API 20B-2020 pdf download.Open Die Shaped Forgings for Use in the Petroleum and Natural Gas Industry.
1 Scope 1.1 Purpose documentation of open die shaped forgings for use in the petroleum and natural gas industries when referenced 1.2 Applicability conditions warrant the use of individually shaped open die forgings, including rolled rings. Examples include pressure containing or load bearing components. Forged bar, rolled bar, and forgings from which multiple parts are removed are beyond the scope of this The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies.
3.1.5 compliance Act or process of satisfying legal or other applicable requirements of a regulation or regulating body. 3.1.6 conformance 3.1.7 crop/cropping Removal of the end(s) of ingots, billets, or blooms that may contain primary pipe or other defects. 3.1.8 Final hot work process performed by the forging manufacturer. 3.1.9 forging The product of a substantively compressive plastic working operation that consolidates the material and produces the desired shape. NOTE The plastic working operation may be performed by a hammer press, press forging machine, or ring rolling machine, and must deform the material to produce a wrought structure. 3.1.10 Fiber-like lines appearing on polished and etched sections of forgings caused by orientation of the constituents of the metal in the direction of working during forging. 3.1.11 heat 3.1.12 heat treatment mechanical properties. 3.1.13 heat treat lot, batch furnace Material placed on loading or carrying devices and moved through a heat treat cycle in the same furnace, including the same quenching practice.
3.1.22 outsourced A function or process that is performed by an external supplier conforming to a quality management system for the activities performed on behalf of the forging manufacturer. 3.1.23 prolongation An extension of metal added to a forging to permit removal and subsequent testing without destroying the 3.1.24 Surface-rupture NDE indication with major dimensions greater than 3 / 16 in. (5 mm). NOTE Inherent indications not associated with a surface rupture are considered non-relevant. 3.1.25 rolled ring Circular open die forgings produced on a ring mill. 3.1.26 starting material The raw material used to produce a forging. Examples are billets, ingots, and blooms. 3.1.27 technical audit An onsite documented review of procedures, processes, and controls performed by competent personnel. 3.1.28 traceability 3.1.29 wrought structure A hot worked or forged structure that contains no cast dendritic elements.
188.8.131.52.2 Test Method If any indications are believed to be non-relevant on the basis that they are not associated with a surface rupture (i.e., magnetic permeability variations, non-metallic stringers), they shall be examined by liquid-penetrant surface 184.108.40.206.3 Acceptance Criteria The following acceptance criteria shall apply: a) no relevant indication with a major dimension equal to or greater than 3 / 16 in. (5 mm); b) no more than ten relevant indications in any continuous 6 in. 2 (40 cm 2 ) area; c) four or more relevant indications in a line separated by less than 1 / 16 in. (1.6 mm) (edge-to-edge) are unacceptable. 220.127.116.11 Volumetric Examination 18.104.22.168.1 Sampling interpretation of the results of the examination. For quench-and-tempered products, the volumetric inspection or re-tempering to reduce hardness. 22.214.171.124.2 Test Method The distance amplitude curve (DAC) shall be based on a 1 / 16 through 1 1 / 2 in. (38 mm), on a 1 / 8 1 / 2 in. (38 mm) through 6 in. (150 mm), and on a 1 / 4 126.96.36.199.3 Acceptance Criteria The following acceptance criteria apply: a) no single indication exceeding reference distance amplitude curve;