1. Cov ntaub ntawv tseem ceeb ntawm S235JR steel yeeb nkab
Lub npe: S235JR
Hom: European standard non{0}} alloy structural steel yeeb nkab
Kev siv tus qauv: Ua raws li European tus qauv EN10219
Sib npaug lub teb chaws tus qauv: Sib npaug rau lub teb chaws tus qauv Q235B
2. Tshuaj muaj pes tsawg leeg ntawm S235JR:
S235JR C%: 0.17-0.19
S235JR Mn%: 0.14-0.15
S235JR P%: 0.035-0.045
S235JR S%: 0.035-0.045
S235JR N%: 0.012-0.14
S235JR Cu%: 0.40-0.45
3. Kev sib piv ntawm cov qauv thoob ntiaj teb loj
Tebchaws Asmeskas (ASTM tus qauv).
ASTM A36 : Cov khoom siv hluav taws xob zoo sib xws (yield zog Ntau dua lossis sib npaug ntawm 250MPa, tensile zog 400-550MPa), tab sis cov ntsiab lus carbon (tsawg dua lossis sib npaug li 0.26%) thiab kev tswj tsis huv yog qhov sib txawv me ntsis, haum rau thaj chaw ntawm lub tsev.
ASTM A53 Gr.B: Siv rau cov kav dej xa dej, cov khoom muaj zog ntau dua lossis sib npaug li 240MPa, tuaj yeem hloov pauv qhov qis - cov xwm txheej ntawm cov kav dej.
United Kingdom (BS standard).
BS 4360 43A: Lub zog tawm los Ntau dua lossis sib npaug ntawm 235MPa, tshuaj lom neeg muaj pes tsawg leeg (C Tsawg dua lossis sib npaug rau 0.20%, Mn Tsawg dua lossis sib npaug rau 1.60%) yog qhov zoo sib xws nrog S235JR.
Lub teb chaws Yelemees (DIN txuj).
DIN EN 10025-2 S235JR: Tib lub npe raws li European tus qauv, ncaj qha sib npaug.
DIN 17100 St37-2: Qib qub, tam sim no hloov los ntawm EN 10025-2, nrog rau kev ua tau zoo ib yam li S235JR.
Nyiv (JIS standard).
JIS G3101 SS400 : Lub zog tawm los Ntau dua lossis sib npaug li 245MPa, tab sis qhov txwv siab tshaj ntawm cov ntsiab lus manganese (Less tshaj lossis sib npaug rau 0.90%) yog qis dua S235JR, thiab kev ua haujlwm vuam yuav tsum tau kuaj xyuas.
