Fire brick Specifications and Tolerance

Fire Brick Specifications
Brick Dimensions Dimensional Tolerance(mm) Warpage Out of Squareness
(mm) HA85 ranges HA60 ranges Tolerance(mm) Tolerance(mm)
100 ±1.5 ±1.0 0.75 1.5
≥100 ≤150 ±2.0 ±1.0 0.75 1.5
≥150 ≤200 ±2.5 ±1.5 1 2
≥200 ≤250 ±2.5 ±1.5 1.25 2
≥250 ≤300 ±2.5 ±2.0 1.5 2
≥300 ±3.0 ±3.0 1.5 2