Stainless Steel Welded Tube
Austenitic / Duplex Steel / Nickel Alloy / Cobalt AlloyMTSCO 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 tubes are have a very important position in our all products .
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1 Inch TP321 / 321H Stainless Steel Heat Exchanger U Bend Welded Tube For Chemical Industry
MTSCO 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 tubes are have a very important position in our all products .
| Process : |
| 1 . We use Cold Drawn techonology 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 position or as customer's 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 |
Chemical Composition
| C(max) | Si(max) | P(max) | S(max) | Cr | Ni | Mo | Ti | |
| TP304/1.4301 | 0.080 | 1.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-10.5 | ||
| TP304L/1.4307 | 0.035 | 1.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-12.0 | ||
| TP304H/1.4948 | 0.04-0.10 | 1.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-12.0 | ||
| TP316/1.4401 | 0.080 | 1.00 | 0.045 | 0.030 | 16.0-18.0 | 11.0-14.0 | 2.0-3.0 | |
| TP316L/1.4404 | 0.035 | 1.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | |
| TP316Ti/1.4571 | 0.080 | 1.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 0.7>5x(C+N) |
| TP321/1.4541 | 0.080 | 1.00 | 0.045 | 0.030 | 17.0-19.0 | 9.0-12.0 | 0.7>5x(C+N) | |
| TP317L/1.4449 | 0.080 | 1.00 | 0.045 | 0.030 | 18.0-20.0 | 11.0-14.0 | 3.0-4.0 | |
| TP347H/1.4912 | 0.04-0.10 | 1.00 | 0.045 | 0.030 | 17.0-19.0 | 9.0-13.0 | ||
| TP309S/1.4833 | 0.080 | 1.00 | 0.045 | 0.030 | 22.0-24.0 | 12.0-15.0 | 0.75 | |
| TP310S/1.4845 | 0.080 | 1.00 | 0.045 | 0.030 | 24.0-26.0 | 19.0-22.0 | 0.75 |
Manufacturing Experience
Plant Area
Max Diameter of Welded Pipe
Annealing Furnace Length
Nickel Alloy
NI-MO: N10001,N10665,N10675...
NI-CR-MO: N10276,N06022,N06035,N06455,N06002...
NI-CR-MO-CU: N06030,N06200,N08031,N08825,N08020...
NICR-MO-W: N06230...
NICKEL: N02200,N02201...
NI-CU: N04400,N05500...
NI-CR-FE: N06600,N06601,N06690,N08800,N08810,N08811...
NI-CR-MO-NB: N06625,N07718...
Austenitic
304/L/H/N, 316/L/H/N/Ti, 321/H, 309/H, 310S, 347/H, 317/L, 904L...
Duplex Steel
31803, 32205, 32750, 32760...
Cobalt Alloy
Alloy 188/ UNS R30188, Alloy L-605/ UNS R30605, Alloy S-816, Alloy 6B, UMCo50, FSX-414, MP-159...
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