Corrosion tests
Sour gas corrosion testing
We perform resistance tests on hydrogen-induced cracking (HIC) and sulfide stress cracking (SSC) of steels for sour service applications under standardized or customized/in-field (fit-for-purpose) test conditions.
Our sour service corrosion tests cover all testing conditions according to Annex E of NACE MR0175/ISO 15156. In our certified laboratories, we can perform tests under a wide temperature and pressure range. In addition to H2S, any designated test gas mixtures can be used. We prepare laboratory specimens for you in our specialized mechanical workshop on request.
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The following sour service test methods are available:
Hydrogen-induced cracking (HIC)
Standardized laboratory samples are tested for resistance against hydrogen-induced cracking (HIC) according to NACE TM0284.
Test standards: NACE TM0284, EFC Publ. No. 16
Sulfide stress cracking (SSC)
Under sour service conditions and in the simultaneous presence of external tensile stresses, metalic materials can suffer sulfide stress cracking (SSC). Our laboratories can test both laboratory samples and full-size samples according to NACE TM0177 and NACE TM0316 standards.
Test standards: NACE TM0177, NACE TM0316, ASTM G39, EFC Publ. No. 16
Corrosion testing on metallic materials
We focus on the corrosion testing of low and high-alloy steels, nickel-base alloys and metallic coatings. We also offer failure analyses to metalic materials caused by hydrogen.
The range of tests offered by our modern, accredited laboratories includes:
Intergranular corrosion
We offer a wide range of test methods on the susceptibility of metals to intergranular corrosion. The standardized tests are conducted in copper/copper-sulfate-containing sulfuric acid solutions and are evaluated according to various modalities.
Test standards: ASTM G28, ASTM A262, ASTM A763, DIN EN ISO 3651, SEP 1877
Pitting and crevice corrosion
Resistance to pitting and crevice corrosion in high-alloy (austenite, ferrite, duplex) and related materials can be determined by immersing an oxidizing, chloride-containing medium.
Test standards: ASTM G48, ASTM G78, ASTM G150
Stress corrosion cracking and corrosion fatigue
The tests for stress corrosion cracking and corrosion fatigue are carried out on notched or unnotched round tensile test specimens. With simultaneous exposure in corrosive environment, such as aqueous solutions containing sodium chloride, mixed salts, or gases and gas mixtures, the material is subjected to constant or cyclical tensile loading.
With our modern equipment, we can also control test parameters such as temperature, pressure and electrochemical control.
Test standards: DIN EN ISO 7539, NACE TM0198
Electrochemical tests
Electrochemical measurement methods allow early and additional findings about the corrosion behavior of metallic materials. These can and should be used to supplement traditional corrosion tests.
Test standards: ASTM G5, DIN EN ISO 12732
Hydrogen permeation
We conduct tests to measure hydrogen permeation and to determine the absorption and transport of hydrogen atoms in metals. Various procedures can be used to determine the effective diffusivity and, if necessary, the effect of reversible and irreversible hydrogen traps.
Test standard: ISO 17081
We conduct all corrosion tests under standard or operating conditions.
We would be glad to advise you on the selection of materials for an extremely wide range of corrosive conditions, also regarding to appropriate tests. We are also accredited for failure assessments and root cause analyses. Ask us about it!
Corrosion tests for surface-finished thin steel sheet
We test the corrosion protection of galvanized, chemically treated, painted or duplex-coated steel sheet in climatic tests or corrosion tests that are standardized or relevant for later use.
Tests in condensation water climates
DIN EN ISO 6270-2 | AHT, AT or CH |
| DIN EN 13523-26 | Water condensation test |
DIN EN 13523-27 | Cataplasm test |
VW PV1200 | Test of resistance to climate changes (+80/-40°C) |
BSH LV 02 C | Climate change test according to BSH |
BSH LV 02 A Miele MWN 1174 | Resistance to water vapor |
Durability test with chemical media
Miele MWN 1174 | Durability test with chemical media |
| BSH LV 02 C | Durability test with artificial sweat |
BSH LV 02 A Miele MWN 1174 | Water storage, detergent test |
| DIN EN 13523-11 | MEK-Test |
Alternative corrosion resistance tests with salt spray and humidity
E DIN 55635 VDA 233-102 SEP1850 | Cyclic corrosion test of materials |
DIN EN ISO11997-1B VDA 621-415 | Determination of resistance |
| VW PV1210 | Corrosion testing of chassis and add-on parts |
DIN EN ISO 9227 | Corrosion testing in artificial atmospheres; salt spray tests |