Core Mechanical Properties (JIS G 3125 Standard)
Cov cuab yeej cuab tam ntxiv
● Impact Toughness: Tsis tas yuav tsum muaj JIS G 3125 yam tsawg kawg nkaus, tab sis tus nqi raug rau AR/TMCP SPA-H yogNtau dua lossis sib npaug li 27 Jnyob rau hauv chav tsev kub (20 degree); qhia Charpy V - ntsuas ntsuas yog tias xav tau rau qis - daim ntawv thov kub.
● Bending Performance:
t Tsawg dua los yog sib npaug li 6 hli: Yam tsawg kawg bending vojvoog=0.5 × t (tsis muaj kab nrib pleb).
t >6 mm: Yam tsawg kawg nkaus khoov vojvoog=1.5 × t (tsis muaj kab nrib pleb).
● Hardness: Brinell hardness (HBW) feem ntau yog 130–180 HBW rau AR/TMCP daim hlau, raws li ferrite - pearlite microstructure.
●Cold - Rolled SPA - H (Thin Strips, Tsawg dua lossis sib npaug li 3 hli): Nyob rau hauv ib txwm txias - dov (CR) lub xeev, yield zog yog 20–30% siab dua kub - dov (≈420–450 MPa), tensile lub zog yog ≈520–550 MPa, thiab elongation yog 18–20% (qis dua li 10 rolled txias).
Ntsiab Lus
Cov no yog tus qauv yam tsawg kawg nkaus; Cov ntawv ceeb toom tiag tiag ntawm cov ntawv xeem (MTRs) yuav qhia tau tias muaj txiaj ntsig ntau dua.
TMCP daim hlau muaj cov nplej me ntsis zoo dua li - cov dov, uas tuaj yeem txhim kho cov tawv nqaij tsis muaj zog.
Rau nyias strips (<3 mm), a tensile strength of ≥510 MPa is acceptable by mutual agreement between the buyer and supplier.
