Definition(s)

Heat Lot

  1. Batch furnace: bolting or raw material of a single heat and diameter, heat treated together as a single austenitizing, quenching, tempering, and stress-relieving charge.
  2. Continuous furnace: bolting or raw material of a single heat and diameter heat treated without interruption in a continuous charge (see 5.7).

Source: API Specification 20E, Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries, Second Edition, February 2017. Global Standards

Heat Lot

Material or components that are traceable to one heat of metallic material.

Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards

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