B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 1/08 (2006.01) B32B 15/01 (2006.01) B32B 15/18 (2006.01) F16L 9/02 (2006.01) F16L 9/14 (2006.01) F16L 9/18 (2006.01)
Patent
CA 2076513
The invention provides a tube assembly with improved resistance to thermal fatigue and stress corrosion for usage in soda recovery units. The assembly comprises an inner tubing of a conventional carbon steel and an outer liner of a Cr-Ni-Mo-Fe-based alloy with austenitic structure which contains, in weight-%, 0.01-0.04C, 19.5-23.5 Cr, 38-46 Ni, 2.5-3.5 Mo, up to 0.5 Si, up to 0.3 N, and the remainder being Fe, except normal impurities.
Gowling Lafleur Henderson Llp
Sandvik Intellectual Property Ab
LandOfFree
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