ST52 gami karfe bututu manufacturer ta gaske ingancin tabbacin
Non gami karfe ana daukarsa a matsayin talakawa tsarin karfe, wanda aka yafi halin tensile ƙarfi da yawan amfanin ƙasa batu. Ana amfani da shi wajen gine-ginen jama'a, injiniyan ƙasa, tsarin gada, tsarin ruwa, masana'antar kwantena, kera motoci da na'ura.
Girman ƙarfe gabaɗaya ya ƙunshi harafin st, ƙimar ƙimar ƙarfe da ƙimar inganci. Misali, St52-3. Don ƙimar ƙarfe tare da wasu buƙatun zaɓi don hanyar deoxidation, alamar daidai (U ko R) ana sanya shi a gaban ƙimar ƙarfe.
Misali: ust37-2 ko rst37-2
Small iri st37-2 st37-3u st37-3n maye gurbin 20 karfe
St37 alama ce ta Jamusanci, amma alama ce ta gaba ɗaya da ƙananan samfuran da yawa.
Irin su st37-2, st37-3u, st37-3n, rst-2, ust37-2, da dai sauransu.
St37-2 alama ce ta carbon tsarin karfe a Jamus
Wannan abu yayi daidai da carbon tsarin karfe Q235B (tsohuwar lamba lamba: a3-b) a kasar Sin
Bugu da kari, saboda wannan karfen ya yi kama da karfe 20 na karfe mai inganci na kasar Sin, ana iya maye gurbinsa da karfe 20.
Babban matsi maras sumul bututu da babban matsa lamba tukunyar jirgi bututu ne wani nau'i na tukunyar jirgi bututu, na cikin category na sumul karfe bututu. Hanyar masana'anta iri ɗaya ce da na bututu maras kyau, amma akwai ƙaƙƙarfan buƙatu don ƙimar ƙarfe da ake amfani da shi wajen kera bututun ƙarfe. Ana amfani da bututun tukunyar jirgi mai ƙarfi a ƙarƙashin yanayin zafi mai ƙarfi da yanayin matsa lamba. An fi amfani da bututun tukunyar jirgi mai matsa lamba don kera bututu masu zafi, bututun sake zafi, bututun iska, manyan bututun tururi, da dai sauransu na matsi mai zafi da matsananciyar matsin lamba.
