A cikin rukunin samarwa na petrochemical, yawancin chromium molybdenum karfe da chromium molybdenum vanadium karfe maras sumul karfe bututu matsayin.

GB9948 Bututun Karfe mara sumul don Fashewar Man Fetur

GB6479 "Bututun Karfe mara ƙarfi don Kayayyakin Taki"

GB/T5310"Seamless karfe bututu for high matsa lamba tukunyar jirgi"

GB9948ya ƙunshi chromium molybdenum karfe abu sa: 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo da sauransu.

GB6479ya ƙunshi chromium molybdenum karfe abu sa: 12CrMo, 15CrMo, 1Cr5Mo, da dai sauransu.

GB/T5310 ya ƙunshi chromium molybdenum karfe da chromium molybdenum-vanadium karfe kayan sa: 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, da dai sauransu.

Bututun Karfe mara sumul don Maɗaukakin Zazzabi

Bututun ƙarfe mara nauyi da austenitic Alloy Karfe don Boilers, superheaters da masu musayar zafi

ASTM A333 - Bututun ƙarfe na ƙarfe mara ƙarfi da weld don amfanin Cryogenic

ASTM A335– Sumul ferritic gami Karfe Nominal bututu don High zafin amfani

TS EN 10216-2 Bututun ƙarfe mara ƙarfi da gami da ƙayyadaddun kaddarorin zafin jiki

Matsayin kayan ƙarfe da aka haɗa a cikin ASTM A106: Gr.B, Gr.C

ASTM A213ya hada da maki na karfe: T11,T12,T22,T23,T91

ASTM A333 / A335M ya ƙunshi alamar kayan ƙarfe: P11, P12, P22, P5, P9, P91, P92