ASTM A106 Seamless Carbon Steel Yeeb Nkab Rau Siab -Kev Pabcuam Kub

seamless carbon steel yeeb nkab rau siab -kev pab kub hauv NPS 1 ⁄ 8 rau NPS 48 [DN 6 txog DN 1200] (Ceeb Toom 2) suav nrog, nrog nominal (nruab nrab) phab ntsa thickness. Nws yuav tsum tau tso cai rau muab cov yeeb nkab uas muaj lwm qhov ntev muab cov yeeb nkab ua raws li tag nrho lwm cov kev cai ntawm qhov kev qhia no. Cov yeeb nkab xaj raws li qhov tshwj xeeb no yuav tsum tsim nyog rau kev khoov, flanging, thiab kev ua haujlwm zoo sib xws, thiab rau vuam. Thaum cov hlau yuav tsum tau welded, nws yog presupposed hais tias ib tug welding txheej txheem haum rau qib ntawm steel thiab npaj siv los yog kev pab cuam yuav siv.

Cov hlau yuav raug tua hlau, nrog rau cov txheej txheem melting tseem ceeb yog qhib -hearth, yooj yim- pa oxygen, lossis hluav taws xob- cub tawg, tejzaum nws ua ke nrog cais degassing lossis refining. Yog hais tias theem nrab melting, siv electroslag remelting los yog nqus tsev vacuum- arc remelting yog tom qab ua hauj lwm, lub tshav kub yuav tsum tau txhais raws li tag nrho cov ingots remelted los ntawm ib tug thawj cua sov. Rau cov yeeb nkab NPS 1 1 ⁄ 2 [DN 40] thiab hauv qab, nws yuav tsum tau tso cai rau cov khoom kub tiav lossis txias kos. Tshwj tsis yog tias tau teev tseg, yeeb nkab NPS 2 [DN 50] thiab tshaj yuav tsum tau muab cov khoom kub tiav. Thaum pom zoo los ntawm cov chaw tsim khoom thiab cov neeg yuav khoom, nws tso cai
los ua kom txias -kho yeeb nkab.

Qib A Qib B Qib C
Cov pa roj carbon, max 0.25 0.30 0.35
Manganese 0.27-0.93 0.29-1.06 0.29-1.06
Phosphorus, max 0.035 0.035 0.035
Sulfur, max 0.035 0.035 0.035
Silicon, min 0.10 0.10 0.10
Chrome, max 0.40 0.40 0.40
tooj liab, max 0.40 0.40 0.40
Molybdenum, max 0.15 0.15 0.15
Nickel, max 0.40 0.40 0.40
Vanadium, max 0.08 0.08 0.08

Cov chaw tsim khoom ntawm cov yeeb nkab yuav tsum tshawb xyuas ntau qhov txaus ntawm qhov pom qhov tsis zoo los muab kev lees paub tsim nyog tias lawv tau raug soj ntsuam zoo nrog rau qhov tob. Deg imperfections uas nkag mus ntau tshaj 12 1 ⁄ 2% ntawm nominal phab ntsa thickness los yog encroach nyob rau hauv qhov tsawg kawg nkaus phab ntsa thickness yuav tsum suav hais tias tsis xws luag. Mechanical marks and abrasions-xws li cable marks, dinges, guide marks, roll marks, ball scratches, scores, and die marks-thiab pits, ib yam ntawm cov imperfections yog
tob tshaj 1 ⁄ 16 in. [1.6 mm].

Lub txiv mis yuav tsum tau txiav los ntawm cov yeeb nkab ntawm tib qhov ntev thiab zoo tau piav qhia hauv qhov kev qhia tshwj xeeb no.

Transverse Tension Test
Flattening Tests
Hydrostatic Test
Nondestructive Electric Test
Flattening Test
Hlau Structure thiab Etching Test
Kev huv huv sab hauv

Thaum thov cov ntaub ntawv xeem, ntxiv rau qhov yuav tsum tau muaj ntawm Specification A 530 / A 530M, tus tsim khoom lossis tus neeg muag khoom yuav tsum muab rau tus neeg yuav daim ntawv qhia tshuaj ntsuam xyuas rau cov ntsiab lus teev tseg.

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