ASTM-C774 Standard Test Method for Yield Strength of Enameling Steels After Straining and Firing

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Standard Test Method for Yield Strength of Enameling Steels After Straining and Firing



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1.1 This test method covers determination of the yield strength of steel specimens after simulated forming and enamel firing operations.

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 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.

Significance and Use

5.1 In the manufacture of porcelain enameled ware, sheet steel is subjected to forming operations and subsequently to firing of the enamel at temperatures, typically, of 1400 to 1550°F (760 to 844°C). Some steels used for porcelain enameling are subject to grain growth in critically strained areas resulting in loss of strength.

5.2 This may lead to easy deformation of the steel and damage to the porcelain enamel coating.

5.3 This test method may be correlated with transit or use tests to evaluate the suitability of steel for porcelain enameled ware.


ICS Number Code 25.220.50 (Enamels)

To find similar documents by ASTM Volume:

02.05 (Metallic and Inorganic Coatings; Metal Powders and Metal Powder Products)

To find similar documents by classification:

25.220.50 (Enamels)

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Document Number


Revision Level

1988 R16 EDITION



Modification Type


Publication Date

Nov. 15, 2016

Document Type

Test Method

Page Count

2 pages

Committee Number