Which is stronger, round pipe or square, rectangle tubes? The answer is it depends upon the application of the pipe or tube. For the consistent flow of water, fluid, air, the gas round pipe is the most appropriate whereas in the case of structure application the Square or rectangle pipe withhold much more strength.
Comparision between the srength of Round and Square Pipe
Table of Contents
Round pipes are the best for transmission for any fluid, air, and gas. Square Pipe is much stronger than the round pipe for fabrication, the structure of such as Canopy, sheds, warehouse and also Furniture.
A round Pipe having a circular shape may be suitable for soft looks but a square pipe gives the steady look.
Innovation of Square Pipes, the perfect replacement of Round Pipes
The Stronger Pipe For Life – Round or Square
The 90-degree angle of the square pipe provides more strength and it is much stronger than round in any given thickness.
Size of Square Pipe
- 15×15
- 20×20
- 25×25
- 30×30
- 32×32
- 38×38
- 40×40
- 48×48
- 50×50
- 60×60
- 72×72
- 80×80
- 90×90
- 100×100
- 110×100
- 132×132
- 150×150
- 180×180
- 200×200
- 220×220
- 250×250
- 300×300
- 400×400
- 500×500
Various Thickness for Stronger Square Pipe.
- 0.80mm
- 1.00mm
- 1.20mm
- 1.60mm
- 1.80mm
- 2.00mm
- 2.20mm
- 2.40mm
- 2.50mm
- 2.90mm
- 3.00mm
- 3.20mm
- 3.50mm
- 4.00mm
- 4.50mm
- 5.00mm
- 5.50mm
- 6.00mm
- 7.00mm
- 7.50mm
- 8.00mm
- 9.00mm
- 9.50mm
- 10.00mm
- 11.00mm
- 12.00mm
Grades of Pipe Available for Stronger strength
- YST-210, YST-240, YST-310, YST-355
Standard of International Manufacturers
| Standard |
| API |
| API 5CT |
| – casing and tubing |
| API |
| API 5L |
| – line pipe |
| ASME |
| ANSI B36.10 |
| for low temperature pressure services |
| ASME |
| ASME B 16.9 |
| elbows for low temperature |
| ASME |
| SA 53 |
| suitable for welding or threading |
| ASME |
| SA334 |
| for low temperature pressure services |
| ASTM |
| A 161 |
| for heat exchangers |
| ASTM |
| A 179 |
| for heat exchangers |
| ASTM |
| A 192 |
| for high-pressure service – boiler |
| ASTM |
| A 199 |
| for heat exchangers |
| ASTM |
| A 199 |
| for heat exchangers |
| ASTM |
| A 209 |
| for high-pressure service – boiler |
| ASTM |
| A 210 |
| for high-pressure service – boiler |
| ASTM |
| A 213 |
| for high-pressure service – boiler |
| ASTM |
| A 213 |
| for high-pressure service – boiler |
| ASTM |
| A 335 |
| for high-pressure service – boiler |
| ASTM |
| A 519 |
| for automotive industry |
| ASTM |
| A 519 |
| for mechanical treatment, machine parts and general use |
| ASTM |
| A 519 |
| standard |
| ASTM |
| A 519 |
| standard |
| ASTM |
| A 53 |
| for mechanical treatment, machine parts and general use |
| ASTM |
| A 53 |
| for mechanical treatment, machine parts and general use |
| ASTM |
| A 53 |
| suitable for welding or threading |
| ASTM |
| A 556 |
| for high-pressure service – boiler |
| ASTM |
| A 795 |
| suitable for welding or threading |
| ASTM |
| A 822 |
| for pressure hydraulic and pneumatic lines – HPL |
| ASTM |
| A213 |
| for high-pressure service – boiler |
| ASTM |
| A334 |
| for low temperature pressure services |
| ASTM |
| A53 |
| for room temperature pressure service |
| ASTM |
| ANSI B 16.9 |
| elbows for elevated temperature |
| ASTM |
| ANSI B36.10 |
| for heat exchangers |
| ASTM |
| ANSI B36.10 |
| for high-pressure service – boiler |
| ASTM |
| ANSI B36.10 |
| for low temperature pressure services |
| BS |
| 1387 |
| suitable for welding or threading |
| BS |
| 1965-1 |
| elbows for elevated temperature |
| BS |
| 3059-1 |
| for high-pressure service – boiler |
| BS |
| 3059-2 |
| for high-pressure service – boiler |
| BS |
| 3600 |
| for low temperature pressure services |
| BS |
| 3600 |
| for room temperature pressure service |
| BS |
| 3602-1 |
| for high-pressure service – boiler |
| BS |
| 3604-1 |
| for high-pressure service – boiler |
| BS |
| 3606 |
| for heat exchangers |
| BS |
| 6323-3 |
| for mechanical treatment, machine parts and general use |
| BS |
| 6323-4 |
| for automotive industry |
| BS |
| 6323-4 |
| standard |
| BS |
| 7416 |
| for pressure hydraulic and pneumatic lines – HPL |
| ČSN |
| 13 2200 |
| reducers |
| ČSN |
| 13 2385 |
| reducers |
| ČSN |
| 42 5710 |
| suitable for welding or threading |
| ČSN |
| 42 5711 |
| suitable for welding or threading |
| ČSN |
| 42 5715 |
| for high-pressure service – boiler |
| ČSN |
| 42 5715 |
| for low temperature pressure services |
| ČSN |
| 42 5715 |
| for mechanical treatment, machine parts and general use |
| ČSN |
| 42 5715 |
| for room temperature pressure service |
| ČSN |
| 42 5716 |
| for high-pressure service – boiler |
| ČSN |
| 42 5716 |
| for low temperature pressure services |
| ČSN |
| 42 5716 |
| for mechanical treatment, machine parts and general use |
| ČSN |
| 42 5716 |
| for room temperature pressure service |
| ČSN |
| 42 5716 |
| for mechanical treatment, machine parts and general use |
| ČSN |
| 42 5716 |
| for structural purposes |
| ČSN |
| 42 5716 |
| for structural purposes |
| ČSN |
| 42 6710 |
| for heat exchangers |
| ČSN |
| 42 6710 |
| for high-pressure service – boiler |
| ČSN |
| 42 6710 |
| for low temperature pressure services |
| ČSN |
| 42 6711 |
| for heat exchangers |
| ČSN |
| 42 6711 |
| for high-pressure service – boiler |
| ČSN |
| 42 6711 |
| for low temperature pressure services |
| ČSN |
| 42 6711 |
| for mechanical treatment – HPZ |
| ČSN |
| 42 6711 |
| for pressure hydraulic and pneumatic lines – HPL |
| ČSN |
| 42 6711 |
| standard |
| ČSN |
| 42 6711 |
| “ready to use” – HP |
| ČSN |
| 42 6712 |
| for mechanical treatment – HPZ |
| ČSN |
| 42 6712 |
| for pressure hydraulic and pneumatic lines – HPL |
| ČSN |
| 42 6712 |
| standard |
| ČSN |
| 42 6712 |
| “ready to use” – HP |
| DIN |
| 2391-1 |
| for automotive industry |
| DIN |
| 2391-1 |
| for heat exchangers |
| DIN |
| 2391-1 |
| for high-pressure service – boiler |
| DIN |
| 2391-1 |
| for pressure hydraulic and pneumatic lines – HPL |
| DIN |
| 2391-1 |
| for room temperature pressure service |
| DIN |
| 2391-1 |
| standard |
| DIN |
| 2391 |
| for mechanical treatment – HPZ |
| DIN |
| 2391 |
| “ready to use” – HP |
| DIN |
| 2440 |
| suitable for welding or threading |
| DIN |
| 2441 |
| suitable for welding or threading |
| DIN |
| 2442 |
| suitable for welding or threading |
| DIN |
| 2445-2 |
| for pressure hydraulic and pneumatic lines – HPL |
| DIN |
| 2448 |
| – line pipe |
| DIN |
| 2448 |
| for high-pressure service – boiler |
| DIN |
| 2448 |
| for low-temperature pressure services |
| DIN |
| 2448 |
| for mechanical treatment, machine parts, and general use |
| DIN |
| 2448 |
| for room temperature pressure service |
| DIN |
| 2448 |
| for structural purposes |
| DIN |
| 2448 |
| from fine grain steel |
| DIN |
| 2448 |
| from fine grain steel |
| DIN |
| 2460 |
| suitable for welding or threading |
| DIN |
| 2605-1 |
| elbows for water and gas pipeline |
| DIN |
| 2605-1, 2 |
| elbows for elevated temperature |
| DIN |
| 2605-1, 2 |
| elbows for pipeline |
| DIN |
| 2605-1, 2 |
| elbows for general use |
| DIN |
| 2605-1, 2 |
| elbows for room temperature service |
| DIN |
| 2605-1, 2 |
| fine grain steel elbows |
| DIN |
| 2616-2 |
| reducers |
| DIN |
| 28180 |
| for heat exchangers |
| DIN |
| 28180 |
| for heat exchangers |
| EN ISO |
| ISO 3183 |
| – line pipe |
| EN |
| 10210-2 |
| for structural purposes |
| EN |
| 10216-1 |
| for room temperature pressure service |
| EN |
| 10216-2 |
| for heat exchangers |
| EN |
| 10216-2 |
| for high-pressure service – boiler |
| EN |
| 10216-3 |
| from fine grain steel |
| EN |
| 10216-4 |
| for low-temperature pressure services |
| EN |
| 10224 |
| suitable for welding or threading |
| EN |
| 10253-1 |
| elbows for general use |
| EN |
| 10253-1 |
| reducers |
| EN |
| 10253-2 |
| elbows for elevated temperature |
| EN |
| 10253-2 |
| elbows for low temperature |
| EN |
| 10253-2 |
| elbows for pipeline |
| EN |
| 10253-2 |
| elbows for room temperature service |
| EN |
| 10253-2 |
| fine grain steel elbows |
| EN |
| 10255 |
| suitable for welding or threading |
| EN |
| 10294-1 |
| for mechanical treatment, machine parts, and general use |
| EN |
| 10294-1 |
| for mechanical treatment, machine parts, and general use |
| EN |
| 10297-1 |
| for mechanical treatment, machine parts, and general use |
| EN |
| 10297-1 |
| for mechanical treatment, machine parts, and general use |
| EN |
| 10297-1 |
| for mechanical treatment, machine parts, and general use |
| EN |
| 10305-1 |
| for automotive industry |
| EN |
| 10305-1 |
| for mechanical treatment – HPZ |
| EN |
| 10305-1 |
| standard |
| EN |
| 10305-1 |
| “ready to use” – HP |
| EN |
| 10305-4 |
| for pressure hydraulic and pneumatic lines – HPL |
| GOST |
| 1060 |
| for heat exchangers |
| GOST |
| 12132 |
| standard |
| GOST |
| 3262 |
| suitable for welding or threading |
| GOST |
| 8732 |
| for mechanical treatment, machine parts, and general use |
| GOST |
| 8732 |
| for high-pressure service – boiler |
| GOST |
| 8732 |
| for mechanical treatment, machine parts, and general use |
| GOST |
| 8732 |
| for room temperature pressure service |
| GOST |
| 8732 |
| for structural purposes |
| GOST |
| 8734 |
| standard |
| GOST |
| 8734 |
| for heat exchangers |
| GOST |
| 8734 |
| for high-pressure service – boiler |
| GOST |
| 9567 |
| standard |
| GOST |
| 9567 |
| standard |
| GOST |
| TU 14-3-460 |
| for high-pressure service – boiler |
| JIS |
| G3445 |
| for mechanical treatment, machine parts and general use |
| JIS |
| G3445 |
| standard |
| JIS |
| G3454 |
| for room temperature pressure service |
| JIS |
| G3455 |
| for room temperature pressure service |
| JIS |
| G3456 |
| for high-pressure service – boiler |
| JIS |
| G3458 |
| for high-pressure service – boiler |
| JIS |
| G3461 |
| for heat exchangers |
| JIS |
| G3461 |
| for high-pressure service – boiler |
| JIS |
| G3462 |
| for heat exchangers |
| JIS |
| G3462 |
| for high-pressure service – boiler |
| JIS |
| JOHS-102 |
| for pressure hydraulic and pneumatic lines – HPL |
| NF A |
| 49-112 |
| for room temperature pressure service |
| NF A |
| 49-115 |
| suitable for welding or threading |
| NF A |
| 49-186 |
| elbows for room temperature service |
| NF A |
| 49-210 |
| for room temperature pressure service |
| NF A |
| 49-211 |
| for high-pressure service – boiler |
| NF A |
| 49-213 |
| for high-pressure service – boiler |
| NF A |
| 49-215 |
| for heat exchangers |
| NF A |
| 49-215 |
| for low-temperature pressure services |
| NF A |
| 49-281 |
| elbows for room temperature service |
| NF A |
| 49-310 |
| for automotive industry |
| NF A |
| 49-310 |
| standard |
| NF A |
| 49-311 |
| for mechanical treatment, machine parts, and general use |
| NF A |
| 49-312 |
| for mechanical treatment, machine parts, and general use |
| NF A |
| 49-312 |
| standard |
| NF A |
| 49-330 |
| for pressure hydraulic and pneumatic lines – HPL |
| NF A |
| 49-501 |
| for structural purposes |
| PN – H |
| 74 245 |
| for pressure hydraulic and pneumatic lines – HPL |
| PN – H |
| 74219 |
| for mechanical and general engineering purposes |
| PN – H |
| 74219 |
| for mechanical treatment and machine parts and general use |
| PN – H |
| 74219 |
| for mechanical treatment, machine parts, and general use |
| PN – H |
| 74219 |
| for room temperature pressure service |
| PN – H |
| 74220 |
| suitable for welding or threading |
| PN – H |
| 74240 |
| standard |
| PN – H |
| 74252 |
| for high-pressure service – boiler |
| PN ŽP |
| ŽP 42 5760 |
| elbows for elevated temperature |
| PN ŽP |
| ŽP 42 5760 |
| elbows for general use |
| PN ŽP |
| ŽP 42 5760 |
| elbows for low temperature |
| PN ŽP |
| ŽP 42 5760 |
| elbows for room temperature service |
| PN ŽP |
| ŽP 42 5760 |
| elbows for water and gas pipeline |
| STN |
| 13 2200 |
| reducers |
| STN |
| 13 2385 |
| reducers |
| STN |
| 42 5710 |
| suitable for welding or threading |
| STN |
| 42 5711 |
| suitable for welding or threading |
| STN |
| 42 5715 |
| for high-pressure service – boiler |
| STN |
| 42 5715 |
| for low-temperature pressure services |
| STN |
| 42 5715 |
| for mechanical treatment, machine parts, and general use |
| STN |
| 42 5715 |
| for room temperature pressure service |
| STN |
| 42 5715 |
| for structural purposes |
| STN |
| 42 5716 |
| for high-pressure service – boiler |
| STN |
| 42 5716 |
| for low-temperature pressure services |
| STN |
| 42 5716 |
| for mechanical treatment, machine parts, and general use |
| STN |
| 42 5716 |
| for room temperature pressure service |
| STN |
| 42 5716 |
| for mechanical treatment, machine parts, and general use |
| STN |
| 42 5716 |
| for high-pressure service – boiler |
| STN |
| 42 6710 |
| for heat exchangers |
| STN |
| 42 6710 |
| for high-pressure service – boiler |
| STN |
| 42 6710 |
| for low-temperature pressure services |
| STN |
| 42 6711 |
| for heat exchangers |
| STN |
| 42 6711 |
| for high-pressure service – boiler |
| STN |
| 42 6711 |
| for low-temperature pressure services |
| STN |
| 42 6711 |
| for mechanical treatment – HPZ |
| STN |
| 42 6711 |
| for pressure hydraulic and pneumatic lines – HPL |
| STN |
| 42 6711 |
| standard |
| STN |
| 42 6711 |
| “ready to use” – HP |
| STN |
| 42 6712 |
| for mechanical treatment – HPZ |
| STN |
| 42 6712 |
| for pressure hydraulic and pneumatic lines – HPL |
| STN |
| 42 6712 |
| standard |
| STN |
| 42 6712 |
| “ready to use” – HP |
| UNI |
| 4991 |
| for low-temperature pressure service |
| UNI |
| 6363 |
| suitable for welding or threading |
| UNI |
| 7088 |
| – line pipe |
| UNI |
| 7287 |
| for room temperature pressure service |
| UNI |
| 7287 |
| – line pipe |
| UNI |
| 7729 |
| for mechanical and general engineering purposes |
| UNI |
| 7729 |
| for mechanical treatment and machine parts and general use |
| UNI |
| 7945 |
| for pressure hydraulic and pneumatic lines – HPL |
| UNI |
| 7945 |
| standard |
| UNI |
| 8863 |
| suitable for welding or threading |
| UNI |
| ISO 1129 |
| for heat exchangers |
| UNI |
| ISO 1129 |
| for high-pressure service – boiler |
| UNI |
| ISO 4200 |
| for mechanical treatment, machine parts,, and general use |
Which Pipe is stronger? call U.K & Sons – The partners of India Shining.