Corrosion Testing

Corrosion is the natural deterioration of a metallic substance (pure metal or alloy) under the effect of environmental conditions, which are governed by temperature, chemical composition of pollutants/corrodants, humidity, and other factors. The environment to which a test material is exposed determines its corrosion behavior. Since Corrosion affects almost every conceivable substance, be it in our daily lives or in industrial applications, it is extremely important to conduct ‘Corrosion Testing‿and utilize the test results for the purpose of product improvement and minimizing huge economic losses. Hence, such testing activities can be used for ‘Failure Analysis‿of a variety of commercial engineering materials.

Based on the appearance of corroded metal/material, Corrosion can be classified into a number of different types. The morphology of the attack is the basis of such a classification, and some of the types are Uniform/General Corrosion, Pitting corrosion, crevice corrosion, Galvanic corrosion, Inter-granular corrosion etc.

Spectro Research Lab Ventures (P) Ltd. recognizes the importance of ‘Corrosion Testing‿and its applications to a number of industries like electrical power plants, chemical processing plants etc. and is efficient in conducting a variety of such tests. Some of the tests conducted at Spectro’s testing facilities are as follows:

Inter-granular corrosion tests conducted at Spectro

  • Oxalic Acid Test, ASTM A 262, Practice A/li>
  • Ferric Sulfate - Sulfuric Acid, ASTM A262 - Practice B
  • Nitric Acid, ASTM A262, Practice C, (Huey Test)
  • Copper - Copper Sulfate - 16% sulfuric acid, ASTM A262 - Practice E (Straus Test)
  • Copper - Copper Sulfate - 50% sulfuric acid, ASTM A262 - Practice F
  • Salt Spray (Neutral / Fog), ASTM B117
  • Salt Spray Test (CASS)
  • Pitting Corrosion Test, ASTM Gr 48
  • Crevice Corrosion
  • Hydrogen-Induced Cracking (HIC) Test, NACE TMO284
  • Sulfide Stress Corrosion Cracking (SSCC), NACE TM 0177
  • Chloride Stress Corrosion Test as per ASTM Gr 36 Specification
  • Corrosion test as per ASTM Gr 35 specification
  • Corrosion test as per ASTM A 761 Specification

Major Equipments Used For Corrosion Testing at Spectro

  • IGC Apparatus (All Practices)
  • HIC Apparatus
  • SSC Apparatus
  • Salt Spray Test Apparatus
  • Cass Test Apparatus
  • Carbon Test Apparatus
  • Potentiometer Test Apparatus
  • Ammonia Vapour Test Apparatus
  • Crevice Corrosion Test Apparatus
  • Electrolyte Etching Machine