ASTM A992 ke eng?

TheASTM A992/ A992M -11 (2015) tlhaloso e hlalosa likarolo tsa tšepe tse kolobisitsoeng bakeng sa ho sebelisoa meahong ea mohaho, mehaho ea borokho, le mehaho e meng e sebelisoang hangata. Tekanyetso e hlalosa likarolelano tse sebelisoang ho fumana sebopeho sa lik'hemik'hale tse hlokahalang bakeng sa likarolo tsa tlhahlobo ea mocheso o kang: carbon, manganese, phosphorus, sulphur, vanadium, titanium, nickel, chromium, molybdenum, niobium, le koporo. Tekanyetso e boetse e hlakisa thepa e hatellang e hlokahalang bakeng sa lits'ebetso tsa liteko tse thata joalo ka matla a tlhahiso, matla a thata le bolelele.

ASTM A992(Fy = 50 ksi, Fu = 65 ksi) ke tlhaloso e ratoang ea profil bakeng sa likarolo tse pharaletseng tsa flange 'me joale e nkela sebaka.ASTM A36leA572Sehlopha sa 50. ASTM A992 / A992M -11 (2015) e na le melemo e 'maloa e fapaneng: e hlalosa ductility ea thepa, e leng tekanyo e phahameng ea ho hlahisa lihlahisoa tsa 0,85; Ho phaella moo, ka boleng ba k'habone ho fihlela ho karolo ea 0,5 lekholong, e bolela hore ductility ea thepa ke karolo ea 0,85 lekholong. , e ntlafatsa ho cheseha ha tšepe ka litekanyetso tse lekanang tsa carbon ho fihlela ho 0.45 (0.47 bakeng sa litlaleho tse hlano tsa Sehlopha sa 4); le ASTM A992 / A992M -11 (2015) e sebetsa ho mefuta eohle ea litšepe tse chesang tse chesang.

Phapang lipakeng tsa thepa ea ASTM A572 Grade 50 le ASTM A992 Grade material
Lisebelisoa tsa ASTM A572 Grade 50 li tšoana le thepa ea ASTM A992 empa ho na le liphapang. Likarolo tse ngata tse pharaletseng tse sebelisoang kajeno ke sehlopha sa ASTM A992. Leha ASTM A992 le ASTM A572 Kereiti ea 50 ka kakaretso li tšoana, ASTM A992 e phahame ho latela sebopeho sa lik'hemik'hale le taolo ea thepa ea mochini.

ASTM A992 e na le boleng bo tlase ba tlhahiso ea matla le boleng bo tlase ba matla a ho tiea, hammoho le matla a phahameng a tlhahiso ho tekanyo ea matla a tensile le boleng bo boholo bo lekanang le khabone. Sehlopha sa ASTM A992 se theko e tlase ho se reka ho feta ASTM A572 Grade 50 (le ASTM A36 grade) bakeng sa likarolo tse pharaletseng tsa flange.