Horumar la taaban karo,904L birta aan birta lahaynwaxay u soo baxeen inay yihiin walxaha la jecel yahay ee warshadaha heerkulku sarreeyo, iyaga oo isbedelaya habka qaybaha kala duwani ay u maareeyaan jawiga kulaylka ba'an. Iyada oo iska caabbinta kulaylka gaarka ah iyo adkeysiga daxalka, 904L birta aan lahayn ayaa iskeed isu taagtay sidii ikhtiyaarka ikhtiyaarka ah ee codsiyada muhiimka ah halkaasoo heerkul sare uu caqabad ku yahay.
Rafcaanka 904L birta aan la taaban karin waxay ku jirtaa qaabkeeda gaarka ah iyo sifooyinka. Daawahaani waxa ay ku faantaa koomiyad sareeysa oo ah 23-28%, oo ay weheliso kaarboon yar iyo maaddo nikkel sare ah (19-23%). Tilmaamahani waxay gacan ka geystaan awoodda cajiibka ah ee lagu ilaalinayo sharafta qaabdhismeedka iyo iska caabinta oksaydhka xitaa xaaladaha sida caadiga ah u keeni kara hoos u dhac weyn oo ku yimaada alaabta kale.
Birta aan Lahayn 904L BarDerajooyin u dhigma
| HEERKA | SHAQADA NR. | UNS | JIS | BS | KS | AFNOR | EN |
| SS 904L | 1.4539 | N08904 | SUS 904L | 904S13 | STS 317J5L | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
Halabuurka Kiimikada
| Darajo | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
| SS 904L | 0.020 max | 2.00 max | 1.00 max | 0.040 max | 0.030 max | 19.00 - 23.00 | 4.00 - 5.00 max | 23.00 - 28.00 | 1.00 - 2.00 |
Guryaha makaanikada
| Cufnaanta | Meesha dhalaalaysa | Xoogga Jilicsan | Xoogga Wax-soo-saarka (0.2% ka-baxsan) | Dheeraynta |
| 7.95 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35% |
Waqtiga boostada: Agoosto-07-2023