Mitchell Stainless is a reliable manufacturer and supplier of top-notch Stainless Steel U Tubes based in Hamilton, New Zealand. They cater to a variety of industrial needs with precision-engineered products. With a strong focus on innovation, dependability, and customer satisfaction, the company provides U tubes that adhere to strict international standards. Their cutting-edge manufacturing processes guarantee outstanding durability, corrosion resistance, and performance even in tough environments. Renowned for their timely deliveries and exceptional craftsmanship, Mitchell Stainless serves industries like petrochemical, power generation, and heat-exchange systems throughout New Zealand. As a leading supplier, they offer customized solutions aimed at boosting operational efficiency and long-term value.
The Stainless Steel U Tubes from Mitchell Stainless are typically made from grades such as 304, 316, and 316L, which include chromium, nickel, and molybdenum to enhance corrosion resistance. These alloys provide excellent tensile strength, good yield properties, and remarkable toughness, even at high temperatures. The tubes are highly resistant to oxidation, pitting, and stress corrosion cracking, making them perfect for heat-transfer applications. With their consistent wall thickness, precise bend radius, and superior dimensional accuracy, they ensure reliable performance in condensers, boilers, and heat-exchanger systems that operate under high pressure and temperature conditions.
| Size Range | 10 mm OD to 50.8 mm OD |
| Stainless Steel U Tube Outside Diameter | 6.00 mm to 101.60 mm |
| Wall Thickness | 0.70 mm to 8.00 mm |
| Length | up to 20 m (65.62 ft) Length & Customed Required Length |
| Stainless Steel Heat Exchanger Tube Dimenisons | ASTM, AISI, ASME/ ANSI, JIS, DIN, EN, GB, BS, SUS |
| Standard | ASTM A 213, A 268, A 269, A 789, Equivalent to ASME, EN, JIS Etc. |
| Stainless Steel U tube Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Ti | Fe | |
| 304 | min. | 18.0 | 8.0 | |||||||||
| max. | 0.08 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 10.5 | 0.10 | ||||
| 304L | min. | 18.0 | 8.0 | |||||||||
| max. | 0.030 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 12.0 | 0.10 | ||||
| 304H | min. | 0.04 | 18.0 | 8.0 | ||||||||
| max. | 0.010 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 10.5 | |||||
| SS 310 | 0.015 max | 2 max | 0.015 max | 0.020 max | 0.015 max | 24.00 26.00 | 0.10 max | 19.00 21.00 | 54.7 min | |||
| SS 310S | 0.08 max | 2 max | 1.00 max | 0.045 max | 0.030 max | 24.00 26.00 | 0.75 max | 19.00 21.00 | 53.095 min | |||
| SS 310H | 0.04 0.10 | 2 max | 1.00 max | 0.045 max | 0.030 max | 24.00 26.00 | 19.00 21.00 | 53.885 min | ||||
| 316 | min. | 16.0 | 2.03.0 | 10.0 | ||||||||
| max. | 0.035 | 2.0 | 0.75 | 0.045 | 0.030 | 18.0 | 14.0 | |||||
| 316L | min. | 16.0 | 2.03.0 | 10.0 | ||||||||
| max. | 0.035 | 2.0 | 0.75 | 0.045 | 0.030 | 18.0 | 14.0 | |||||
| 316TI | 0.08 max | 10.00 14.00 | 2.0 max | 0.045 max | 0.030 max | 16.00 18.00 | 0.75 max | 2.00 3.00 | ||||
| 317 | 0.08 max | 2 max | 1 max | 0.045 max | 0.030 max | 18.00 20.00 | 3.00 4.00 | 57.845 min | ||||
| SS 317L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 20.00 | 3.00 4.00 | 11.00 15.00 | 57.89 min | |||
| SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 19.00 | 9.00 12.00 | 0.10 max | 5(C+N) 0.70 max | |||
| SS 321H | 0.04 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 19.00 | 9.00 12.00 | 0.10 max | 4(C+N) 0.70 max | |||
| 347/ 347H | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 20.00 | 9.0013.00 | |||||
| 410 | min. | 11.5 | ||||||||||
| max. | 0.15 | 1.0 | 1.00 | 0.040 | 0.030 | 13.5 | 0.75 | |||||
| 446 | min. | 23.0 | 0.10 | |||||||||
| max. | 0.2 | 1.5 | 0.75 | 0.040 | 0.030 | 30.0 | 0.50 | 0.25 | ||||
| 904L | min. | 19.0 | 4.00 | 23.00 | 0.10 | |||||||
| max. | 0.20 | 2.00 | 1.00 | 0.045 | 0.035 | 23.0 | 5.00 | 28.00 | 0.25 | |||
| Stainless Steel U tube Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 304/ 304L | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
| 304H | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 40 % |
| 310 / 310S / 310H | 7.9 g/cm3 | 1402 °C (2555 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 40 % |
| 306/ 316H | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
| 316L | 8.0 g/cm3 | 1399 °C (2550 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
| 317 | 7.9 g/cm3 | 1400 °C (2550 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
| 321 | 8.0 g/cm3 | 1457 °C (2650 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
| 347 | 8.0 g/cm3 | 1454 °C (2650 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
| 904L | 7.95 g/cm3 | 1350 °C (2460 °F) | Psi 71000 , MPa 490 | Psi 32000 , MPa 220 | 35 % |
Contact us to get a quick quote for your requirement.
Client satisfaction by all means forms the top priority with regard to the quality of our Stainless Steel U Tubes. In pursuit of this objective, all our products are given stringent quality assurance regime, which includes hardness tests, chemical analysis by way of spectro analysis, positive material identification (PMI), flattening tests, micro and macro tests, pitting resistance tests, flaring tests and intergranular corrosion (IGC) tests.
To maintain Stainless Steel U Tubes, regularly clean them with mild soap and water to remove dirt and grime. Avoid harsh chemicals and abrasive cleaners. Inspect for signs of corrosion or damage and address any issues promptly.
Stainless Steel U Tubes are highly resistant to corrosion due to their chromium content. However, under extreme conditions like exposure to harsh chemicals or saltwater, corrosion can still occur over time.
Yes, Stainless Steel U Tubes can be used for natural gas applications. They offer excellent corrosion resistance and durability, making them suitable for handling natural gas in various industrial systems.
Mitchell Stainless’s Stainless Steel U Tubes are extensively utilized in heat exchangers, condensers, and boiler systems, thanks to their outstanding heat-transfer efficiency and resistance to corrosion. They play a crucial role in various industries, including petrochemical, power generation, chemical processing, pharmaceuticals, and food processing. These tubes are particularly suited for environments that experience high pressure, temperature fluctuations, and corrosive fluids. U tubes are designed to optimize space within heat-exchange equipment, ensuring efficient operation and longevity in demanding applications.
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