6.5 For welded tubes, the height of the internal weld fin shall not be greater than 60 percent of the specified wall thickness. 6.6 All electric welded tubes used for steam services shall be normalized. Only medium and heavy class of tube shall normally be used for steam services. NOTE —...
IS-1239-1-2004.pdf 《IS-1239-1-2004.pdf》由会员分享,可在线阅读,更多相关《IS-1239-1-2004.pdf(12页珍藏版)》请在人人文库网上搜索。 is 1239(part 1 ) :2004 indianstandard steel tubes,tubularsand other wrought steel fittings specification part1steeltubes (sixth revision) lcs 77.140.75 bis2004...