CovASTM A992 Cov Lus Qhia Tshwj Xeeb/A992M -11 (2015) specification txhais tau hais tias dov steel seem rau siv nyob rau hauv lub tsev tsim, choj qauv, thiab lwm yam lug siv. Tus qauv qhia qhov sib piv siv los txiav txim siab txog cov tshuaj lom neeg uas xav tau rau kev tsom xam thermal xws li: carbon, manganese, phosphorus, sulfur, vanadium, titanium, npib tsib xee, chromium, molybdenum, niobium, thiab tooj liab. Tus qauv kuj tseem qhia txog cov khoom siv compressive uas yuav tsum tau siv rau kev ntsuas tensile xws li lub zog tawm los, lub zog tensile, thiab elongation.
ASTM A992 Cov Lus Qhia Tshwj Xeeb(Fy = 50 ksi, Fu = 65 ksi) yog qhov kev xav tau tshwj xeeb rau qhov dav flange seem thiab tam sim no hloovASTM A36thiabA572Qib 50. ASTM A992/A992M -11 (2015) muaj ntau qhov zoo sib xws: nws qhia txog cov khoom siv ductility, uas yog qhov siab tshaj plaws tensile rau yield ratio ntawm 0.85; Tsis tas li ntawd, ntawm qhov sib npaug ntawm cov pa roj carbon ntau txog 0.5 feem pua, nws qhia tau tias cov khoom siv ductility yog 0.85 feem pua. , txhim kho lub weldability ntawm cov hlau ntawm carbon sib npaug qhov tseem ceeb mus txog 0.45 (0.47 rau tsib profiles nyob rau hauv pab pawg 4); thiab ASTM A992 / A992M -11 (2015) siv rau txhua hom kub dov steel profiles.
Qhov sib txawv ntawm ASTM A572 Qib 50 khoom thiab ASTM A992 Qib khoom
ASTM A572 Qib 50 cov khoom siv zoo ib yam li ASTM A992 cov khoom tab sis muaj qhov sib txawv. Feem ntau cov flange dav siv niaj hnub no yog qib ASTM A992. Thaum ASTM A992 thiab ASTM A572 Qib 50 feem ntau zoo ib yam, ASTM A992 yog qhov zoo tshaj plaws ntawm cov tshuaj muaj pes tsawg leeg thiab kev tswj cov cuab yeej cuab tam.
ASTM A992 muaj qhov tsawg kawg nkaus lub zog muaj zog tus nqi thiab qhov tsawg kawg nkaus tensile lub zog tus nqi, nrog rau qhov siab tshaj plaws yield zog rau tensile zog piv thiab qhov siab tshaj carbon sib npaug tus nqi. Qib ASTM A992 tsis tshua kim dua li ASTM A572 Qib 50 (thiab ASTM A36 qib) rau qhov dav flange.
Post lub sij hawm: Jun-18-2024
