Duplex stael 904l nas 255 N08904 W.NR.1.4539 Bolts Puts Stud Wither na Dun ISI Standard
Nchara nchara 304 na-enweghị atụ na-enweghị atụ si? sentimita asatọ na iri na isii, eww pipes si? sentimita iri abụọ na anọ na EFW Pipes sitere na sentimita 6 ruo 100 sentimita asatọ. Nha nke ọkpọkọ niile sitere na 1 \ / 8 sentimita asatọ. A na-eji mpempe akwụkwọ mpempe akwụkwọ na-adịghị nchara emeghe. Na enweghị nsogbu, welded ma ọ bụ lsaw pipes dịgasị iche iche n'ụdị dị ka ogige gburugburu, square, akụkụ akụkụ nke akụkụ anọ.
904L (N08904, 14539) Super na-enweghị igwe anaghị agba nchara dị 14.0% chromium, 24.0% nickel, 4.5% molybdenum. 904L Super Ochienitic nchara bụ obere carbon dị ala, elu-nickel, molybdenum kpụ ọkụ n'ọnụ nke na-eguzogide nchara, nke bụ ihe ebubata site na ụlọ ọrụ French H¡¤. Ọ nwere ikike ịme mgbanwe dị mma, iguzogide, nguzogide corrosion acid, na-acha acid acid, na-eto eto corrosion na-eguzogide na-eguzogide na nrụgide corrosion. Ọ dị mma maka ịntụ dị iche iche nke sulfuric acid dị n'okpuru 70 ¡¡¡¡¡¡¡¡¡¡¡¡¡¡Iconguri nguzo nke uche na okpomoku di iche-iche acid na acetic acid.