JSA - JIS G 3462
Alloy steel tubes for boiler and heat exchanger
|Publication Date:||20 May 2014|
|ICS Code (Iron and steel pipes):||23.040.10|
|ICS Code (Steel pipes and tubes for specific use):||77.140.75|
|ICS Code (Boilers and heat exchangers):||27.060.30|
This Standard specifies the alloy steel tubes (hereafter referred to as "tubes") used for exchanging heat between the inside and outside of the tube, such as water tubes, smoke tubes, superheated tubes and air preheater tubes of boilers, and heat exchanger tubes, condenser tubes and catalyst tubes used in chemical and petroleum industries. It is not applicable to the steel tubes for heating furnace and steel heat exchanger tubes for low temperature service.
This Standard applies to tubes with an outside diameter of 15.9 mm to 139.8 mm. With the previous agreement of the manufacturer the purchaser may designate the special quality requirements and designate U-bend tubes to be applied, given in Annex JA and Annex JB respectively in addition to the requirements specified in the text of this standard.
NOTE: The International Standards corresponding to this Standard and the symbol of degree of correspondence are as follows:
ISO 9329-2 : 1997 Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 2 : Unalloyed and alloyed steels with specified eleva ted tempera true properties
ISO 9330-2 : 1997 Welded steel tubes for pressure purposes - Technical delivery conditions - Part 2 : Electric resistance and induction welded unalloyed and alloyed steel tubes with specified elevated temperature properties (overall evaluation: MOD)
The symbols which denote the degree of correspondence in the contents between the relevant International Standards and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/lEC Guide 21-1.