Lub valve nrog astm A350 forged lossis nplhaib-dov flangesfored lossis nplhaib-dov flanges
Raws li peb paub, Astm A234 cov yeeb nkab hlau fittings raug siv hauv kev siab preeming thiab hauv siab rau cov kev pab cuam fab, rau cov kev pab cuam ntawm nruab nrab thiab nce qhov kub. The fittings material in this standard consist of killed steel, forgings, bars, plates, seamless or fusion-welded tubular products with filler metal added.
ASTM A234 Qib WPB lauj kaub hauv ntau yam. Peb tab tom muab cov no elbws thoob plaws raws li cov kev cai ntawm cov neeg yuav khoom. ASTM A234 WPB Luj tshib yog tsim los ntawm cov khoom siv steel uas hnav thiab kua muag thiab lwm yam ntawm cov fittings thiab lwm hom fittings hauv tib qib. Cov yeeb nkab steel hlau haum yog ua los ntawm cov pa roj carbon lossis cov hlau nplaum alloy, rau ib qho kev coj ua uas tuaj yeem ua tau haujlwm (hloov cov dej haus dej (hloov cov raj roj av.