HAR 6-77-25
HAR 6-77-25 Marking of materials
fitting, length of pipe, and other component must be marked:#
(1)As prescribed in the specification or standard to which it was manufactured; or#
(2)To indicate size, material, manufacturer, pressure rating, and temperature rating, and as appropriate, type, grade, and model.#
(b)Surfaces of pipe and components that are subject to stress from internal pressure may not be field die stamped.#
(c)If any item is marked by die stamping, the die must have blunt or rounded edges that will minimize stress concentrations.#
(d)Subsection#
(a)does not apply to items manufactured before November 12, 1970, that meet all of the following:#
(1)The item is identifiable as to type, manufacturer, and model.#
(2)Specifications or standards giving pressure, temperature, and other appropriate criteria for the use of items are readily available. [Eff ] (Auth: HRS '269-6) (Imp: 49#