ASTM A335 waa tilmaanta caadiga ah ee loogu talagalay shahaadada xasaasiga ah ee xarkaha birta birta ee loo yaqaan 'pipe' bir ah oo heerkulka sare ah. Covers server levels: P1, P2, P5, P5b, P5c, P9, P11, P12, P15, P21, P22, P23, P91, P92, P122, of which P5, P9, P11, P22, P91, P92 are used in practice the most extensive. Sideyntani waxay daboolaysaa magacaabista iyo kan ugu yar ee darbiga-molybdenum (oo sidoo kale loo yaqaan cr-mol mo ama moly) birta birta birta ee aswiifeedka ugu hooseeya ee codsiyada heerkulka sare. Tuubbada lagu amro in la caddeeyo ayaa ku habboon foorarsiga, qalliinka la midka ah iyo qaab dhismeedka la midka ah, iyo alxanka dhexda. ASTM A335 P11, P22, P91 iyo P92 iyo P92 waxaa badanaa loo adeegsadaa dhirta korantada iyo warshadaha kiimikada iyo patrochemical iyo p5 inta badan waxaa loo isticmaalaa nadiifinta saliida.
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ASTM A335 P5, P9, P11, P12, P22, P91, P107