AWS A4.2M:2006 PDF
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Standard Procedures for Calibrating Magnetic Instruments to Measure Delta Ferrite Content of Austenitic and Duplex Ferritic-Austenitic Stainless Steel Weld Metal (ISO 8249:2000 Mod.)
standard by American Welding Society, 07/10/2006
Calibration procedures are specified for a number of commercial instruments that can then provide reproducible measurements of the ferrite content of austenitic stainless steel weld metals. Certain of these instruments can be further calibrated for measurements of the ferrite content of duplex ferritic-austenitic stainless steel weld metals. Calibration with primary standards (nonmagnetic coating thickness standards from the U.S. National Institute of Standards and Technology) is the preferred method for appropriate instruments. Alternatively, these and other instruments can be calibrated with weld-metal-like secondary standards. Reproducibility of measurement after calibration is specified. Problems associated with accurate determination of ferrite content are described.
Product Details
- Published:
- 07/10/2006
- ISBN(s):
- 0871710447
- ANSI:
- ANSI Approved
- Number of Pages:
- 58
- Note:
- This product is unavailable in Ukraine, Russia, Belarus
