Stainless steel manhole standard
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Dear prawns, is HG/T20596-1999 invalid? Are there any new standards for stainless steel manholes and hand openings?
It should be "Stainless Steel Man, Hand Hole" HG21594-21604-1999, which is still valid.
Stainless steel manhole and hand hole standards HG21595, HG21596, 21597, 21599, 21600, 21601, 21602, 21603, 21604-1999
It is not invalidated. Please note that the 2005 version is an all-stainless steel manhole.
There are new standards. Steel manholes and handholes (HG_T_21514~21535-2005)
The latest standard is steel manholes and handholes (HG_T_21514~21535-2005)
HG/T21594 has not been invalidated. Most of them now use the new standard HG/T21514. These are complete sets of books. There should be posters in the forum who can download them and take a look. It should be the 2005 version
This post was last edited by SHISHOUHUA at 2009-5-5 05:11 "Stainless Steel Man, Hand Hole" HG21594-21604-1999. It is still a valid version. It is the same as HG_T_21514~21535-2005 is different
All I know is that it is not invalidated. The stainless steel hand hole standards HG21595~HG21604-1999 and HG/T21514~21535-2005 will be implemented at the same time. But I don’t know what the difference is between the stainless steel hand holes between the two. I would like an expert to help explain it.
HG21516, HG21522, HG21529, and HG21517 are all standards for manholes and hand holes.
Currently, the 2014 version of the stainless steel manhole standard will be launched soon and will be implemented on November 1, 2014.
This is a non-pressure vessel for us. The stainless steel is 99 and the carbon steel is 05. If it is a pressure vessel, both carbon steel and stainless steel must meet the 05 standard.