冶炼资讯：
两者比较，强磁选尾矿档次低，可直接作为合格尾矿扔掉，而螺旋溜槽尾矿档次相对稍高。两种抛尾设备处理量大、运转牢靠。4选用强磁选抛尾—摇床选别流程可得到产率13.28%、档次39.98%、收回率64.74%的铬精矿，精矿中SiO2含量4.7%。螺旋溜槽抛尾—摇床选别流程可取得精矿档次39.54%、产率12.5%、铬收回率6.28%的目标，精矿中SiO2含量为4.15%。前者选别目标相对较好。因为铬是用处最多的金属，并且在“战略金属”中列位。
欧标角钢钢执行标准：EN标准
欧标角钢规格型号表
品 名 规格型号 材质 米重/公斤
欧标角钢 30*30*3 S235/275/355/JR/J0/J2 1.36
欧标角钢 40*40*4 S235/275/355/JR/J0/J2 2.42
欧标角钢 40*40*5 S235/275/355/JR/J0/J2 2.97
欧标角钢 50*50*4 S235/275/355/JR/J0/J2 3.06
欧标角钢 50*50*5 S235/275/355/JR/J0/J2 3.77
欧标角钢 50*50*6 S235/275/355/JR/J0/J2 4.47
欧标角钢 60*60*4 S235/275/355/JR/J0/J2 3.70
欧标角钢 60*60*5 S235/275/355/JR/J0/J2 4.57
欧标角钢 60*60*6 S235/275/355/JR/J0/J2 5.42
欧标角钢 63*63*6 S235/275/355/JR/J0/J2 5.72
欧标角钢 65*65*4 S235/275/355/JR/J0/J2 4.02
欧标角钢 65*65*5 S235/275/355/JR/J0/J2 4.97
欧标角钢 65*65*8 S235/275/355/JR/J0/J2 7.73
欧标角钢 70*70*6 S235/275/355/JR/J0/J2 6.38
欧标角钢 70*70*7 S235/275/355/JR/J0/J2 7.38
欧标角钢 70*70*8 S235/275/355/JR/J0/J2 8.37
欧标角钢 75*75*5 S235/275/355/JR/J0/J2 5.76
欧标角钢 75*75*6 S235/275/355/JR/J0/J2 6.85
欧标角钢 75*75*7 S235/275/355/JR/J0/J2 7.93
欧标角钢 80*80*5 S235/275/355/JR/J0/J2 6.17
欧标角钢 80*80*6 S235/275/355/JR/J0/J2 7.34
欧标角钢 80*80*7 S235/275/355/JR/J0/J2 7.49
欧标角钢 80*80*8 S235/275/355/JR/J0/J2 9.63
欧标角钢 90*90*7 S235/275/355/JR/J0/J2 9.61
欧标角钢 90*90*8 S235/275/355/JR/J0/J2 10.9
欧标角钢 90*90*9 S235/275/355/JR/J0/J2 12.2
欧标角钢 90*90*10 S235/275/355/JR/J0/J2 13.4
欧标角钢 100*100*8 S235/275/355/JR/J0/J2 12.2
欧标角钢 100*100*9 S235/275/355/JR/J0/J2 13.6
欧标角钢 100*100*10 S235/275/355/JR/J0/J2 15
欧标角钢 100*100*11 S235/275/355/JR/J0/J2 16.4
欧标角钢 110*110*9 S235/275/355/JR/J0/J2 15
欧标角钢 110*110*10 S235/275/355/JR/J0/J2 16.6
欧标角钢 110*110*11 S235/275/355/JR/J0/J2 18.2
欧标角钢 110*110*12 S235/275/355/JR/J0/J2 19.7
欧标角钢 120*120*8 S235/275/355/JR/J0/J2 14.7
欧标角钢 120*120*9 S235/275/355/JR/J0/J2 16.5
欧标角钢 120*120*10 S235/275/355/JR/J0/J2 18.2
欧标角钢 120*120*11 S235/275/355/JR/J0/J2 19.9
欧标角钢 120*120*12 S235/275/355/JR/J0/J2 21.6
欧标角钢 130*130*10 S235/275/355/JR/J0/J2 19.8
欧标角钢 140*140*10 S235/275/355/JR/J0/J2 21.4
欧标角钢 150*150*10 S235/275/355/JR/J0/J2 23
欧标角钢 160*160*14 S235/275/355/JR/J0/J2 33.9
欧标角钢 180*180*13 S235/275/355/JR/J0/J2 35.7
欧标角钢 200*200*13S235/275/355/JR/J0/J2 39.8
欧标角钢 250*250*17 S235/275/355/JR/J0/J2 64.4
欧标角钢低合金钢中通常加入0.3%的铜。在这种含量下，铜能改善耐腐蚀性能，并使度性能有所提高。此外，这样的含铜量对钢的可焊性无不良作用，而且不会引起红脆现象。
淄博欧标角钢140*140*10缺口韧性