高Alumina砖

Iterm indexDRL-155DRL-150DRL-145DRL-140DRL-135DRL-130DRL-127ω(Al2O3)/%≥75≥75≥65≥65≥65≥60≥50apparent porosity/%≤20≤21≤21≤22≤22≤22≤23Volume concentration,g/cm-3 2.65-2.852.65-2.852.50-2.702.40-2.602.35-2.552.30-2.502.30-2.50cold crushing strength/MPa≥60≥60≥60≥55≥55≥55≥50creep rate/%0.2MPa,50h≤0.81550≤0.81500≤0.81450≤0.81400≤0.81350≤0.81300≤0.81270Linear chage/%1550,2h0.1-0.20.10.20.10.21450,2h0.1-0.40.1-0.40.1-0.40.1-0.4Thermal shock resistance1100water-cool /time(roofshift wall brick)provide date