Stress Corrosion Cracking Test

We perform stress corrosion testing on samples in accordance with NACE standards in chlorinated solutions with mixtures containing H₂S or according to customer specifications. Our equipment allows us to perform tests according to the following characteristics: - ambient pressure and temperature conditions, according to NACE TM0177 method A - high pressure and high temperature conditions, according to NACE TM0177 up to level VII as expressed by NACE TM017

We perform SSRT stress corrosion testing in accordance with NACE TM0198 and ASTM G129, subjecting the test specimens to slow tensile stress in chlorinated solutions and H₂S mixtures. The tests are carried out in a 3-litre Hastelloy autoclave with the following characteristics: - load capacity up to 30 KN - deformation capacity up to 30 mm - constant deformation speed adjustable from 1×10¯⁸ to 1×10¯ᶟ mm/s. With our CERT machine, tests can also be performed under high temperature and pressure conditions.

We perform tests according to NACE TM0177 method A, operating at ambient pressure and temperature with various mixtures of H₂S and chlorinated solutions. Read the in-depth article ‘Improvement of the Test Equipment for a Stress Corrosion Lab through the Axiomatic Design’ (link https://www.pontlab.it/articolo-su-procedia-cirp/ ).

We perform tests in an autoclave made of Hastelloy with a capacity of 15 litres, capable of operating at pressures up to 103 bar and maximum temperatures of 210°C. Exposure can be carried out on test pieces, on tensioned test pieces (deflection in 3 or 4 points, C-ring) or on products/components made of metal, polymer or various types of coatings.

HIC tests (Hydrogen Induced Cracking) are performed to assess the resistance of metallic materials to hydrogen embrittlement in corrosive environments, a phenomenon that can compromise the structural integrity of materials, causing internal cracking and a reduction in mechanical strength. These tests are essential for sectors such as oil & gas, energy and the chemical industry, where materials are frequently exposed to aggressive conditions with high concentrations of hydrogen. HIC tests identify a material's susceptibility to degradation, supporting the choice of suitable alloys and treatments to prevent structural damage.

We perform ammonia exposure tests to verify the resistance of materials and coatings to corrosion caused by this aggressive gas. The test is particularly useful in the automotive, HVAC, electronics and industrial sectors subject to ammonia vapours and is applied to metals, protective coatings and plastic components to assess chemical and structural alterations.