400 jerin da 300 bakin karfe jerin biyu na kowa bakin karfe jerin, kuma suna da wasu gagarumin bambance-bambance a cikin abun da ke ciki da kuma yi. Anan akwai wasu mahimman bambance-bambance tsakanin jerin 400 da jerin sandunan bakin karfe 300:
| Halaye | Jerin 300 | Jerin 400 |
| Haɗin Gishiri | Austenitic bakin karfe tare da babban nickel da abun ciki na chromium | Ferritic ko martensiti bakin karfe tare da ƙananan abun ciki na nickel da chromium mafi girma |
| Juriya na Lalata | Kyakkyawan juriya na lalata, dace da mahalli masu lalata | Ƙananan juriya na lalata idan aka kwatanta da jerin 300, wanda ya dace da aikace-aikacen masana'antu na gaba ɗaya |
| Karfi da taurin | Ƙarfi mai ƙarfi, mai dacewa da aikace-aikacen matsananciyar damuwa | Gabaɗaya ƙananan taurin ƙasa idan aka kwatanta da jerin 300, taurin mafi girma a wasu maki |
| Abubuwan Magnetic | Galibi marasa maganadisu | Gabaɗaya maganadisu saboda tsarin martensitic |
| Aikace-aikace | sarrafa abinci, kayan aikin likita, masana'antar sinadarai | Gabaɗaya aikace-aikacen masana'antu, tsarin sharar motoci, kayan abinci |
Lokacin aikawa: Janairu-23-2024