用于炼钢的焦炭的各项指标

炼钢的焦炭的各项指标

...........>40............. >25 ....................25-40
灰分Ad/% Ⅰ...............不大于12.00
Ⅱ.........................12.01-13.50
Ⅲ.........................13.51-15.00

硫分St,d/% Ⅰ..............不大于0.060
Ⅱ.........................0.61-0.80
Ⅲ ........................0.81-1.00

机械强度
抗碎强度
M25/% Ⅰ............大于92.0
Ⅱ.................92.0-88.1.....................按供需双方协议
Ⅲ .................88.0-83.0

耐抹强度Ⅰ..........不大于7.0
M10/% ..Ⅱ...........8.5.........................按供需双方协议
........Ⅲ ..........10.5

挥发分Vdaf/%..................不大于 1.9
水分含量Mt/% 4.0±1.0 ........5.0±2.0 ...........不大于12.0
焦末含量/% 不大于 4.0 ...........5.0................. 12.0

注:水分只作为生产操作中控制技术,不作质量考核依据