项目 item

指-------标 index

RL-65

RL-55

RL-48

AL2O3,%≥

65

55

48

耐火度，℃ ≥
Refractoriness

1790

1770

1750

0.20MPa荷重软化开始温度，
℃ ≥ 
Temp of Soft Begin Under
0.2MPa Load

1500

1470

1420

重烧线变化，%
The Chang of
Reheat Linear

1500℃2h 

+0.1
-0.4

aaa

1450℃ 2h

Aaa

+0.1
-0.4

显气孔率，%≤
Apparent Porosity

24

常温耐压强度,MPa≤
Normal Temp Crushing
Strength

49.0

44.1

39.2

热稳定性次数
Heat Theating Stability
times

实测数据在质量证明书中注明
Explanation of the Test Date in the Quality Certificate