HBS fireclay brick
PRODUCT SPECIFICATIONS
Items | RN-42 | RN-40 | V7 |
Al2O3 % | ≥42 | ≥40 | ≥42 |
Fe2O3% | ≤1.6 | ||
Refractoriness ℃ | ≥1750 | ≥1730 | |
Apparent porosity % | ≤24 | ≤24 | ≤16 |
Bulk density g/cm3 | 2.0~2.2 | 2.0~2.2 | ≥2.30 |
Cold crushing strength / MPa | ≥29.4 | ≥24.5 | ≥60（50） |
Refractoriness under load ℃ | ≥1400 | ≥1350 | T2≥1480 |
Permanent liner change % | 1400℃×2h 0 ~ -0.4 | 1350℃×2h 0 ~ -0.5 | 1450℃×4h 0 ~ -0.2 |
Used Part | Stove wall | Burner | |