Jiaxing MT stainless steel co.,ltd.
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TP304L 25.4*2.11mm U Bend Stainless Steel Heat Exchanger Tube
Heat Exchanger Tube:
Our heat exchanger tube with pickling and annealing surface is very popular in boilers and heat exchangers industry , water heater industry , air-conditioning industry, etc. This kind of seamless tube has a very important position in our all products.
Heat Exchanger Tube Chemical Composition——Basic Raw Materials:
| ASTM/UNS | C (max) | Si (max) | Mn (max) | P (max) | S (max) | Cr | Ni | Mo | Ti |
| TP304/S30400 | 0.080 | 1.00 | 2.00 | 0.045 | 0.03 | 18.0-20.0 | 8.0-10.5 |
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| TP304L/S30403 | 0.035 | 1.00 | 2.00 | 0.045 | 0.03 | 18.0-20.0 | 8.0-13.0 |
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| TP304H/S30409 | 0.04-0.10 | 1.00 | 2.00 | 0.045 | 0.03 | 18.0-20.0 | 8.0-11.0 |
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| TP316/S31600 | 0.080 | 1.00 | 2.00 | 0.045 | 0.03 | 16.0-18.0 | 11.0-14.0 | 2.0-3.0 |
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| TP316L/S31603 | 0.035 | 1.00 | 2.00 | 0.045 | 0.03 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
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| TP316Ti/S31635 | 0.080 | 1.00 | 2.00 | 0.045 | 0.03 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 0.7>5x(C+N) |
| TP321/S32100 | 0.080 | 1.00 | 2.00 | 0.045 | 0.03 | 17.0-19.0 | 9.0-12.0 |
| 0.7>5x(C+N) |
| TP317L/S31703 | 0.035 | 1.00 | 2.00 | 0.045 | 0.03 | 18.0-20.0 | 11.0-15.0 | 3.0-4.0 |
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| TP347H/S34709 | 0.04-0.10 | 1.00 | 2.00 | 0.045 | 0.03 | 17.0-19.0 | 9.0-13.0 |
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| TP309S/S30908 | 0.080 | 1.00 | 2.00 | 0.045 | 0.03 | 22.0-24.0 | 12.0-15.0 | 0.75 |
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| TP310S/S31008 | 0.080 | 1.00 | 2.00 | 0.045 | 0.03 | 24.0-26.0 | 19.0-22.0 | 0.75 |
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Heat Exchanger Tube Application:
a) Petroleum, Chemical enterprise, superheater of boiler and heat exchanger
b) High temperature-resistant transmission fluid pipe in power station
c) Ship with pressure pipe
d) Exhaust purification device
e) Construction and ornament
f) solar industry, military, semiconductor, etc
Heat Exchanger Tube Process :
1 . We use Cold Drawn technology to produce U bend tube
2. U bend tubes produce will accordance to customer's drawings
3 . To avoid oxidation, inert gas (Argon) is passed through tubes ID at the required flow rate
4 . The radius is checked for its OD and wall thinning with the recommended specification
5 . We'll choose three different positions or as customers require to make sure tubes quality. We'll do physical properties and micro-structure test
6 . Visual inspection for waviness and cracks is done with Dye Penetrant Test
7 . Each tube is then hydro tested at the recommended pressure to check for leakage
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