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Standard Practice for Electromagnetic (Eddy-Current) Examination of Ferromagnetic Cylindrical Bar Product Above the Curie Temperature
STANDARD published on 10.9.1999
Designation standards: ASTM E1312-99
Note: WITHDRAWN
Publication date standards: 10.9.1999
SKU: NS-41232
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
Bars (ferromagnetic), Calibration-metals/alloys analysis instrumentation, Curie temperature, Damage, Defects, Discontinuities, Eddy current examination, Electromagnetic (eddy current) testing, Ferromagnetic material, Ferrous metals/alloys, Hot cylindrical bars, Manufacturing processes, Signal/noise determination, Steel bars, Surface analysis-metals/alloys, Temperature tests-elevated, electromagnetic (eddy current) examination of ferromagnetic cylindrical
1. Scope | ||||||||||
1.1 This practice describes procedures for eddy-current examination of hot ferromagnetic bars above the Curie temperature where the product is essentially nonmagnetic, but below 2100°F (1149°C). 1.2 This practice is intended for use on bar products having diameters of 1/2 in. (12.7 mm) to 8 in. (203 mm) at linear throughput speeds up to 1200 FPM (366 MPM). Larger or smaller diameters may be examined by agreement between the using parties. 1.3 The purpose of this document is to provide a procedure for in-line eddy-current inspection of bars during processing for the detection of major or gross surface discontinuities. 1.3.1 The types of discontinuities capable of being detected are commonly referred to as: slivers, laps, seams, roll-ins (scale, dross, etc.) and mechanical damage such as scratches, scores or indentations. 1.4 This practice does not establish acceptance criteria. They must be specified by agreement between the using parties. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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