ASTM E381 PDF

You are on page 1of 8 Search inside document wy! The method is limited in application to bars, billets, blooms, and forgings of carbon and low alloy steels, 1. It i the responsibility of the user of this standard to establish appro: priate safety and health practices and determine the applica bility of regulatory limitations prior 10 use. See the specific precautionary statement in 5. Curse edition approved Ot , , Phos October

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You are on page 1of 8 Search inside document wy! The method is limited in application to bars, billets, blooms, and forgings of carbon and low alloy steels, 1. It i the responsibility of the user of this standard to establish appro: priate safety and health practices and determine the applica bility of regulatory limitations prior 10 use.

See the specific precautionary statement in 5. Curse edition approved Ot , , Phos October Onin spproved in Terminology 3. Splash is normally associated with molten steel which solidifies and oxidizes during initial pouring and which is not completely redissolved by the remaining molten steel 3.

In ingot cast product, itis sometimes called ingotism or ingot patter. Dark center is solid material and should not be confused with center unsoundness.

They are usually found in continuously cast or bottom poured products. In fan etched transverse section, they appear as short, tight discontinuities which are usualy located in the midway to center location of the section. They are also known as shatter cracks or hairline cracks 3.

For a specific composition, a weak dendritic structure is associated with a low superheat while a strong dendritic structure is associated with a high superheat during casting. Compositional differ- ences also influence the clarity of the dendrites, 3.

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List of ASTM International standards

More E The method employs the action of an acid or other corrosive agent to develop the macrostructural characteristics of a suitably prepared specimen. Sulfur printing shall be performed in accordance with Practice E Examination and rating of specimens shall be in accordance with Sections 10 and 11 of this E standard. Continuously cast steel blooms and billets, in the as cast condition, shall be examined according to the procedures described in Sections 10 and With reductions over a area ratio, wrought product from continuously cast steel may be examined according to Section 9. Scope 1.

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Significance and Use 4. The method employs the action of an acid or other corrosive agent to develop the macrostructural characteristics of a suitably prepared specimen. Sulfur printing shall be performed in accordance with Practice E Examination and rating of specimens shall be in accordance with Sections 10 and 11 of this E standard. Continuously cast steel blooms and billets, in the as cast condition, shall be examined according to the procedures described in Sections 10 and With reductions over a area ratio, wrought product from continuously cast steel may be examined according to Section 9.

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