I roto i nga waahanga whakangao petrochemical, ka whakamahia noa te chromium molybdenum maitai me te chromium molybdenum vanadium maitai nga paerewa paipa maitai tuitui.

GB9948 Paipa maitai kore mo te pakaru hinu

GB6479 "Pehanga Teitei Te Paipa Maamaa Maamaa mo nga Taputapu Wairakau"

GB/T5310“Pupa maitai tuitui mo te kohua teitei”

GB9948kei roto chromium molybdenum maitai kōeke rauemi: 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo me te pera i runga i.

GB6479kei roto chromium molybdenum maitai kōeke rauemi: 12CrMo, 15CrMo, 1Cr5Mo, etc.

GB/T5310 kei roto chromium molybdenum maitai me chromium molybdenum-vanadium rauemi maitai kōeke: 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, etc.

Paipa Wao Wao Tukino mo te Pawera Nui

Ngongo maitai ferritic me austenitic Alloy Steel mo nga Kohua, whakawera me te whakawhiti wera.

ASTM A333 — Korekore me te paiherea Nominal Steel ngongo mo te whakamahi Cryogenic

ASTM A335– Koranu ferritic koranu maitai Pupa Nominal mo te whakamahi pāmahana High

EN 10216-2 - Ko nga ngongo rino kore-kotahi me te koranu me nga ahuatanga o te pāmahana teitei

Koeke o nga mea maitai kei roto i te ASTM A106: Gr.B,Gr.C

ASTM A213kei roto nga tohu rino: T11,T12,T22,T23,T91

Kei roto i te ASTM A333 / A335M te tohu taonga maitai: P11, P12, P22, P5, P9, P91, P92