1. Taw qhia txog S235J 0 w steel phaj:
S235J {{0 w yog ib qho kev txhim kho huab cua-tiv thaiv hlau. Cov hom hlau no yog siv rau vuam, bolting thiab riveting seem. Cov hom steel no tau txhim kho kom tsis kam mus rau cov atmospheric corrosion thaum siv thaum ambient kub. Qee cov ntaub ntawv tshwj xeeb yog ntxiv kom ua tiav corrosion tsis kam. Alloy ntsiab, xws li: P, Cu, Cr, Ni, thiab lwm yam, thiab lwm yam, thiab tsim oxide txheej ntawm cov hlau nto nyob rau hauv ntau huab cua nyob rau ntau huab cua nyob hauv ntau huab cua. Kev siv cov kev qhia tshwj xeeb: en 10025-5, naj npawb: 1.8958
2. Lub npe ntawm S235J {2}} w steel muaj cov ntu hauv qab no:
1. Cim tsab ntawv S: qauv hlau;
2. Tawm lub zog muaj txiaj ntsig rau cov tuab tsawg dua 16 hli: tsawg kawg cov txiaj ntsig;
3. J {{{0 Yog cov cim zoo tshaj plaws rau lub zog tsis tu ncua;
4. Tsab ntawv w qhia tau tias cov hom steel muaj peev xwm tiv taus atmosphinery corrosion;
5. FN: Cov hlau npau npau yog tsis tso cai;
6. FF: Nkhaus tua cov hlau
3. S235J {0 w specifications, tsos, qhov hnyav thiab tso cai yuam kev:
2.1. Cov kev qhia tshwj xeeb, cov duab thiab tso cai yuam kev ntawm tus hlau phaj yuav tsum tau ua raws li cov kev cai ntawm 2.2 hauv 2004 ntawm en {5}}.
4. S235J 0 w qhov xwm txheej:
3.1. S235J {0 w stir hlau feem ntau yog xa hauv kub dov thiab cov xwm txheej dov li qub nyob rau hauv tib qho kev mob.
3.2. Cov phiaj hlau yuav tsum tau xa los ntawm shearing lossis nplaim txiav.
