Lus Nug: Cov tshuaj muaj pes tsawg leeg ntawm ASTM A106 Gr B seamless steel yeeb nkab yog dab tsi?
Teb: ASTM A106 Gr B muaj cov tshuaj lom neeg hauv qab no (max %): Carbon 0.30%, Manganese 0.29-1.06%, Phosphorus 0.035%, Sulfur 0.035%, thiab Silicon min 0.10%. Nws kuj tseem yuav muaj me me ntawm tooj liab, npib tsib xee, chromium, thiab molybdenum, tab sis cov no muaj tsawg.
Lus Nug: Dab tsi yog cov khoom siv ntawm API 5L Gr B seamless yeeb nkab?
Teb: API 5L Gr B seamless yeeb nkab muaj qhov tsawg kawg nkaus lub zog ntawm 35,000 psi (241 MPa) thiab lub zog tensile yam tsawg kawg nkaus ntawm 60,000 psi (414 MPa). Qhov elongation feem ntau yog 22-25% hauv 2 ntiv tes, nyob ntawm phab ntsa tuab.
Lus Nug: Dab tsi yog qhov siab tshaj plaws ua haujlwm kub rau ASTM A53 Gr B seamless yeeb nkab?
Teb: ASTM A53 Gr B seamless yeeb nkab haum rau qhov kub thiab txias txog 750 ° F (399 ° C) rau cov kev pabcuam uas tsis yog-tseem ceeb, xws li cov kav dej thiab qis- siab zog. Txawm li cas los xij, rau qhov kub siab dua, ASTM A106 yog qhov nyiam.
Nqe Lus Nug: ASTM A106 Gr C txawv ntawm Gr B li cas?
Teb: ASTM A106 Gr C muaj lub zog siab dua piv rau Gr B. Gr C muaj lub zog tensile yam tsawg kawg nkaus ntawm 70,000 psi (485 MPa) thiab qhov tsawg kawg nkaus lub zog ntawm 40,000 psi (276 MPa), thaum Gr B muaj 60,000 psi (414 MPa) 5,200 psi tensile (414 MPa) .
Nqe Lus Nug: Cov ntawv thov twg haum rau API 5L X42 seamless yeeb nkab?
Teb: API 5L X42 seamless yeeb nkab feem ntau yog siv rau hauv cov roj thiab cov kav xa hluav taws xob, cov kav dej refinery, thiab kev siv cov txheej txheem. Nws muaj qhov zoo weldability thiab toughness nrog qhov tsawg kawg nkaus lub zog ntawm 42,000 psi (290 MPa).
