.0 | 8.54 |
| 60 x 60 x 6.0 | 9.45 | 70 x 70 x 3.0 | 6.28 |
| 70 x 70 x 3.6 | 7.46 | 70 x 70 x 5.0 | 10.11 |
| 70 x 70 x 6.3 | 12.50 | 70 x 70 x 8 | 15.30 |
| 75 x 75 x 3.0 | 7.07 | 80 x 80 x 3.0 | 7.22 |
| 80 x 80 x 3.6 | 8.59 | 80 x 80 x 5.0 | 11.70 |
| 80 x 80 x 6.0 | 13.90 | 90 x 90 x 3.0 | 8.01 |
| 90 x 90 x 3.6 | 9.72 | 90 x 90 x 5.0 | 13.30 |
| 90 x 90 x 6.0 | 15.76 | 90 x 90 x 8.0 | 20.40 |
| 100 x 100 x 3.0 | 8.96 | 100 x 100 x 4.0 | 12.00 |
| 100 x 100 x 5.0 | 14.80 | 100 x 100 x 5.0 | 14.80 |
| 100 x 100 x 6.0 | 16.19 | 100 x 100 x 8.0 | 22.90 |
| 100 x 100 x 10 | 27.90 | 120 x 120 x 5 | 18.00 |
| 120 x 120 x 6.0 | 21.30 | 120 X 120 X 6.3 | 22.30 |
| 120 x 120 x 8.0 | 27.90 | 120 x 120 x 10 | 34.20 |
| 120 X 120 X 12 | 35.8 | 120 X 120 X 12.5 | 41.60 |
| 140 X 140 X 5.0 | 21.10 | 140 X 140 X 6.3 | 26.30 |
| 140 X 140 X 8 | 32.90 | 140 X 140 X 10 | 40.40 |
| 140 X 140 X 12.5 | 49.50 | 150 X 150 X 5.0 | 22.70 |
| 150 X 150 X 6.3 | 28.30 | 150 X 150 X 8.0 | 35.40 |
| 150 X 150 X 10 | 43.60 | 150 X 150 X 12.5 | 53.40 |
| 150 X 150 X 16 | 66.40 | 150 X 150 X 16 | 66.40 |
| 180 X 180 X 5 | 27.40 | 180 X 180 X 6.3 | 34.20 |
| 180 X 180 X 8 | 43.00 | 180 X 180 X 10 | 53.00 |
| 180 X 180 X 12.5 | 65.20 | 180 X 180 X 16 | 81.40 |
| 200 X 200 X 5 | 30.50 | 200 X 200 X 6 | 35.8 |
| 200 x 200 x 6.3 | 38.2 | 200 x 200 x 8 | 48.00 |
| 200 x 200 x 10 | 59.30 | 200 x 200 x 12.5 | 73.00 |
| 200 x 200 x 16 | 91.50 | 250 x 250 x 6.3 | 48.10 |
| 250 x 250 x 8 | 60.50 | 250 x 250 x 10 | 75.00 |
| 250 x 250 x 12.5 | 92.60 | 250 x 250 x 16 | 117.00 |
| 300 x 300 x 6.3 | 57.90 | 300 x 300 x 8 | 73.10 |
| 300 x 300 x 10 | 57.90 | 300 x 300 x 8 | 90.70 |
| 300 x 300 x 12.5 | 112.00 | 300 x 300 x 16 | 142.00 |
| 350 x 350 x 8 | 85.70 | 350 x 350 x 10 | 106.00 |
| 350 x 350 x 12.5 | 132.00 | 350 x 350 x 16 | 167.00 |
| 400 x 400 x 10 | 122.00 | 400 x 400 x 12 | 141.00 |
| 400 x 400 x 12.5mm | 152.00 | 400 x 400 x 16 | 192 |
| Characteristics | Tolerances | |
|---|---|---|
| Outside dimensions | (H,B2.5in.) | ±0.020in. (0.5mm) |
| H : Longest side | (2.5in.H, B3.5in.) | ±0.025in. (0.6mm) |
| B : Shortest side | (3.5in.H, B5.5in.) | ±0.030in. (0.8mm) |
| & | (5.5in.H, B) | 1% in dimensions |
| Wall thickness(T) | ±10% in thickness | & |
| Squareness of sides | 90±2 | & |
| External corner radius(R) | R3T | & |
| Twist | (H1.5in.) | ±0.050in./3feet length (1.3mm/1m length) |
| & | (1.5in.H2.5in.) | ±0.062in./3feet length (1.6mm/1m length) |
| & | (2.5in.H4.0in.) | ±0.075in./3feet length (1.9mm/1m length) |
| & | (4.0in.H6.0in.) | ±0.087in./3feet length (2.2mm/1m length) |
| & | (6.0in.H8.0in.) | ±0.100in./3feet length (2.5mm/1m length) |
| & | (8.0in.H) | ±0.112in./3feet length (2.8mm/1m length) |
| Straightness | 1/8 in./1 feet length (10.4mm/1m length) | |
| Length(L) | 0, +50mm (Private standard tolerance) | |
| NOTE 1) The tolerance of outside dimensions includes an allowance for convexity or concavity. 2) Outside dimensions are measured across the flats at positions at least 2in. from the end of the HSS. |
||
| IS 4923 SHS Types | Out diameter | Wall thickness | Length |
|---|---|---|---|
| IS 4923 YST 240 Seamless Square Pipe | 1/2 To 60 | Schedule 5/40/10/160/80 | Custom |
| IS 4923 YST 240 ERW Square Pipe | 1/2 to 24 | As per requirement | Custom |
| IS 4923 YST 240 Welded Square Pipe | 1/2 To 24 | As per requirement | Custom |
| IS 4923 YST 240 SAW Square Pipe | 16 To 100 | As per requirement | Custom |
| 10-100 | + 1.0/- 0 | + 2.0/- 0 |
| 100-600 | + 2.0/- 0 | + 3.0/- 0 |
| 600-1200 | + 3.0/- 0 | + 4.0/- 0 |
| 1200-5000 | + 5.0/- 0 | + 6.0/- 0 |
| Nominal pipe size in Mm | Pipes Size in inch | Outer Diameter in MM | Sch 20 | Sch 30 | Sch STD | Sch 40 | Sch 60 | Sch EXTRA | Sch XS | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 | ¼ | 13.7 | 2.24 | 0.63 | 2.24 | 0.625 | 3.02 | 0.804 | ||||||
| 3 | 1/8 | 10.3 | 1.73 | 0.37 | 1.73 | 0.357 | 2.41 | 0.47 | ||||||
| 10 | 3/8 | 17.1 | 2.31 | 0.84 | 2.31 | 0.84 | 3.2 | 1.1 | ||||||
| 20 | ¾ | 26.7 | 2.87 | 1.69 | 2.87 | 1.68 | 3.91 | 2.2 | ||||||
| 15 | ½ | 21.3 | 2.77 | 1.26 | 2.77 | 1.26 | 3.73 | 1.62 | ||||||
| 32 | 11/4 | 42.2 | 3.56 | 3.39 | 3.56 | 3.38 | 4.85 | 4.47 | ||||||
| 25 | 1 | 33.4 | 3.38 | 2.5 | 3.38 | 2.5 | 4.55 | 3.24 | ||||||
| 40 | 11/2 | 48.3 | 3.68 | 4.05 | 3.68 | 4.05 | 5.08 | 5.41 | ||||||
| 65 | 21/2 | 73 | 5.2 | 8.63 | 5.16 | 8.63 | 7 | 11.41 | ||||||
| 50 | 2 | 60.3 | 3.9 | 5.44 | 3.9 | 5.44 | 5.5 | 7.48 | ||||||
| 80 | 3/8 | 88.9 | 5.5 | 11.3 | 5.5 | 11.3 | 7.62 | 15.3 | ||||||
| 100 | 4 | 114.3 | 6.02 | 16.07 | 6.02 | 16.07 | 8.56 | 22.3 | ||||||
| 90 | 31/2 | 1.6 | 5.74 | 13.57 | 5.74 | 13.57 | 8.08 | 18.63 | ||||||
| 125 | 5 | 141.3 | 6.6 | 21.77 | 6.55 | 21.77 | 9.53 | 30.9 | ||||||
| 200 | 8 | 219.1 | 6.35 | 33.3 | 7 | 36.8 | 8.2 | 42.5 | 8.2 | 42.5 | 10.3 | 53.1 | 12.7 | 64.6 |
| 150 | 6 | 168.3 | 7.11 | 28.26 | 7.11 | 28.26 | 10.97 | 42.5 | ||||||
| 250 | 10 | 273 | 6.35 | 41.7 | 7.8 | 51.3 | 9.27 | 60.3 | 9.27 | 60.3 | 12.7 | 81.5 | 12.7 | 81.5 |
| 350 | 14 | 355.6 | 7.92 | 68.1 | 9.53 | 81.3 | 9.53 | 81.3 | 11.13 | 94.3 | 15.1 | 126.4 | 12.7 | 107 |
| 300 | 12 | 323.9 | 6.35 | 49.7 | 8.4 | 65.2 | 9.53 | 73.8 | 10.3 | 79.7 | 14.3 | 109 | 12.7 | 97.4 |
| 450 | 18 | 457.2 | 7.92 | 87.8 | 11.1 | 122 | 9.53 | 105 | 14.3 | 156 | 19 | 206 | 12.7 | 130 |
| 400 | 16 | 406.4 | 7.92 | 77.9 | 9.5 | 93.3 | 9.53 | 93.3 | 12.7 | 123 | 16.7 | 160 | 12.7 | 123 |
| 500 | 20 | 508 | 9.53 | 117.2 | 12.7 | 155.1 | 9.53 | 177.2 | 15.1 | 183 | 20.6 | 248 | 12.7 | 155.1 |
| 600 | 24 | 609.6 | 9.53 | 141 | 14.3 | 240 | 9.53 | 141 | 17.4 | 255 | 24.5 | 355 | 12.7 | 187 |
| 550 | 22 | 558.8 | 9.53 | 129 | 12.7 | 171 | 9.53 | 129 | & | & | 22.2 | 294 | 12.7 | 171 |
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