In fact, we highly recommend using the 625-alloy-seamless-steel-square-pipe in those areas where grade 316 alloy is prone to stress related corrosion cracking. The difference between Alloy 20 and an alloy 20cb3 Pipe is that the CB3 designated pipe has been stabilized with the addition of element colombium in its alloy.
Size range of 625-alloy-seamless-steel-square-pipe
| Pipe WT mm | WERKSTOFF NR. 2.4660 Pipe OD mm | Sch | in.0 | Kg/m |
|---|---|---|---|---|
| 1.065 | 13.072 | 10S | 1/4 | 0.050 |
| 2.024 | 13.072 | 40S | 1/4 | 0.064 |
| 3.002 | 13.072 | 80S | 1/4 | 0.081 |
| 1.065 | 17.015 | 10S | 3/8 | 0.064 |
| 2.031 | 17.015 | 40S | 3/8 | 0.086 |
| 3.020 | 17.015 | 80S | 3/8 | 1.012 |
| 2.011 | 21.034 | 10S | 1/2 | 1.002 |
| 2.077 | 21.034 | 40S | 1/2 | 1.029 |




625-alloy-seamless-steel-square-pipe is required to be furnished in any of the following conditions i.e. either stabilized annealed condition or solution annealed condition. Further, the 625-alloy-seamless-steel-square-pipe could also be furnished in an annealed condition, as well.
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