Materials for Machinery, Boilers, Pressure Vessels, and Piping-Boiler Rivet and Staybolt Steel and Rivets

摘要

The steel is to be made by one or more of the following processes: open-hearth, basic-oxygen or electric-furnace. All such bars and rivets will be examined at the mills by the Surveyor when specially requested by the purchaser. They are to be free from defects and have a workmanlike finish.