Iterm

index

DRL-155

DRL-150

DRL-145

DRL-140

DRL-135

DRL-130

DRL-127

ω(Al₂O₃)/%

≥75

≥75

≥65

≥65

≥65

≥60

≥50

apparent porosity/%

≤20

≤21

≤21

≤22

≤22

≤22

≤23

Volume concentration,g/cm^-3

2.65-2.85

2.65-2.85

2.50-2.70

2.40-2.60

2.35-2.55

2.30-2.50

2.30-2.50

cold crushing strength/MPa

≥60

≥60

≥60

≥55

≥55

≥55

≥50

creep rate/%

0.2MPa,50h

≤0.8

1550

≤0.8

1500

≤0.8

1450

≤0.8

1400

≤0.8

1350

≤0.8

1300

≤0.8

1270

Linear chage/%

1550,2h

0.1-0.2

0.10.2

0.10.2

1450,2h

0.1-0.4

0.1-0.4

0.1-0.4

0.1-0.4

Thermal shock resistance

1100water-cool

/time

(roofshift wall brick)provide date