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Corrosion tests

Laboratory for sour gas corrosion: HIC and SCC testing – updated to state-of-the-art standards in 2017
Photo shows Phalanx Cortest-Rings of the laboratory for sour gas corrosion.

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.
Ask us about it!

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

Stress-oriented hydrogen-induced cracking (SOHIC)

In the newly developed SOHIC-specific “twist and bend” test, materials can be analyzed specifically for SOHIC resistance.

Standardization of this test is currently under preparation.

CAPCIS or full ring tests

In tests according to OTI 95635 and BS 8701, full pipe segments are tested for a resistance to hydrogen-induced cracking (HIC) and sulfide stress cracking (SSC).

Test standards: OTI 95635, BS 8701


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

Natural weather testing

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
and components in automotive construction

DIN EN ISO11997-1B

VDA 621-415

Determination of resistance
under cyclic corrosion conditions

VW PV1210 Corrosion testing of chassis and add-on parts

DIN EN ISO 9227

Corrosion testing in artificial atmospheres; salt spray tests

We carry out corrosion tests in state-of-the-art laboratories accredited according to DIN EN ISO/IEC 17025.



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