Umuyoboro w'icyuma udafite icyuma ni ibikoresho-bikoreshwa cyane mu nganda no mu bwubatsi. Ikintu nyamukuru kiranga ni ukunoza imiterere yubukanishi, kurwanya ruswa hamwe nubushyuhe bwo hejuru bwumuyoboro wibyuma wongeyeho ibintu bitandukanye bivanze, nka chromium, molybdenum, nikel, nibindi bikurikira.

ASTM A335Uruhererekane:

P5: Umuyoboro w'icyuma P5 urimo chromium 5% na molybdenum 0,5%, ufite imbaraga zo kurwanya okiside hamwe nubushyuhe bwo hejuru, kandi akenshi ikoreshwa mumiyoboro yubushyuhe bwo hejuru hamwe ninganda za peteroli.
P9: Umuyoboro wa P9 urimo chromium 9% na molybdenum 1%, ufite imbaraga zo kurwanya okiside hamwe no kurwanya ruswa kurusha P5, kandi ikwiranye nubushyuhe bwo hejuru hamwe n’umuvuduko mwinshi.
P11: Umuyoboro w'icyuma P11 urimo chromium 1,25% na molybdenum 0.5%, ufite imikorere isumba iyindi yose, kandi ikoreshwa cyane mubushyuhe bwo hejuru no guhanahana ubushyuhe.
P22: Umuyoboro w'icyuma P22 urimo chromium 2,25% na molybdenum 1%, ufite ubushyuhe bwo hejuru hamwe no kurwanya okiside, kandi akenshi bikoreshwa mubushyuhe bwinshi hamwe numuyoboro mwinshi mwinshi mumashanyarazi ninganda za peteroli.
P91: Umuyoboro wa P91 ni chromium ndende hamwe nicyuma kinini cya molybdenum, kirimo chromium 9% na molybdenum 1%, kandi kirimo urugero rwa vanadium na azote. Ifite ubushyuhe bwo hejuru cyane nimbaraga zo gukurura kandi ikoreshwa cyane mumashanyarazi adasanzwe kandi arenze urugero.
ASTM A213Urukurikirane T:

T11: Umuyoboro w'icyuma T11 urimo chromium 1,25% na molybdenum 0.5%, bisa na P11, kandi bikoreshwa cyane cyane mubushyuhe bwo hejuru n'ubushyuhe.
T22: Umuyoboro wa T22 urimo chromium 2,25% na molybdenum 1%, bikwiranye nubushyuhe bwinshi n’ibidukikije by’umuvuduko mwinshi, kandi bikoreshwa cyane mu mashanyarazi n’inganda zikomoka kuri peteroli.
T91: Umuyoboro w'icyuma T91 ni kimwe na P91, urimo chromium 9% na molybdenum 1%, kandi irimo vanadium na azote. Ifite ubushyuhe buhebuje bwo hejuru hamwe no guhangana n’ibikurura kandi ikwiranye n’amashanyarazi arenze urugero kandi arenze urugero.
EN 10216-2:
10CrMo9-10: Uyu ni umuyoboro usanzwe wiburayi urimo ibyuma bya chromium na molybdenum, hamwe nubushyuhe bwiza bwo hejuru hamwe no kurwanya ruswa, bikunze gukoreshwa mumashanyarazi ninganda za peteroli.
Imiyoboro y'icyuma idafite ubudodo itezimbere cyane imikorere yimiyoboro yicyuma wongeyeho ibintu byihariye bivangwa nicyuma, kandi birakwiriye mubikorwa bitandukanye bikabije. Urukurikirane rwa P hamwe na T urwego rwinshi rwa chromium hamwe numuyoboro mwinshi wa molybdenum, nka P91 na T91, byerekana icyerekezo cyiterambere cyubushyuhe bugezweho hamwe nibikoresho byumuvuduko mwinshi kandi bikoreshwa cyane mumashanyarazi adasanzwe kandi arenze urugero. Guhitamo ibyuma bikoreshwa mu byuma bitagira ibyuma ntibishobora gusa kurinda umutekano n’imikorere ihamye yumushinga, ariko kandi bizamura ubuzima bwa serivisi nubushobozi bwibikoresho.