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Japanese steel in French nuclear facilities found to have high impurity level
Japanese steel in French nuclear facilities found to have high impurity level
KYODO
SEP 14, 2016
Steel supplied by Kitakyushu manufacturer Japan Casting & Forging Corp. to nuclear facilities in France has been named in an investigation that found it had a high level of impurity, the nuclear watchdog said.
The Nuclear Regulation Authority said the standard for carbon content in metals — a gauge of impurity — is below 0.22 percent in France, while the figure is below 0.25 percent in Japan.
But in some products provided by Japan Casting & Forging Corp. for some nuclear facilities, carbon content in steel was over 0.3 percent.
The NRA said it had recently been briefed by French regulators and needed to carry out its own tests to determine the quality of the steel.
The higher the concentration of impurity in steel, the weaker the product....
http://www.japantimes.co.jp/news/2016/09/14/national/japanese-steel-french-nuclear-facilities-found-high-impurity-level/#.V9r_uDth2Rt
I'm sure they'll find that the original design specs were really nothing more than a suggestion, merely a bit of whimsical thought that flitted through the daydreams of the original designers...
