1 Scope
This document specifies the requirements for the product forms for use in pressure parts of water-tube boilers and for parts welded on to pressure parts:
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• plates;
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• wrought seamless tubes;
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• electrically welded tubes;
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• submerged, plasma and TIG arc-welded tubes;
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• forgings;
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• castings;
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• rolled bars;
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• welding consumables;
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• fasteners;
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• seamless composite tubes.