Qhov sib txawv ntawm JIS G3454 yeeb nkab thiab A252 Welded Yeeb Nkab
Lub ntsiab sib txawv ntawm J3454 yeeb nkab hlau thiab A252 Welded yeeb nkab yog lawv cov qauv thiab cov ntawv thov.
Cov Qauv Txawv:
JIS G3454: Cov qauv no qhia meej txog cov kev xav tau rau cov pa roj carbon steel rau kev siv hauv cov ntawv thov nias uas qhov ntsuas kub tsis tshaj 350 degree. Tus qauv no tsis yog siv rau kev siv hauv cov ntawv thov uas kub siab. Hom yeeb nkab no yog phim rau cov ntawv thov nrog cov ntsuas kub qis thiab muaj cov kab txhais ntau yam (los ntawm 10.5 hli rau 660.4 hli).
A252: tus qauv A252, ntawm qhov tod tes, siv tshwj xeeb rau kev tsim cov khoom siv weldurized thiab tsis-nias cov hlau, xws li txuas hniav, vaj tse thiab cov khoom siv muaj. Cov hlab yog muab faib ua peb hom (F, S thiab H) rau cov qauv vuam sib txawv thiab cov qauv tsim qauv.
Cov Ntawv Thov:
JIS G3454 Yeeb Nkab Steel: Vim nws txoj kev tiv thaiv kom sov thiab kev kub siab, hom kev siv tshuaj steel, thiab lwm yam kev siv tshuaj uas yuav tsum muaj qhov kub thiab txias thiab muaj ib puag ncig siab.
A252 Welded Yeeb: Hom hlau no tsom xam ntau dua ntawm cov qauv hluav taws xob thiab yooj yim ntawm vuam, thiab yog siv dav siv hauv kev tsim kho, cov choj, nkoj thiab lwm thaj chaw.
