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  • ASTM
    G28-02(2008) Standard Test Methods for Detecting Susceptibility to Intergranular Corrosion in Wrought, Nickel-Rich, Chromium-Bearing Alloys
    Edition: 2008
    Unlimited Users - 1 Loc per year

Description of ASTM-G28 2008

ASTM G28 - 02(2008)

Standard Test Methods for Detecting Susceptibility to Intergranular Corrosion in Wrought, Nickel-Rich, Chromium-Bearing Alloys

Active Standard ASTM G28 | Developed by Subcommittee: G01.05

Book of Standards Volume: 03.02

Translated Standard: Russian
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Significance and Use

The boiling ferric sulfate-sulfuric acid test may be applied to the following alloys in the wrought condition:

Alloy Testing Time, h
N06007 120
N06022 24
N06030 120
N06059 24
N06200 24
N06455 24
N06600 24
N06625 120
N06686 24
N06985 120
N08020 120
N08367 24
N08800 120
N08825 A 120
N10276 24

A While the ferric sulfate-sulfuric acid test does detect susceptibility to inter- granular corrosion in Alloy N08825, the boiling 65 % nitric acid test, Practices A 262 , Practice C, for detecting susceptibility to intergranular corrosion in stainless steels is more sensitive and should be used if the intended service is nitric acid.

This test method may be used to evaluate as-received material and to evaluate the effects of subsequent heat treatments. In the case of nickel-rich, chromium-bearing alloys, the test method may be applied to wrought and weldments of products. The test method is not applicable to cast products.

1. Scope

1.1 These test methods cover two tests as follows:

1.1.1 Method A, Ferric Sulfate-Sulfuric Acid Test (Sections 3-10, inclusive)

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