Karfe mai amfani da wutar lantarki mai amfani da hatsi yawanci yana da matakin silicon na 3% (Si:11Fe). Ana sarrafa shi ta yadda ake haɓaka mafi kyawun halaye a cikin hanyar birgima, saboda madaidaicin iko (wanda Norman P. Goss ya gabatar) na yanayin lu'ulu'u dangane da takardar. Yawan kwararar maganadisu yana ƙaruwa da kashi 30% a cikin hanyar birgima ta coil, kodayake cikar maganadisunsa ya ragu da kashi 5%. Ana amfani da shi don tsakiya na wutar lantarki da na'urorin rarrabawa, ƙarfe mai amfani da hatsi mai amfani da sanyi sau da yawa ana taƙaita shi zuwa CRGO.
Matsakaicin girman samfurin
| Kauri mara iyaka (mm) | Faɗin da ba shi da iyaka (mm) | Diamita na Ciki (mm) |
| 0.23, 0.27, 0.30, 0.35 | 650-1200 | 508 |
Bambancin Faɗi, Kauri da Tsawon
| Faɗin da ba a saba ba | Kauri mara iyaka | Bambancin kauri | Bambancin kauri mai juyewa | Bambancin faɗi | Juriya mai faɗi | Rauni % |
| ≤650 800-1000 ≤1200 | 0.23, 0.27, 0.30, 0.35 | 0.23:±0.020 0.25:±0.025 0.30:±0.025 Sauran kauri ±0.030 |
≤0.020 ≤0.025 |
≤0.015 |
0–1 |
≤1.5 |
Bayanin Samfura, Nauyin Isarwa da Matsayin Gudanarwa
| Bayanin Samfuri | Nauyin Isarwa | Matsayin Zartarwa |
| Kauri 0.23/0.27/0.39 * Nauyin | Isarwa daga samfuran da aka yi amfani da su a kan na'urar na'urar na'urar ≤ tan 2-3 | GB/T 2521.2-2016 |