Intergranular Corrosion (IGC) or Intergranular Attack (IGA), is an efficient test for screening a material’s corrosion resistance under certain conditions. Using a variety of methods, including ASTM A262, ASTM G28 and ASTM A763, we can provide critical data about the metals corrosion resistance to prevent failures in the field.
Intergranular corrosion refers to material degradation that occurs along the grain boundaries of metallic materials after exposure to a corrosive environment. The sustainability of certain stainless steels to IGC can be influenced by prior thermal processing and welding, which is referred to as sensitization. While the damage may not be immediately visible, intergranular corrosion can cause loss of strength and integrity in a material, resulting in defects or critical failures.
Intergranular Corrosion (IGC) testing
Element’s intergranular corrosion testing helps reveal errors of batches that are incorrectly processed, and highlight any areas where updates are needed. We utilize different chemicals and test conditions to evaluate a range of metallic materials for intergranular corrosion, including stainless steel (austenitic, duplex and ferritic grades), nickel alloys, and aluminum alloys.
The Element advantage
With proven expertise in corrosion testing, failure analysisand material properties testing across industries, we are the partner of choice for your intergranular corrosion testing program. Our Engaged Experts have years of experience working with metallic materials and can assist in choosing the most appropriate method for evaluating the intergranular corrosion resistance of your material.
For more information about our Intergranular Corrosion (IGC) Testing services, or to request a quote, contact us today.
Our Intergranular Corrosion Test Methods
Austenitic and Duplex Stainless Steels
- ASTM A262 Practice, A, B, C, E, F
- ASTM G108
- ISO 3651
Ferritic Stainless Steels
- ASTM A763 Practices, W, X, Y, Z
- ASTM G28 Method A & B
- ASTM G67
- ASTM G110
ASTM A262 Testing
We provide intergranular corrosion testing to most major methods listed in ASTM A262, including the Oxalic acid test (ASTM A262 Practice A),Streicher test (ASTM A262 Practice B), Huey test (ASTM A262 Practice C), Strauss test (ASTM A262 Practice E) and copper sulfate test (ASTM A262 Practice F).
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