The manufactureris responsible for specifying the exactdimensions, type, concentration, and metallurgical propertiesof metal fiber reinforcement in castable refractories. These fibers are often integral to the formulation and performance of the material and are introduced during manufacturing (not field mixing), with characteristics tailored to improve thermal shock resistance and crack propagation control.
API 936 defers to the manufacturer’s technical data for the design and quality control of any material component, including reinforcement. The contractor is responsible for verifying that materials match the manufacturer’s documented specification.
[Reference:, API Std 936, Section on “Material Submittals” and “Manufacturer’s Technical Datasheets”, API TR 978, Section on “Metallic Reinforcement in Monolithics” indicates that fiber specs are a manufacturer responsibility, ]
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