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ASTM A561-71(1999)
Standard Recommended Practice for Macrotech Testing of Tool Steel Bars
STANDARD published on 10.9.1999
The information about the standard:
Designation standards: ASTM A561-71(1999)
Note: WITHDRAWN
Publication date standards: 10.9.1999
SKU: NS-3098
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM A561-71(1999) :
Keywords:
Etching-macroetching, Steel bars-tool steel, Tool steel, macroetch testing of tool steel bars, practice, ICS Number Code 77.140.60 (Steel bars and rods)
Additional information
| 1. Scope | ||
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1.1 This recommended practice for macroetch testing has been found to be a useful and reliable method for evaluating the quality of tool steel bars. It is used as a quality control and inspection test to reveal by deep acid etching the macrostructure in specimens cut from bars and to show the presence of such conditions as pipe, cracks, porosity, segregation, or foreign material. The etched surface is generally examined visually, but magnification up to about 10X is occasionally employed. |
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| 2. Referenced Documents | ||
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