Sabodalow carbon karfeyana da ƙarancin abun ciki na carbon, manganese, abun ciki na silicon shima ƙanana ne, sabili da haka, a cikin yanayi na yau da kullun ba za a yi walda don samar da nama mai tauri mai tsanani ko tsarin da aka kashe ba.Low carbon karfe waldi gidajen abinci plasticity da tasiri mai kyau taurin, waldi, kuma kullum baya bukatar preheating iko Layer zafin jiki da kuma bayan zafi, ba su da post-weld zafi magani don inganta kungiyar da dukan waldi tsari ba dole ba ne ya dauki musamman. matakan a cikin tsari, m weldability.

Koyaya, a wasu lokuta, walda kuma yana da wahala:
(1) Samar da ƙarfe mai jujjuya tsohuwar hanyar narkewa tare da babban abun ciki na nitrogen, abun da ke ciki na ƙazanta, ƙarancin sanyi, haɓaka haɓakar tsufa, rage ingancin welded gidajen abinci, walƙiya ta lalace.
(2) tafasar karfe deoxidation bai cika mafi girma oxygen abun ciki, P najasa kamar m rarraba na gida abun ciki za a wuce, tsufa ji na ƙwarai da sanyi brittleness ji na zafi fatattaka hali karuwa.
(3) Ingancin bai dace da buƙatun na'urorin lantarki ba, don haka carbon a cikin ƙarfe na weld, abun ciki na sulfur ya yi yawa, na iya haifar da fasa.Q235-A karfe acid electrode waldi, kamar masana'anta, saboda da lantarki rufe ferromanganese high carbon abun ciki, zai haifar da weld zafi fatattaka.
(4) Wasu hanyoyin walda za su rage ingancin haɗin gwiwar welded na ƙananan ƙarfe na carbon.Irin su electroslag waldi line makamashi, sa m grained yankin na zafi shafi yankin hatsi dubi sosai kato ya haifar da wani tsanani raguwa a cikin tasiri tauri bayan waldi dole ne a al'ada hatsi tacewa don inganta tasiri taurin.

A takaice, ƙananan karfen carbon yana da mafi kyawun walƙiya kuma mafi sauƙin waldawa, duk hanyoyin walda ana amfani da su akan ƙaramin ƙarfe na ƙarfe.