shubista maalgashiga birta kaarboonyihiin kuwatuurista caadadawaxaa soo saaray dhuuq lumayhabka shubista maalgashiga(ama loo yaqaan shubista saxda ah) ee birta kaarboon. Birta kaarboonka ee la shubay waa nooca birta la shubay ee leh kaarboon oo ah curiyaha alloying-ka ugu weyn iyo qadar yar oo ah walxo kale oo daawaha ah. Waxaa loo qaybin karaa birta kaarboonka yar ee la tuuray, birta kaarboonka ah ee dhexdhexaadka ah iyo tuurista birta kaarboonka sare. Maaddada kaarboonka ee birta kaarboonka yar ee la shubay waa in ka yar 0.25%, kaarboonka birta dhexdhexaadka ah waxay u dhaxaysaa 0.25% iyo 0.60% Xoogga iyo adkaanta birta kaarboonka ee shubka ah ayaa kordheysa iyadoo la kordhinayo kaarboonka. Birta kaarboonka ee la shubay waxay leedahay faa'iidooyin kala duwan sida qiimaha wax soo saarka oo hooseeya, xoog sare, adkeysi fiican iyo caag sare. Jilaashubista birta kaarboonwaxaa loo isticmaali karaa in lagu soo saaro qaybo xambaara culaysyo culus, sidaqaybaha spare cagaf, Baabuurta xamuulka qaada ee tareenada, baabuurta, biraha duubista, saldhigyada saxaafadda haydarooliga ee mashiinada culus. Waxa kale oo loo isticmaali karaa in lagu soo saaro qaybo ay ku hoos jiraan xoogag waaweyn iyo saamayn, sida taayirrada, lamaanayaasha, xayndaabyada iyo dhinacyada baabuurta tareenka.
Qayb ka mid ah Darajooyinka Birta Kaarboon Cast ee Maalgelinta Maalgelinta | |||||||||||
Maya | Shiinaha | Japan | USA | ISO | Jarmalka | Faransiiska | Russia гост | Sweden SS | Britain | ||
GB | JIS | ASTM | UNS | DIN | W-Nr. | NF | BS | ||||
1 | ZG200-400 (ZG15) | SC410 (SC42) | 415-205 (60-30) | J03000 | 200-400 | GS-38 | 1.0416 | - | 15l | 1306 | - |
2 | ZG230-450 (ZG25) | SC450 (SC46) | 450-240 965-35) | J03101 | 230-450 | GS-45 | 1.0446 | GE230 | 25l | 1305 | A1 |
3 | ZG270-500 (ZG35) | SC480 (SC49) | 485-275 (70-40) | J02501 | 270-480 | GS-52 | 1.0552 | GE280 | 35l | 1505 | A2 |
4 | ZG310-570 (ZG45) | SCC5 | (80-40) | J05002 | - | GS-60 | 1.0558 | GE320 | 45l | 1606 | - |
5 | ZG340-640 (ZG55) | - | - | J05000 | 340-550 | - | - | GE370 | - | - | A5 |