ASTM G103-97(2016)
Standard Practice for Evaluating Stress-Corrosion Cracking Resistance of Low Copper 7XXX Series Al-Zn-Mg-Cu Alloys in Boiling 6&x2009;% Sodium Chloride Solution

Standard No.

ASTM G103-97(2016)

Release Date

1997

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM G103-97(2023)e1

Latest

ASTM G103-97(2023)e1

Scope

4.1 This practice is normally used for stress-corrosion screening for the development of Al-Zn-Mg-Cu alloys containing less than 0.268201;% copper. Effects on stress-corrosion resistance due to variables such as composition, thermo-mechanical processing, other fabrication variables, and magnitude of applied stress may be compared.

4.2 For a given mechanical method of stressing, the relative stress-corrosion resistance of the low copper Al-Zn-Mg-Cu alloys in atmospheric exposure correlates better with performance in boiling 68201;% sodium chloride solution than with other accelerated testing media (7-9). In addition, this practice is relatively rapid.

4.3 This practice is not applicable to 2XXX (Al-Cu), 5XXX (Al-Mg), 6XXX (Al-Mg-Si), and the 7XXX (Al-Zn-Mg-Cu) series alloys containing more than 1.28201;% copper.

4.3.1 For 7XXX series alloys containing between 0.268201;% and 1.28201;% copper, there is no general agreement as to whether this practice or Practice G44 correlates better with stress-corrosion resistance in service (5-8, 10).

1.1 This practice primarily covers the test medium which may be used with a variety of test specimens and methods of applying stress. Exposure times, criteria of failure, and so on, are variable and not specified.

1.2 This stress-corrosion testing practice is intended for statically loaded smooth non-welded or welded specimens of 7XXX series Al-Zn-Mg-Cu alloys containing less than 0.268201;% copper.

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. See Section 8 for additional precautions.

ASTM G103-97(2016) Referenced Document

• ASTM B580 Standard Specification for Anodic Oxide Coatings on Aluminum*， 2019-04-01 Update
• ASTM D1193 Standard Specification for Reagent Water*， 1999-04-20 Update
• ASTM G30 Standard Practice for Making and Using U-Bend Stress-Corrosion Test Specimens
• ASTM G38 Standard Practice for Making and Using C-Ring Stress-Corrosion Test Specimens
• ASTM G39 Standard Practice for Preparation and Use of Bent-Beam Stress-Corrosion Test Specimens*， 2021-05-01 Update
• ASTM G44 Standard Practice for Exposure of Metals and Alloys by Alternate Immersion in Neutral 3.5?% Sodium Chloride Solution*， 1999-04-20 Update
• ASTM G49 Standard Practice for Preparation and Use of Direct Tension Stress-Corrosion Test Specimens*， 2023-11-01 Update
• ASTM G58 Standard Practice for Preparation of Stress-Corrosion Test Specimens for Weldments*， 2023-12-01 Update

ASTM G103-97(2016) history

• 2023 ASTM G103-97(2023)e1 Standard Practice for Evaluating Stress-Corrosion Cracking Resistance of Low Copper 7XXX Series Al-Zn-Mg-Cu Alloys in Boiling 6 % Sodium Chloride Solution
• 1997 ASTM G103-97(2016) Standard Practice for Evaluating Stress-Corrosion Cracking Resistance of Low Copper 7XXX Series Al-Zn-Mg-Cu Alloys in Boiling 6&x2009;% Sodium Chloride Solution
• 1997 ASTM G103-97(2011) Standard Practice for Evaluating Stress-Corrosion Cracking Resistance of Low Copper 7XXX Series Al-Zn-Mg-Cu Alloys in Boiling 6% Sodium Chloride Solution
• 1997 ASTM G103-97(2005) Standard Practice for Evaluating Stress-Corrosion Cracking Resistance of Low Copper 7XXX Series Al-Zn-Mg-Cu Alloys in Boiling 6% Sodium Chloride Solution
• 1997 ASTM G103-97 Standard Practice for Evaluating Stress-Corrosion Cracking Resistance of Low Copper 7XXX Series Al-Zn-Mg-Cu Alloys in Boiling 6% Sodium Chloride Solution