Corrosion Testing

Standing Up to Environmental Conditions

Corrosion testing ASTM A262Laboratory Testing Inc. offers a full array of corrosion testing services at our Philadelphia, PA (USA) area facility to ensure the performance of metals, platings and coatings. Accelerated Intergranular Corrosion Testing is available to detect corrosion susceptibility in a relatively short period of time.

Corrosion analysis can be just as helpful in identifying corrodents and environmental factors once an unexpected corrosion problem occurs with a product in service.

Corrosion Testing Capabilities at LTI

The corrosion specialists perform Salt Spray Testing, Humidity Testing, Passivation Testing and many more corrosion analysis services according to ASTM and other industry standards:

  • Susceptibility to Intergranular Attack in Austenitic Stainless Steels (ASTM A262 Practice A, B, C, E, F)
  • Detrimental Intermetallic Phase in Duplex Austenitic/Ferritic Stainless Steels (ASTM A923 Method C)
  • Aluminum Exfoliation Test (ASTM G34)
  • Pitting and Crevice Corrosion Resistance of Stainless Steels and Related Alloys (ASTM G48 Methods A, B, C, D, E, F)
  • Visual Assessment of Exfoliation Corrosion Susceptibility of 5XXX Series Aluminum Alloys (ASSET Test) (ASTM G66-99(2005)e1)
  • Susceptibility to Intergranular Corrosion in Wrought, Nickel-Rich, Chromium-Bearing Alloys (ASTM G28 Methods A, B)
  • Susceptibility to Intergranular Corrosion of 5XXX Series Aluminum Alloys by Mass Loss After Exposure to Nitric Acid (NAMLT Test) (ASTM G67-04)
  • Salt spray testingHumidity Test (AMS 2700)
  • Passivation Test (ASTM A380, ASTM A967 & MIL-STD 753 Methods 102, 103)
  • Salt Spray Test / Salt Fog (ASTM B117 Testing)
  • HIC Testing
  • Coating Evaluation (Adhesion, Thickness)
  • Hydrogen Embrittlement
  • Intergranular Oxidation
  • Post Exposure Evaluation
  • Sensitization
  • Sigma Chi Phase

** Find out the sample size needed for testing before sending your material.

SEM/EDS Analysis

An SEM/EDS system at Laboratory Testing provides extensive corrosion testing capabilities. The system is particularly helpful in microanalysis with its high resolution imaging capabilities to a magnification of 300,000x for analyzing small areas of interest on samples. The SEM/EDS is also used for analysis of corrosion deposits to identify the corrosive agent.

Valuable Information for Product Development Through End Use

Corrosion testing determines the susceptibility of materials to corrosion under certain environmental conditions. Since all metals and alloys are susceptible to corrosion, test results can help businesses make sound decisions.

The effects of corrosion can be costly and devastating, so it generally makes sense to perform testing before damage occurs, often during product design. Corrosion analysis can also help identify a corrodent or an environmental cause, if an unexpected corrosion problem occurs.

corrosion_testingLTI offers testing to provide answers for all your corrosion needs:

  • Comparing and selecting appropriate materials
  • Evaluating protective treatments
  • Estimating the life of products
  • Determining if material will meet its intended application
  • Identifying corrodents and environmental factors responsible for corrosion attack
  • Establishing the root cause of a product failure

Test Methods/Specifications

  • Humidity corrosion testing environmental chamberAMS 2700
  • ASTM A262 Practice A, B, C, E, F **
  • ASTM A380
  • ASTM A923 Methods A, C **
  • ASTM A967
  • ASTM B117
  • ASTM G1
  • ASTM G28 Methods A, B
  • ASTM G34
  • ASTM G48 Methods A, B, C, D, E, F **
  • ASTM G66-99(2005)e1
  • ASTM G67-04
  • MIL-STD 753 Methods 102, 103

About Test Processes

Salt Spray Test

Our ASTM salt spray test, also known as salt fog test, is performed according to the ASTM B117 testing method. This includes testing of a material in a controlled corrosive environment which has been used to produce relative corrosion resistance information for specimens of metals and coated metals. At LTI, the test is run in a new salt spray chamber with precision temperature control.

Humidity Test

Our environmental chamber is ideal for ensuring the reliability of products such as electronic items through exposure to thermal cycling, fast temperature cycling, and extreme temperature and humidity conditions. Temperature testing is available in the range of -94°F to +356°F (-70°C to +180°C). The humidity test is in the range of 10% to 95% relative humidity and simulates a damp environment. The humidity and temperature working ranges comply with DIN, ISO, MIL, IEC, DEF and ASTM testing standards.

Passivation Test

Passivation testing looks at surface passivity of corrosion-resistant steel parts. It may also be useful in determining if there is a need for passivation.

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“I had an urgent request today for hardness testing to be performed by an independent lab to support our own testing for our customer and the end user. Your team was very accommodating as we received the results prior to a critical meeting. I greatly appreciate LTI’s efforts for the rapid turnaround!”

Tim Steber,
Regional Sales Manager


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