This standard specifies titanium pipes and titanium alloy pipes (hereinafter referred to as pipes). Specifies titanium pipes and titanium alloy pipes (hereinafter referred to as pipes).
JIS H 4631:2006 history
2018JIS H 4631:2018 Titanium and titanium alloys -- Welded tubes for heat exchangers
2012JIS H 4631:2012 Titanium and titanium alloys -- Tubes for heat exchangers
2006JIS H 4631:2006 Titanium and titanium alloy tubes for heat exchangers
2001JIS H 4631:2001 Titanium and titanium alloy tubes for heat exchangers