Naɗi da kalmomin aiki
•A Amurka,Karfe I BeamAna yawan ƙayyade s ta amfani da zurfin da nauyin katakon. Misali, katakon "W10x22" yana da zurfin inci 10 (25 cm) (tsawo na katakon I daga fuskar waje na flange ɗaya zuwa fuskar waje na ɗayan flange) kuma yana da nauyin 22 lb/ft (33 kg/m). Ya kamata a lura cewa ɓangaren flange mai faɗi sau da yawa ya bambanta da zurfin da aka ambata. A yanayin jerin W14, suna iya zama zurfin inci 22.84 (58.0 cm).
•A ƙasar Mexico, ana kiran ƙarfe I-beams IR kuma galibi ana ƙayyade su ta amfani da zurfin da nauyin katakon a ma'aunin aunawa. Misali, katakon "IR250x33" yana da zurfin kusan 250 mm (inci 9.8) (tsawo na katakon I daga fuskar waje na flange ɗaya zuwa fuskar waje na ɗayan flange) kuma yana da nauyin kimanin 33 kg/m (22 lb/ft).
Yadda ake aunawa:
Tsawo (A) X Yanar gizo (B) X Faɗin Flange (C)
M = Ƙarfe Junior Beam ko Bantam Beam
S = DaidaitacceKarfe I Beam
W = Hasken Flange Mai Faɗi na Daidaitacce
H-Tari = H-Tari mai tsayi
