ASTM A688 TP304/304L/304LN , TP316/316L/316LN Welded Austenitic Stainless Steel Feedwarter Heater Tubes
Size range:
O.D.: 4.0-230mm W.T.:1-30mm L: according to customer requirement
Material and Manufacture:
Tubes are made from Flat-rolled steel by automatic welding process.
Subsequent to welding and prior to final heat treatment, the tubes are cold drawn or cold rolled
The tubes are ready for U-bending after annealed, according to customer's drawing and design.
Suface Condition:
The tubes are pickled innitric and hydraofluoric acids.
Bright annealing.
Mechanical Requirement
| Grade: | TP304 | TP304L | TP304LN | TP316 | TP316L | TP316LN | TP316LN | TPXM-29 | TP304N |
| UNS | S30400 | S30403 | S30453 | S31600 | S31603 | S31653 | S31653 | S24000 | S30451 |
| C, max | 0.08 | 0.035 | 0.035 | 0.080 | 0.035 | 0.035 | 0.035 | 0.08 | 0.080 |
| Mn, max | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 11.5-14.5 | 2.00 |
| P, max | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 |
Welded Austenitic Stainless Steel Tube for Tubular Feed Water Heaters
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