Overview
ISO 5019-1:1984 - Refractory bricks - Dimensions - Part 1: Rectangular bricks specifies standardized dimensions for rectangular refractory bricks used in industrial furnace construction. Published by ISO and prepared by Technical Committee ISO/TC 33 (Refractories), this first-edition standard defines two size series (64 mm and 76 mm thickness series) and lists the most commonly used brick sizes in millimetres. The document replaces the earlier ISO Recommendation R 475-1966.
Key topics and requirements
- Two series of dimensions: a 64 mm series and a 76 mm series (dimensions given in millimetres).
- Typical sizes included: examples from the standard include:
- Squares/straight: 230 × 114 × 64 and 230 × 114 × 76; 230 × 172 × 64 and 230 × 172 × 76; 345 × 114 × 64 and 345 × 114 × 76
- Splits: 230 × 114 × 32 and 230 × 114 × 38
- Tiles: 230 × 230 × 64 and 230 × 230 × 76
- Recommendation: adoption of the 76 mm series is strongly recommended.
- Tolerances: dimensional tolerances are not fixed in the standard; they are to be agreed between purchaser and supplier.
- Interoperability: the rectangular brick series may be used in conjunction with arch bricks whose dimensions are specified in ISO 5019‑2.
- Scope limitation: the standard covers a limited set of sizes but aims to include those most commonly used in furnace construction. It notes that some North American brick sizes closely approximate the listed dimensions (in North America a “square” is often called a “straight”).
Applications
ISO 5019-1 is directly useful for:
- Refractory manufacturers standardizing product lines
- Furnace, kiln and hearth designers specifying brickwork dimensions
- Procurement and quality control teams agreeing dimensions and tolerances with suppliers
- Foundries, steelworks, glass and ceramic plant engineers involved in rebuilding or maintaining refractory linings
- Contractors and installation engineers ensuring compatibility between modular bricks and arch elements
Using a common dimensional standard helps reduce onsite cutting, simplifies inventory, and improves interchangeability of refractory components.
Related standards
- ISO 5019-2 - Refractory bricks - Dimensions - Part 2: Arch bricks (for arch/curved brick dimensions)
- ISO/TC 33 publications and related refractory material standards
Keywords: ISO 5019-1, refractory bricks, rectangular bricks, brick dimensions, furnace construction, 64 mm series, 76 mm series, refractory standards, ISO refractory.
