Ubwoko bwa 409 Icyuma kitagira umuyonga nicyuma cya Ferritic, kizwi cyane kubera imiterere ya okiside nziza hamwe na positifike yo kurwanya ruswa, hamwe nibiranga ibintu byiza byo guhimba, byemerera gukora no gukata byoroshye. Mubisanzwe ifite kimwe mubiciro biri hasi-amanota yubwoko bwose bwibyuma. Ifite imbaraga zingirakamaro kandi isudira byoroshye gusudira arc kimwe no guhuza ahantu hamwe no gusudira. Ni ngombwa kumenya ko gusudira Ubwoko 409 bitabangamira kurwanya ruswa.
Kubera ibiranga ibyiza byayo, urashobora kubona Ubwoko 409 Ibyuma bitagira umuyonga mukoresha mubikorwa bitandukanye byinganda nibisabwa harimo:
- Sisitemu yo gutwara ibinyabiziga hamwe namakamyo (harimo na manifold na muffler)
- Imashini zubuhinzi (abakwirakwiza)
- Ubushyuhe
- Akayunguruzo
Ubwoko 409 ibyuma bidafite ingese bifite imiti idasanzwe irimo:
- C 10.5-11.75%
- Fe 0.08%
- Ni 0.5%
- Mn 1%
- Si 1%
- P 0.045%
- S 0.03%
- Ti 0,75% max
Igihe cyo kohereza: Jun-18-2020