Waro kowiri tira Tee Astm A234 WPB rite tee 90 tohu
Ko enei A234 WPB B16.9 e whakamahia ana i roto i te hanga pūnaha putorino. Kei te hangaia e matou he ASTM A234 WPBaker mai i nga paipa ma te whakamahi i te "Mandrel" te tikanga e taea ai te putorino ki te whakawhānui me te tohe i te wa kotahi.
Whakapā mai
Whiwhi utu
Hoatu:
Toka te manawa
Ko tenei momo rino e kiia ana i te 1700 ki te 2200ã lAhrenheit a ka whai i te quenching me te whakamataku. I te wa e pa ana a Annealing, kua maroke nga waahanga kua hangaia ki raro iho i te 1000ã FAhrenheit, ka utua ano ki te 1550 ki te 1700ã lehrenheit, e whai ana i te ngoikore-ngoikore.
Pakirehua
He nui ake te kowiri tira