Tsarin ma'auni, halayen injina, da ƙayyadaddun kayan aiki ana sarrafa su ne ta hanyar ƙa'idodi na ƙasa da ƙasa na bakin ƙarfe. Duk da cewa tsohon tsarin lambar AISI mai lambobi uku (misali 304 da 316) har yanzu ana amfani da shi sosai don rarraba ma'aunin bakin ƙarfe, an ƙirƙiri sabbin tsarin rarrabuwa.
Waɗannan tsarin sun haɗa da lambar UNS mai harafi 1 + lambobi 5, kamar S30400, kamar yadda SAE da ASTM suka bayyana. Ƙasashen Turai suna ɗaukar ƙa'idodin ƙa'idodin Euro iri ɗaya. Waɗannan ƙasashe ko dai suna maye gurbin ko daidaita ƙa'idodin ƙasashensu don yin daidai da ƙa'idodin ƙa'idodin Euro. Sauran sunayen da ake maye gurbinsu sun haɗa da tsoffin lambobin BS da EN kamar 304S31 da 58E.
Wasu maki ba a rufe su da lambobi na yau da kullun ba kuma ana iya sanya musu suna ta amfani da ƙa'idodi na musamman kamar wayar walda.
An yi cikakken bayani game da ƙa'idodin bakin ƙarfe a cikin Ƙungiyar Bakin Karfe ta Burtaniya "Jagorar Bayani Kan Bakin Karfe", wanda aka fi sani da BSSA "Jagorar Shuɗi".
Teburin da ke ƙasa ya lissafa nau'ikan ma'aunin ƙarfe na bakin ƙarfe, tsohon sunan BS ɗinsu, sabon lambar UNS da sabon sunan EN.
| Matsayi | Lambar UNS | BS | Tsarin Yuro No. |
| 301 | S30100 | 301S21 | 1.4310 |
| 302 | S30200 | 302S25 | 1.4319 |
| 303 | S30300 | 303S31 | 1.4305 |
| 304 | S30400 | 304S31 | 1.4301 |
| 304L | S30403 | 304S11 | 1.4306 |
| 304H | S30409 | - | 1.4948 |
| (302HQ) | S30430 | 394S17 | 1.4567 |
| 305 | S30500 | 305S19 | 1.4303 |
| 309S | S30908 | 309S24 | 1.4833 |
| 310 | S31000 | 310S24 | 1.4840 |
| 310S | S31008 | 310S16 | 1.4845 |
| 314 | S31400 | 314S25 | 1.4841 |
| 316 | S31600 | 316S31 | 1.4401 |
| 316L | S31603 | 316S11 | 1.4404 |
| 316H | S31609 | 316S51 | - |
| 316Ti | S31635 | 320S31 | 1.4571 |
| 321 | S32100 | 321S31 | 1.4541 |
| 347 | S34700 | 347S31 | 1.4550 |
| 403 | S40300 | 403S17 | 1,4000 |
| 405 | S40500 | 405S17 | 1.4002 |
| 409 | S40900 | 409S19 | 1.4512 |
| 410 | S41000 | 410S21 | 1.4006 |
| 416 | S41600 | 416S21 | 1.4005 |
| 420 | S42000 | 420S37 | 1.4021 |
| 430 | S43000 | 430S17 | 1.4016 |
| 440C | S44004 | - | 1.4125 |
| 444 | S44400 | - | 1.4521 |
| 630 | S17400 | - | 1.4542 |
| (904L) | N08904 | 904S13 | 1.4539 |
| (253MA) | S30815 | - | 1.4835 |
| (2205) | S31803 | 318S13 | 1.4462 |
| (3CR12) | S41003 | - | 1.4003 |
| (4565S) | S34565 | - | 1.4565 |
| (Zeron100) | S32760 | - | 1.4501 |
| (UR52N+) | S32520 | - | 1.4507 |
ASTM ba ta gane alamun da ke cikin maƙallan ba. Akwai wasu matakai da ƙayyadaddun bayanai da yawa.
An ƙera kayan da Jindalai Steel Group ta samar don su cika ƙa'idodi da dama dangane da samfurin. Ka'idoji kuma sun shafi ƙarshen kayan.
Jindalai Steel Group - sanannen kamfanin kera bakin karfe a China. Yana da shekaru sama da 20 na ci gaba a kasuwannin duniya kuma a halin yanzu yana da masana'antu guda biyu waɗanda ke da ƙarfin samar da tan 400,000 a kowace shekara. Idan kuna son ƙarin bayani game da kayan bakin karfe, barka da zuwa tuntuɓar mu a yau ko neman ƙiyasin farashi.
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Lokacin Saƙo: Disamba-19-2022
