Ngakhale kuti ma profiles onsewa ali ndi mawonekedwe ozungulira, miyezo yawo yopangira ndi mapangidwe awo ndi osiyana kwambiri:
Miyezo ndi Magiredi a Zinthu Zofunika:EN H-Beams imatsatira kwambiri miyezo ya ku Europe (monga EN 10025), yokhala ndi magiredi ofanana azinthu kuphatikizaS355JRndi S355J2. Kumbali inayi, ASTM W-Beams imatsatira miyezo ya American Society for Testing and Materials (monga ASTM A6/A6M), yomwe nthawi zambiri imagwiritsa ntchito chitsulo champhamvu kwambiri chopanda aloyi.ASTM A992(kapenaA572 Gr.50), zomwe zimapereka mphamvu yabwino kwambiri yokolola komanso kuthekera kowongoleredwa.
Gawo la Jiyomethri:Miyendo ya H-ya ku Europe (mongaHEA, HEBndiHEM) ali ndi chiŵerengero chokhazikika cha makulidwe a flange ndi kutalika kwa ukonde, chodziwika ndi ma flange otakata, ozungulira. Mosiyana ndi zimenezi, banja la ASTM W-beam specifications ndi losiyana kwambiri; mayina awo (monga,W14x90) zimagwirizana mwachindunji ndi kuya ndi kulemera kwa phazi lililonse, zomwe zimapangitsa kuti zikhale zogwirizana bwino pogwira ntchito ndi mapulani ovuta aku America.