Q: Dab tsi yog qhov txawv ntawm ASTM thiab ASME cov qauv rau cov kav dej?
A: ASTM(piv txwv li, A106, A312) txhais cov khoom siv tshuaj lom neeg, kev siv tshuab, thiab kev sim ntsuas.ASME(xws li SA106, SA312) txais yuav ASTM specification thiab ntxiv cov kev cai ntxiv rau kev tsim thiab tshuaj xyuas rau kev siv hauv ASME Boiler thiab Pressure Vessel Code (BPVC) daim ntawv thov. Lawv feem ntau technically zoo tib yam.
Q: Dab tsi yog "API" sawv cev rau thiab npe ob lub yeeb nkab tseem ceeb specs.
A:Lub koom haum American Petroleum. Cov ntsiab lus tseem ceeb:API 5Lrau Kab Yeeb (kev thauj mus los), thiabAPI 5 CTrau Casing thiab Tubing (zoo tsim).
Q: Cov European sib npaug ntawm ASTM A106 yog dab tsi?
A: TS EN 10216-2npog seamless raj rau lub hom phiaj siab. P235GH, P265GH yog roughly piv rau A106 Gr. B hais txog kev siv.
Q: "NPS" sawv cev rau dab tsi thiab nws cuam tshuam li cas rau OD tiag?
A: Nominal Pipe Loj.Rau NPS 1/8 "mus rau 12", NPS tus lej yog kwv yees sib npaug ntawm cov yeeb nkab qhov tseeb sab nraud (OD) hauv nti. Rau NPS 14 "thiab siab dua, NPS tus lej sib npaug ntawm qhov tseeb OD hauv ntiv tes.
Q: Lub hom phiaj ntawm "Kev Tshawb Fawb Cov Khoom Siv (MTR) / Mill Test Certificate" yog dab tsi?
A:Nws yog cov ntaub ntawv pov thawj los ntawm cov chaw tsim khoom muab cov tshuaj muaj pes tsawg leeg, cov txiaj ntsig kev ntsuas tshuab (tensile, yield, elongation), cov ntsiab lus kho cua sov, thiab cov txiaj ntsig ntawm tag nrho cov lus teev tseg tsis yog -kev ntsuas kev puas tsuaj rau qhov tshwj xeeb kub / ntau cov yeeb nkab. Nws yog ib qho tseem ceeb rau cov khoom siv traceability thiab kev txheeb xyuas qhov zoo.
