ASTM E381 PDF

Forgings1. This standard is issued under the fixed designation E ; the number 1 This method is under the jurisdiction of ASTM Committee E04 on Metallog-. ASTM E Standard Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings. Find the most up-to-date version of ASTM E at Engineering

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Historical Version s – view previous versions of standard. The metallurgical engineering team at SGS MSi has the expertise to meet all your material requirements for acid etch processes. The method is limited in application to bars, billets, blooms, and forgings of carbon and low alloy steels.

Click here to request a quote. Evaluation of machined parts for grinding cracks in tools and dies.

Study of weld structures, definition of weld penetration, dilution of filler metal by base metals, entrapment of flux, porosity, and cracks in weld and heat affect zones, etc. Sulfur printing shall be performed in accordance 3e81 Practice E Link to Active This link will always route to the current Active version of the standard. Macroetch Examinations Macroetching, also known as deep etching, involves etching specimens prepared with a suitable acid or reagent for macrostructural examination at low magnifications and rating by a grades series of photographs showing the incidence of certain conditions such as: Contact our sales team to assist in specification review or a cost estimate for your testing.

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The method employs the action of an acid or other corrosive agent to develop the macrostructural characteristics of a suitably prepared specimen.

ASTM E – 17 – Standard Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings

Click here to request a quote Chicago Lab: Development of grain flow in a forged part or fastener, which is a critical property for the integrity of the forging. Other applications of macroetching include: With reductions over a 3: 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.

See the specific precautionary statement in 5. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Establishment of general standards for acceptance or rejection for all conditions is impractical as some conditions must be considered relative to the part in which it occurs.

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Go to Navigation Go to Content. Macroetching, also known as deep etching, involves etching specimens prepared with a suitable acid or reagent for macrostructural examination at low magnifications and rating by a grades series of photographs showing the incidence of certain conditions such as: Continuously cast steel blooms and billets, in the as cast condition, shall be examined according to the procedures described in Sections 10 and Steels react differently to etching reagents because of variations in chemical composition, method of manufacture, heat treatment and many other variables.

The most common reagent for macroetching iron and steel is a 1: Examination and rating of specimens shall be in accordance with Sections 10 and 11 of this E standard. Evaluation of heat treated parts to determine locations of hard or soft spots, tong marks, quench cracks, case depth in induction hardened or carburized parts, and effectiveness of stop-off coatings.