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  • 1.  Steel Quality S550MC

    Posted 07-28-2021 05:44
    Dear all,
    We buy S550MC material to our cold stamping process, to obtain steel flat sheets with min Rm required of 25KN. Normally we buy material with 600 Rm min and it is enough to obtain our parts with the mechanical properties required. Nevertherless, we now have problems with a new supplier and we do not see where is the problem. I attach the chemical composition for your analysis. Is the different Si content detrimental? It is under the quality limit but higher than the material we normally use. Wich could be  the Si role here?
    Thanks a lot for your time.


    Cert Re Rm A% C Mn P S Si Al Ni Nb V Cr Cu N Ti Pb Mo Sn B Ceq CET CEV
    46260 556 627 25 0,061 0,790 0,007 0,003 0,010 0,040 0,040 0,048 0,010 0,020 0,020 0,005 0,060       0,000 0,2 0,143 0,203
    26776 622 662 10,2 0,063 1,230 0,017 0,001 0,024 0,035 0,000 0,052 0,002 0,000 0,000 0,000 0,001 0,000 0,000   0,000   0,186 0,268
    46916 610 663 21,4 0,043 1,607 0,010 0,003 0,317 0,030 0,067 0,043 0,003 0,060 0,132 0,005 0,058   0,012 0,010 0,000   0,216 0,339

    Gemma Bertran Vidal
    Consultora Industrial
    Mb. (+34) 646190321
    Education courses


  • 2.  RE: Steel Quality S550MC

    Posted 07-29-2021 12:37
    Greetings!

    What exactly IS the problem?