Halabuurka darajada, qalabka farsamada iyo qeexida wax-soo-saarka waxaa lagu maamulaa heerar caalami ah iyo heer qaran oo kala duwan ee birta-la'aanta ah. Iyadoo AII hore ee nidaamka nambarada birta ah ee saddexda nambar ah (tusaale 304 iyo 316) weli sida caadiga ah loo isticmaalo kala soocida darajooyinka birta-la'aanta ah, habab cusub oo kala soocid ayaa la sameeyay.
Nidaamyadaan waxaa ku jira 1-xaraf + 5-lambar UNS ah, sida S30400, sida ay qeexeen SAE iyo ASTM. Wadamada Yurub waxay qaadanayaan halbeegyada caadiga ah ee Euro midaysan. Wadamadani waxay bedelayaan ama la qabsanayaan heerar gaar ah oo wadankooda ah si ay u milicsadaan heerarka caadiga ah ee Euro. Magacyada kale ee la bedelay waxaa ka mid ah BS-da hore iyo nambarada EN sida 304S31 iyo 58E.
Darajooyinka qaarkood kuma jiraan lambarada caadiga ah waxayna noqon karaan darajooyin lahaanshaha ama waxaa lagu magacaabi karaa iyadoo la isticmaalayo heerarka alaabada khaaska ah sida siliga alxanka.
Heerarka birta-la'aanta ah waxaa si faahfaahsan loogu sharraxay Ururka Biritishka Birta-la'aanta ah "Hagaha Tilmaamaha Birta Aan-la'aanta", oo sidoo kale loo yaqaan BSSA "Hagaha Buluugga".
Jadwalka hoose waxa uu taxayaa darajooyin kala duwan oo ahama birta ah, magacyadoodii hore ee BS, nambarka UNS cusub iyo magacaabista EN cusub.
| Darajo | UNS No | BS | Euro caadiga 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 |
| (Zero100) | S32760 | - | 1.4501 |
| (UR52N+) | S32520 | - | 1.4507 |
ASTM ma aqoonsana calaamadaha ku jira biraha. Darajooyin kale oo badan iyo tilmaamo ayaa la heli karaa.
Alaabta ay keentay kooxda Jindalai Steel waxaa loo soo saaray si ay ugu hoggaansamaan tiro heerar ah oo ku xiran badeecada. Heerarka ayaa sidoo kale daboolaya dhammaadka walxaha.
Jindalai Steel Group - soo saaraha caanka ah ee birta aan la taaban karin ee Shiinaha. La kulma in ka badan 20 sano oo horumar ah suuqyada caalamiga ah oo hadda haysta 2 warshadood oo leh awood wax soo saar oo ka badan 400,000 tan sannadkii. Haddii aad rabto inaad hesho macluumaad dheeraad ah oo ku saabsan alaabta birta ah, ku soo dhawoow inaad nala soo xidhiidho maanta ama codso xigasho.
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Waqtiga boostada: Dec-19-2022