| 摘要 |
PROBLEM TO BE SOLVED: To provide a fitting for conveying liquid chlorine made of nickel group alloy with corrosion resistance. SOLUTION: Use of a fitting made of nickel group alloy having a specific composition can achieve corrosion resistance due to high concentration hydrochloric acid caused by the liquid chlorine touching moisture in the air. This fitting is used for a conveyance pipe for conveying liquid chlorine. When the fitting is jointed to the pipe, at least the conveyance pipe and an end on the opposite side comprise a nickel group alloy contain Cr of 14-23 wt.%, Mo of 15-24 wt.%, Ta of 1.1-3 wt.%, Fe of 6 wt.% or less, Mn of 3 wt.% or less, Si of 0.3 wt.% or less, C of 0.1 wt.% or less, P of 0.3 wt.% or less, S of 0.3 wt.% or less, Co of 5 wt.% or less, V of 0.5 wt.% or less, and nickel of the rest.
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