公开(公告)号：US4171218A

公开(公告)日：1979-10-16

申请号：US907345

申请日：1978-05-18

申请人： Taiji Hoshino ,  Masao Okubo ,  Masayoshi Miki

发明人： Taiji Hoshino ,  Masao Okubo ,  Masayoshi Miki

IPC分类号： C22C38/00 ,  C22C38/26 ,  C22C38/28 ,  F16J3/04 ,  C22C38/02 ,  C22C38/48 ,  C22C38/50

CPC分类号： C22C38/28 ,  C22C38/26 ,  F16J3/047 ,  Y10T29/49877

摘要： An anticorrosive bellows made of stainless steel containing 0.10% by weight or less of C, 2.5-5% by weight of Si, 2% by weight or less of Mn, 15-20% by weight of Cr, 10-22% by weight of Ni, 10 times or more as much as the C content but at most 2.5% by weight of at least one element selected from the group consisting of Ta and Zr, and the remainder consisiting substantially of Fe shows excellent corrosion resistance even under strongly corrosive circumstances, e.g. fuming or concentrated nitric acid. Said stainless steel has improved workability, weldability and endurance and the produced bellows can be used as a bellows valve, a bellows joint, and the like.

摘要翻译： 由不锈钢制成的防锈波纹管，含有0.10重量％以下的C，2.5-5重量％的Si，2重量％以下的Mn，15〜20重量％的Cr，10〜22重量％ 的Ni，比C含量高10倍以上，但至少2.5重量％的选自Ta和Zr的至少一种元素，其余基本上由Fe组成，即使在强腐蚀性下也具有优异的耐腐蚀性 情况，例如 发烟或浓硝酸。 所述不锈钢具有提高的可加工性，可焊性和耐久性，并且生产的波纹管可用作波纹管阀，波纹管接头等。