Konpozisyon tipik nan S355 (klas otomobil)?
C mwens pase oswa egal a 0.22%, Si mwens pase oswa egal a 0.55%, Mn mwens pase oswa egal a 1.60%, P mwens pase oswa egal a 0.025%, S mwens pase oswa egal a 0.015%.
Pwopriyete mekanik (endikatè kle otomobil)?
Fòs sede: 355MPa (mwens pase oswa egal a 16mm)
Fòs rupture: 470-630MPa
Elongasyon: Pi gran pase oswa egal a 21% (JR); Pi gran pase oswa egal a 25% (MC)
Enpak: JR (pi gran pase oswa egal a 27J nan 20 degre), J2 (pi gran pase oswa egal a 27J nan -20 degre), MC (ekselan pou fòme frèt)
Dite (HB)?
140–190HB, fasil pou koupe / fè egzèsis / koupon pou achte.
Pèfòmans fatig (nwayo aspè otomobil)?
Gwo -fatig sik ≈180-220MPa, apeprè 40% pi bon pase Q235, apwopriye pou chasi / sispansyon altène chaj.
Weldability (key automotive aspect)? Carbon equivalent ≤0.40%, no preheating required for conventional welding; for thick plates (>20mm), prechofaj nan 100-150 degre nesesè pou anpeche fann.