... alloy steel round bar 1. Grade GCr15=E52100 2.Size 30-100mm 3.MOQ 50mt 52100 alloy steel round bar 1 ... . Grade GCr15=E521002.Size 30-100mm(30 32 35 38 40-90 92 95 98 100mm)3 ... -0.45, Si: 0.15-0.35, Cr: 1.30-1.60, P:max0.025, S: max0.025 GCr15: C:0.95 ... -0.40, Si: 0.15-0.35, Cr: 1.30-1.65, P:max0.027, S: max0.0205.Quality ContationBoth end of ...