Alloy maras sumul karfe bututu ne irin sumul karfe bututu.Ayyukansa sun fi na talakawan bututun ƙarfe maras sumul saboda wannan bututun ƙarfe ya ƙunshi ƙarin Cr.Babban juriyarsa, ƙarancin zafin jiki da juriya na lalata sun fi sauran bututun ƙarfe mara kyau.Ba za a iya misaltuwa ba, don haka ana amfani da bututun gami da yawa a cikin man fetur, sinadarai, wutar lantarki, tukunyar jirgi da sauran masana'antu.

Tsarin bututun ƙarfe maras kyau: galibi ana amfani dashi don tsarin gabaɗaya da tsarin injiniyoyi.Abubuwan wakilcinsa (maki): carbon karfe No. 20, No. 45 karfe;Alloy karfe Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, da dai sauransu.

Bututun ƙarfe marasa ƙarfi don jigilar ruwa: galibi ana amfani da su don jigilar bututun ruwa a aikin injiniya da manyan kayan aiki.Abubuwan wakilci (maki) sune 20, Q345, da sauransu.

Bututun ƙarfe maras nauyi don ƙananan matsi da matsakaitan matsa lamba: galibi ana amfani da su don bututun jigilar ruwa mai ƙarancin ƙarfi da matsakaici a cikin tukunyar jirgi na masana'antu da na gida.Abubuwan wakilci sune No. 10 da No. 20 karfe.

Bututun ƙarfe maras ƙarfi don tukunyar jirgi mai ƙarfi: galibi ana amfani da su don matsanancin zafin jiki da matsatsi mai jurewa ruwa kai masu kai da bututu a tashar wutar lantarki da tukunyar makamashin nukiliya.Abubuwan wakilci sune 20G, 12Cr1MoVG, 15CrMoG, da sauransu.

Carbon karfe da carbon-manganese karfe bututun karfe maras sumul don jiragen ruwa: galibi ana amfani da su don bututu masu juriya na sa I da na II don tukunyar jirgi da superheaters.Abubuwan wakilci sune 360, 410, 460 karfe maki, da dai sauransu.

Bututun ƙarfe maras ƙarfi don kayan aikin taki mai ƙarfi: galibi ana amfani da su don isar da bututun zafi mai zafi da matsanancin matsin lamba akan kayan aikin taki.Abubuwan wakilci sune 20, 16Mn, 12CrMo, 12Cr2Mo, da sauransu.

Bututun ƙarfe maras ƙarfi don fashewar mai: galibi ana amfani da su a cikin tukunyar jirgi, masu musayar zafi da bututun jigilar ruwa a cikin tsire-tsire masu narkewar mai.Abubuwan wakilcinsa sune 20, 12CrMo, 1Cr5Mo, 1Cr19Ni11Nb, da sauransu.

Bututun ƙarfe mara ƙarfi don silinda gas: galibi ana amfani dashi don yin iskar gas daban-daban da silinda na ruwa.Abubuwan wakilcinsa sune 37Mn, 34Mn2V, 35CrMo, da sauransu.

Hot-birgima sumul karfe bututu don na'ura mai aiki da karfin ruwa props: yafi amfani da su yi na'ura mai aiki da karfin ruwa goyon bayan, cylinders da ginshikan a cikin ma'adanin kwal, kazalika da sauran na'ura mai aiki da karfin ruwa cylinders da ginshikan.Abubuwan wakilcinsa sune 20, 45, 27SiMn, da sauransu.

Bututun ƙarfe mara ƙarfi mai ƙarfi don injin dizal: galibi ana amfani da bututun mai mai ƙarfi a cikin tsarin alluran injin dizal.Bututun ƙarfe galibi bututu ne mai sanyi, kuma kayan wakilcinsa shine 20A.

Cold-ja ko sanyi-birgima daidaici sumul karfe bututu: Yafi amfani da inji Tsarin da carbon latsa kayan aiki, bukatar high girma daidaito da kuma mai kyau surface gama.Abubuwan wakilcinsa sun haɗa da 20, 45 karfe, da dai sauransu.

Material na gami bututu

12Cr1MoV, P22(10CrMo910) T91,P91, P9, T9, WB36, Cr5Mo (P5, STFA25, T5,)15CrMo(P11, P12, STFA22), 13CrMo44, Cr5Mo, 15CrMo, 25CrMo, 30CrMo, 40CrMo.

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