Na nkeji mmepụta petrochemical, a na-ejikarị chromium molybdenum steel na chromium molybdenum vanadium steel eme ihe ọkọlọtọ ọkpọkọ ígwè na-enweghị ntụpọ.

Ọkpọkọ ígwè GB9948 nke na-enweghị ntụpọ maka mgbawa mmanụ ala

GB6479 "Ọkpọkọ ígwè na-enweghị nrụgide dị elu maka ngwa fatịlaịza"

GB/T5310"Paịpụ ígwè na-enweghị ntụpọ maka boiler nrụgide dị elu"

GB9948nwere ọkwa ihe eji eme ígwè nke chromium molybdenum: 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo na ndị ọzọ.

GB6479nwere chromium molybdenum ihe eji eme ihe ígwè: 12CrMo, 15CrMo, 1Cr5Mo, wdg.

GB/T5310 nwere chromium molybdenum ígwè na chromium molybdenum-vanadium ígwè ihe dị iche iche: 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, wdg.

Pipe ígwè carbon enweghị ntụpọ maka okpomọkụ dị elu

Ọkpọkọ ígwè ferritic na austenitic Alloy nke na-enweghị ntụpọ maka ndị na-agba mmiri ọkụ, ndị na-ekpo ọkụ na ndị na-agbanwe okpomọkụ.

ASTM A333 — Tubes ígwè aha anaghị agba nchara ma ọ bụ nke a gbanyere agbaze maka ojiji Cryogenic

ASTM A335– Iron Iron Pipe anaghị agba nchara maka ojiji okpomọkụ dị elu

EN 10216-2 - Tubọn ígwè na-abụghị alloy na alloy nwere ihe onwunwe okpomọkụ dị elu akọwapụtara

Ọkwa nke ihe eji ígwè arụ ọrụ dị na ASTM A106: Gr.B,Gr.C

ASTM A213gụnyere ọkwa ígwè: T11, T12, T22, T23, T91

ASTM A333 / A335M nwere akara ihe eji eme ígwè: P11, P12, P22, P5, P9, P91, P92