Due to higher content of residual deleterious elements in scrap, the arc furnace charging should contain iron/hot metal or DRI in definite proportion to decrease the content of residual deleterious elements in steel for oil well.

• 因废钢中残余有害元素含量较高 ,为降低油井用钢的残余元素含量 ,应在电弧炉炉料中加入一定比例的生铁 (铁水 )或直接还原铁