ASTM G4-95 - 10.10.2001
 
1. Scope

1.1 This guide covers procedures for conducting corrosion tests in plant equipment or systems under operating conditions to evaluate the corrosion resistance of engineering materials. It does not cover electrochemical methods for determining corrosion rates.

1.1.1 While intended primarily for immersion tests, general guidelines provided can be applicable for exposure of test specimens in plant atmospheres, provided that placement and orientation of the test specimens is non-restrictive to air circulation.

1.2 The values stated in SI 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. See also 10.4.2.

 
2. Referenced Documents

G41-90(2018)

Standard Practice for Determining Cracking Susceptibility of Metals Exposed Under Stress to a Hot Salt Environment

A262-15(2021)

Standard Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels

E3-11(2017)

Standard Guide for Preparation of Metallographic Specimens

G1-03(2017)e1

Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens (Includes all amendments and changes 12/8/2017).

G15-08

Standard Terminology Relating to Corrosion and Corrosion Testing (Withdrawn 2010)

G16-13(2019)

Standard Guide for Applying Statistics to Analysis of Corrosion Data

G30-22

Standard Practice for Making and Using U-Bend Stress-Corrosion Test Specimens

G36-94(2018)

Standard Practice for Evaluating Stress-Corrosion-Cracking Resistance of Metals and Alloys in a Boiling Magnesium Chloride Solution

G37-98(2021)

Standard Practice for Use of Mattsson's Solution of pH 7.2 to Evaluate the Stress-Corrosion Cracking Susceptibility of Copper-Zinc Alloys

G44-21

Standard Practice for Exposure of Metals and Alloys by Alternate Immersion in Neutral 3.5 % Sodium Chloride Solution

G46-21

Standard Guide for Examination and Evaluation of Pitting Corrosion

G47-22

Standard Test Method for Determining Susceptibility to Stress-Corrosion Cracking of 2XXX and 7XXX Aluminum Alloy Products

G58-85(2023)

Standard Practice for Preparation of Stress-Corrosion Test Specimens for Weldments

G78-20

Standard Guide for Crevice Corrosion Testing of Iron-Base and Nickel-Base Stainless Alloys in Seawater and Other Chloride-Containing Aqueous Environments

RP0497

Field Corrosion Evaluation Using Metallic Test Specimens