Info Request
Request Quote
Newsletter Sign Up
  • About
      • Overview
      • Partnerships
      • Management
      • Quality Assurance
      • Laboratories
      • Business Ethics
      • Accreditations
  • Services
      • Additive Manufacturing Testing
      • Analytical Lab
      • Charpy Testing
      • Chemical Testing
      • Composite Testing
      • Corrosion Testing
      • Creep Testing
      • CTOD Testing
      • Fatigue Testing
      • Fastener Testing
      • Fracture Toughness
      • Heat Treat
      • Impact Testing
      • Jominy End Quench Test
      • Machine Shop
      • Materials Testing
      • Mechanical Engineering
      • Mechanical Testing
      • Metallography
      • Tensile Testing
      • Physical Properties Testing
      • Powder Sieve Analysis Testing
      • Thermal Analysis
      • R&D
  • Industries
      • Additive Manufacturing
      • Aerospace
      • Automotive
      • Composites
      • Fasteners
      • Medical
      • Oil and Gas
      • Power Generation
  • Media
      • News
      • Events
      • Photo Gallery
      • Video Gallery
      •   Facebook
      •   Twitter
      •   Youtube
      •   Linkedin
  • Contact us
      • Contact us
      • Information Request
      • Request a Quote
      • Shipping Information
      •  
      • Location
      • World Headquarters
      • wmt&r
      • Shipping & Visitors Address:
      • 221 Westmoreland Drive Youngstown, PA 15696-0388 USA

      • Mailing Address:
      • P.O. Box 388 Youngstown, PA 15696-0388 USA

  • Careers
  • UK Location

ASTM A262


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


This specification covers the standard practices for detecting susceptibility to intergranular attack in austenitic stainless steels. These practices include five intergranular corrosion tests, namely: (1) oxalic acid etch test for classification of etch structures of austenitic stainless steels; (2) ferric sulfate-sulfuric acid test, (3) nitric acid test and (4) copper-copper sulfate-sulfuric acid test for detecting susceptibility to intergranular attack in austenitic stainless steels; and (5) copper-copper sulfate-50% sulfuric acid test for detecting susceptibility to intergranular attack in molybdenum-bearing cast austenitic stainless steels. Methods for preparing the test specimens, rapid screening tests, apparatus setup and testing procedures, and calculations and report contents are described for each testing practice. The etch structure types used to classify the specimens are: step structure, dual structure, ditch structure, isolated ferrite, interdendritic ditches, end-grain pitting I, and end-grain pitting II.

For the official standard, please visit ASTM International.


To request a quote for ASTM A262 testing, visit WMT&R’s Quote Request page.

Analytical Testing


ASTM A262 »
ASTM B117 (Salt Spray Test) »
ASTM B368 (CASS Test) »
ASTM G85 »
ASTM G85 A1 »
ASTM G85 A2 »
ASTM G85 A3 »
ASTM G85 A4 »
ASTM G85 A5 »
Chemical Testing »
Corrosion Testing »
Metallography »