Siffar Q235 da Q345 gabaɗaya ba a gani.Bambancin launi ba shi da alaƙa da kayan ƙarfe, amma bambancin hanyar sanyaya bayan an fitar da karfe.Yanayin al'ada, yanayin sanyin yanayi ja ne.Idan ana amfani da hanyar quench, farfajiyar ta samar da wani Layer oxide mai yawa, wanda zai bayyana baƙar fata.

Tsarin ƙarfi na gabaɗaya tare da Q345, saboda Q345 ya fi ƙarfin ƙarfin ƙarfe Q235, lardin ƙarfe, fiye da lardin 235 15% - 20%.Yana da kyau a yi amfani da Q235 lokacin zayyana don kula da kwanciyar hankali.Akwai bambanci daga 3% zuwa 8% a farashin.

Dangane da ganewa, akwai ra'ayoyi da yawa:

A:1.A cikin masana'anta, ana iya amfani da walda na gwaji don bambanta kayan biyu.Misali, yi amfani da na'urorin lantarki na E43 wajen walda karamin karfe mai zagaye akan kowanne daga cikin farantin karfen guda biyu, sannan a yi amfani da karfi da karfi don rarrabe kayan farantin karfe biyu daidai da yanayin lokacin gazawar.

2. A cikin ma'aikata, za a iya amfani da dabaran niƙa don bambanta abubuwa biyu.Lokacin da aka goge karfen Q235 tare da dabaran niƙa, tartsatsin wuta da ke tashi suna zagaye barbashi ne masu launin duhu.Q345's walƙiya yana bifurcated kuma mai haske.

3, akwai kuma bisa ga bambancin launi na farfajiyar juzu'i na nau'ikan karfe guda biyu ana iya bambanta tsakanin nau'ikan karfe biyu.Gabaɗaya, tashar yanke tashar Q345 fari ce a launi.

B:1.Dangane da launi na farantin karfe, ana iya bambanta kayan Q235 da Q345: kalar Q235 shuɗi ne, kuma launin Q345 wani ɗan ja ne (wannan don ƙarfe ne kawai ke shigowa cikin filin, kuma yana iya. ba za a bambanta ba bayan dogon lokaci).

2, wanda ya fi iya bambance kayan gwajin shine nazarin sinadarai, Q235 da Q345 abun ciki na carbon ba iri ɗaya bane, a lokaci guda abun cikin sinadarai ba iri ɗaya bane.(Wannan ita ce tabbataccen hanya don yin shi.)

3, Q235 da Q345 bambanci abu, tare da yanayin walda: biyu da ba a sani ba abu na karfe farantin butt, tare da talakawa waldi sanda zuwa weld, idan fashe gefen karfe farantin an tabbatar da Q345 abu.(Wannan ƙwarewa ce mai amfani)