Abstract:
Addressing the proviso as under relevant domestic contractual technical agreements for power plant boilers which says that
hi-grade heat-resistant steels as used must be imported,the main aspects concerning heat-resistant steel pipes/tubes as made at home and abroad are analyzed,including the present manufacture situations,the actual pipes/tubes quality,the standard differences and the technical feedbacks from the supplier, etc.Accordingly, it is discussed how to determine the suitability for import of the hi-grade heat-resistant steel pipes/tubes.The analysis leads to such a conclusion that the domestically-made hi-grade heat-resistant pipes/tubes(e.g.the Gr.92,S30432 and TP310HCbN pipes/tubes) have been up to the quality level of those as imported,and have been more comprehensively advantageous in terms of purchase cycles,technical response and service,and cost,etc.Therefore it is suggested the above mentioned proviso be removed from the said technical agreement.