Q345ke mofuta oa tšepe e nang le motsoako o tlase e sebelisoang haholo marokhong, likoloing, likepeng, mehahong, likepeng tsa khatello, lisebelisoa tse khethehileng, jj., moo "Q" e bolelang matla a tlhahiso, 'me 345 e bolela hore matla a tlhahiso ea tšepe ena ke 345MPa.
Teko ea tšepe ea q345 e kenyelletsa haholo-holo lintlha tse peli: ea pele, hore na karolo ea tšepe e fihla maemong a naha; ea bobeli, hore na matla a tlhahiso, teko ea ho thaepa, jj. ea tšepe e fihlela maemo ka litsi tsa litsebi. E na le karolo e fapaneng ea alloy le q235, e leng tšepe e tloaelehileng ea carbon 'me q345 ke tšepe e tlaase ea alloy.
Tlhophiso ea thepa ea Q345
Q345 e ka aroloa ka Q345A, Q345B, Q345C, Q345D le Q345E ho latela sehlopha. Seo ba se emelang haholo-holo ke hore mocheso oa tšusumetso o fapane. Boemo ba Q345A, ha ho na tšusumetso; Boemo ba Q345B, tšusumetso e tloaelehileng ea mocheso oa likhato tse 20; Boemo ba Q345C, tšusumetso ea likhato tse 0; Boemo ba Q345D, tšusumetso ea likhato tse -20; Boemo ba Q345E, tšusumetso ea likhato tse -40. Maemong a fapaneng a tšusumetso, boleng ba tšusumetso le bona bo fapane.
e fapaneng.
Tšebeliso ea thepa ea Q345
Q345 e na le thepa e ntle e akaretsang ea mechini, ts'ebetso e amohelehang ea mocheso o tlase, polasetiki e ntle le ho tjheseletsa. E sebelisoa e le likepe tsa khatello e mahareng le e tlase, litanka tsa oli, likoloi, likereine, mechini ea merafo, liteishene tsa motlakase, marokho le meaho e meng, likarolo tsa mechini, meaho le meaho e akaretsang e jarang meroalo e matla. Likarolo tsa meaho ea tšepe, tse sebelisoang maemong a chesang kapa a tloaelehileng, li ka sebelisoa bakeng sa meaho e fapaneng libakeng tse batang tse ka tlase ho -40°C.