Low Creep Brick for Hot-Blast Stove
Product description
| X-H21 | X-H22 | X-H23 | X-H24 | X-H26 | X-H27 | X-231 | X-HSPCD | ||
Al2O3 ≥% | 75 | 80 | 65 | 65 | 60 | 50 | 65 | 50 | ||
Fe2O3 ≤% | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 2.00 | ||
Apparent porosity | 20 | 21 | 19 | 23 | 23 | 23 | 20 | 24 | ||
Bulk density | 2.60 | 2.65 | 2.45 | 2.40 | 2.30 | 2.20 | 2.1 | 2.1 | ||
Cold crushing strength ≥MPa | 55 | 45 | 55 | 45 | 40 | 40 | 60 | 35 | ||
Refracoriness ≥℃ | 1850 | 1850 | 1850 | 1820 | 1790 | 1770 | 1790 | |||
Linear change after heating(3h) | (1550℃) 0.2 | (1550℃) | (1450℃) 0.2 | (1400℃) | (1300℃) | (1270℃) | (1450℃) | |||
Creep 0.2Mpa(50h) ≤% | (1450℃) 0.8 | (1450℃) 0.8 | (1450℃) 1.0 | (1400℃) | (1300℃) | (1270℃) | (1450℃) |
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