fluorine lining gate valve

Domestic valve - Common technical standards and technical conditions of ductile iron materials, mechanical properties of attached casting samples

by:Lianke Valve     2022-09-23
Common technical standards for domestic valve materials Technical conditions of ductile iron, mechanical properties of the attached cast samples Organization QT400-18>30~6039025018130~180 ferrite>60~20037024012QT400-15A>30~6039025015130~180 ferrite>60~20037024012QT500-7A>30~60450300702170~200 ferrite Note: The letter 'A' indicates the mechanical properties of the grade measured on the additional cast sample to distinguish the mechanical properties measured on the single cast sample.
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