I-ASTM A193 Ibanga le-B7 iyincazelo ejwayelekile yezinto ezibonakalayo ze-chromium-molybdenum alloy i-fasteners yamandla aphezulu, izinga lokushisa eliphakeme, nezinhlelo zokusebenza ezikhethekile. Ibanga le-B7 liwukushisa kwe-chromium molybdenum alloy insimbi enesidingo esincane esincane se-100 ksi, amandla esivuno esingu-75 ksi kanye nobulukhuni obuphezulu be-35 HRC. I-ASTM A193 Ukucaciswa okuhlanganisa izidingo zokwakheka kwamakhemikhali, izakhiwo zemishini, ubunzima, ukwelashwa kokushisa, kanye nama-washers anconyiwe ama-fasteners we-class b7. I-ASTM A193 Ibanga le-B7 ingukucaciswa okubanzi kakhulu kwama-fasteners, okuvame ukutholakala kuma-bolts noma amapayipi, imikhumbi yengcindezi, ama-valves, amavutha kanye kanye nokufakwa.