In comparison to straight tubes, U shaped or U bend tubes offer the end user the flexibility to build a more compact system. Typically used in heat exchanger applications, the Stainless Steel U Bend Tube is ideal for applications involving heat and elevated pressure levels. In environments where the temperature is extremely high, a straight tube would be connected using an expansion joint. Not considering thermal expansion for straight tubes would have a disastrous causal effect on the application.
Not forgetting to mention, the cost of using an expansion joint brings up the cost of the application. However, using a Stainless Steel U Bend Tube For Heat Exchanger for the connection of a tube and the shell permits thermal expansion of the component, without an upcharge or an increase in price. Hence, using the Stainless Steel U Shaped Tubes is not only efficient but also a cost effective solution. Although the design of the component is a vital aspect in terms of its application, selecting the appropriate grade in the manufacture of the Stainless Steel U Shaped Tube is the other important parameter. Today, one can find various grades of stainless steel available in the market.
From the very economical grade alloy 304 to the marine grade alloy 316, the use of any grade Stainless Steel Tube U Bend is limitless. And because the longevity of the application also comes into view, one of the most desirable alloys is the Ss 316ti U Bend Tubes, which contains titanium added in its chemical composition. The addition of titanium in the alloy improves the high temperature performance of the Stainless Steel Welded U Tube, especially because the alloy forms titanium carbide instead of carbide precipitates, which is not fatal to welded components.
| Size | 6.35 Mm OD to 273 Mm OD |
| Outside Diameter | 9.52 mm O.D to 50.80 mm O.D |
| Thickness | 0.7 mm to 3.68 mm |
| Length | As per Customer requirement, Maximum upto 22 Meter Long. |
| Standards | ASTM A213, ASME SA213 |
| Type | Seamless Tubes, Welded Tubes |
| Grades | TP 304 Tube, TP 304L Tube, TP 304H, TP 316 Tube, TP 316L Tube, TP 316H, TP 316Ti Tube, TP 317L Tube, TP 321 Tube, TP 321H Tube, TP 347 Tube, TP 347H Tube, TP 202 Tube, JT 7 Tube, J4 1 Tube, TP 409 Tube, TP 409L Tube, TP 410 Tube, TP 430Ti Tube, TP 439 Tube |
| Finishing | It can be supplied in mechanical polished with various grits like at 80, 120, 240, 320, 400, 600 grits and mirror polished. |
| Wall thickness in mm. | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.2 | 1.6 | 2 | 2.6 | 3 | 3.2 | 3.6 |
| O.D. in mm. | Weight in kg/meter | |||||||||||
| 6 | 0.069 | 0.081 | 0.093 | 0.104 | 0.125 | 0.144 | 0.176 | – | – | – | – | – |
| 9.52 | 0.112 | 0.134 | 0.154 | 0.174 | 0.213 | 0.249 | 0.317 | – | – | – | – | – |
| 10 | 0.119 | 0.141 | 0.163 | 0.184 | 0.225 | 0.264 | 0.336 | – | – | – | – | – |
| 12.7 | 0.153 | 0.182 | 0.21 | 0.238 | 0.293 | 0.345 | 0.444 | – | – | – | – | – |
| 14 | 0.169 | 0.201 | 0.233 | 0.264 | 0.325 | 0.384 | 0.496 | – | – | – | – | – |
| 15.87 | 0.192 | 0.229 | 0.266 | 0.301 | 0.372 | 0.44 | 0.571 | 0.694 | – | – | – | – |
| 19 | 0.231 | 0.276 | 0.32 | 0.364 | 0.45 | 0.534 | 0.696 | 0.85 | 1.066 | 1.2 | 1.264 | – |
| 25 | 0.306 | 0.366 | 0.425 | 0.484 | 0.6 | 0.714 | 0.936 | 1.15 | 1.456 | 1.65 | 1.744 | 1.926 |
| 25.4 | 0.311 | 0.372 | 0.432 | 0.492 | 0.61 | 0.726 | 0.952 | 1.17 | 1.482 | 1.68 | 1.776 | 1.962 |
| 31.8 | – | – | – | – | – | 0.918 | 1.208 | 1.49 | 1.898 | 2.16 | 2.288 | 2.538 |
| 38 | – | – | – | – | – | 1.104 | 1.456 | 1.8 | 2.301 | 2.625 | 2.784 | 3.096 |
| 44.5 | – | – | – | – | – | 1.299 | 1.716 | 2.125 | 2.724 | 3.113 | 3.304 | 3.681 |
| 50.8 | – | – | – | – | – | 1.488 | 1.968 | 2.44 | 3.133 | 3.585 | 3.808 | 4.248 |
| 63.5 | – | – | – | – | – | – | 2.476 | 3.075 | 3.959 | 4.538 | 4.824 | 5.391 |
| 76.1 | – | – | – | – | – | – | 2.98 | 3.705 | 4.778 | 5.483 | 5.832 | 6.525 |
| 101.6 | – | – | – | – | – | – | 4 | 4.98 | 6 | 7 | 7,872 | 8.82 |
| Material | ASTM | Equivalent Standard | |||
| UNS | Grads (TP) | Din (EN) | Afnor (NF) | JIS | |
| Austenitic | S30400 | 304 | 1.4301 | Z 6 CN 18.09 | SUS 304 |
| S30403 | 304L | 1.4306 | Z 2 CN 18.10 | SUS 304L | |
| S31600 | 316 | 1.4401 | Z 6 CND 17.11 | SUS 316 | |
| S31603 | 316L | 1.4404 | Z 2 CND 17.12 | SUS 316L | |
| S31635 | 316Ti | 1.4571 | Z 2 CND 17.12 | – | |
| S32100 | 321 | 1.4541 | Z 6 CNT 18.10 | SUS 321 | |
| S34700 | 347 | 1.455 | Z 6 CNNb 18.10 | SUS 347 | |
| S30409 | 304H | 1.4948 | Z 6 CN 19.10 | SUS 304H | |
| S31609 | 316H | 1.4919 | Z 10 CND 18.10 | SUS 316H | |
| S32109 | 321H | 1.4941 | Z 10 CND 18.10 | SUS 321H | |
| Ferritic | S40500 | 405 | 1.4002 | Z 6 CAL 13 | SUS 405 |
| S41000 | 410 | 1.4002 | Z 12 C 13 | SUS 410 | |
| S43000 | 430 | 1.4016 | Z 10 C 17 | SUS 430 | |
| Duplex | S31803 | – | 1.4462 | Z 2 CND 22.06 | – |
| S32750 | 2507 | 1.4410 | Z 5 CND 20.12 | – | |
| S32760 | – | 1.4501 | – | – | |
