Reports on Material Testing from selected projects
Material testing reports
| ID | Project name | Date of publishing | Link | Testing method | Material | Base/HAZ/Weld | Specimen type | Test pressure (bar) | Gas composition | H2% | Test duration | Applied initial stress intensity factor KIAPP (MPam1/2) | Crack propagation after hydrogen exposure | Strain rate (mm/s) | Stress concentration factor of the notched specimen (Kt) | RA (reduction of area, %) | RA ratio | NTS (notched tensile strength, MPa) | NTS ratio | Yield strength (Mpa) | Feacture mechanism | Hydrogen Emrittlement | Taken from | Diameter (mm) | Wall thickness (mm) | Production year | Production standard |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | HIGGS | 14.03.2025 | higgsproject.eu | SSRT | X52 | Base | Notched | 1 | Air | 0 | 5,00E-05 | 4.6 | 28.62 | 758 | 710 | Dimples | |||||||||||
| 2 | HIGGS | 14.03.2025 | higgsproject.eu | SSRT | X52 | Base | Notched | 80 | 99,999 H2 | 100 | 5,00E-05 | 4.6 | 11.54 | 0.4 | 731 | 0.96 | 724 | Dimples+cleavage | Small | ||||||||
| 3 | HIGGS | 14.03.2025 | higgsproject.eu | SSRT | X60 | Base | Notched | 1 | Air | 0 | 5,00E-05 | 4.6 | 29.04 | 979 | 924 | Dimples | |||||||||||
| 4 | HIGGS | 14.03.2025 | higgsproject.eu | SSRT | X60 | Base | Notched | 80 | 99,999 H2 | 100 | 5,00E-05 | 4.6 | 9.71 | 0.33 | 903 | 0.92 | 903 | Dimples+cleavage | Small | ||||||||
| 5 | HIGGS | 14.03.2025 | higgsproject.eu | SSRT | X70 | Base | Notched | 1 | Air | 0 | 5,00E-05 | 4.6 | 22.27 | 1069 | 972 | Dimples | |||||||||||
| 6 | HIGGS | 14.03.2025 | higgsproject.eu | SSRT | X70 | Base | Notched | 80 | 99,999 H2 | 100 | 5,00E-05 | 4.6 | 9.37 | 0.42 | 965 | 0.90 | 958 | Dimples+cleavage | Small | ||||||||
| 7 | HIGGS | 14.03.2025 | higgsproject.eu | Constant displacement (CT-WOL) | X52 | Base/TL | 80 | 20 mol% H2, 80 mol % CH4 80 mol % CH4 |
20 | 2200-3000 | 32 | <0.25mm (no crack growth) | |||||||||||||||
| 8 | HIGGS | 14.03.2025 | higgsproject.eu | Constant displacement (CT-WOL) | X52 | Base/TL | 80 | 20 mol% H2, 4 mol% CO2, 11 ppmv H2S, 76 mol % CH4 | 20 | 2200-3000 | 32 | <0.25mm (no crack growth) | |||||||||||||||
| 9 | HIGGS | 14.03.2025 | higgsproject.eu | Constant displacement (CT-WOL) | X70 | Base/TL | 80 | 20 mol% H2, 80 mol % CH4 | 20 | 2200-3000 | 41 | <0.25mm (no crack growth) | |||||||||||||||
| 10 | HIGGS | 14.03.2025 | higgsproject.eu | Constant displacement (CT-WOL) | X70 | Base/TL | 80 | 20 mol% H2, 4 mol% CO2, 11 ppmv H2S, 76 mol % CH4 | 20 | 2200-3000 | 41 | <0.25mm (no crack growth) | |||||||||||||||
| 11 | HIGGS | 14.03.2025 | higgsproject.eu | Constant displacement (CT-WOL) | X70 | Base/TL | 80 | 20 mol% H2, 4 mol% CO2, 11 ppmv H2S, 76 mol % CH4 | 20 | 2200-3000 | 41 | <0.25mm (no crack growth) | |||||||||||||||
| 12 | HIGGS | 14.03.2025 | higgsproject.eu | Constant displacement (CT-WOL) | X70 | Base/TL | 80 | 30 mol% H2, 4 mol% CO2, 11 ppmv H2S, 66 mol % CH4 | 30 | 2200-3000 | 55 | <0.25mm (no crack growth) | |||||||||||||||
| 13 | HIGGS | 14.03.2025 | higgsproject.eu | Constant displacement (CT-WOL) | X70 | Base/TL | 80 | 30 mol% H2, 4 mol% CO2, 11 ppmv H2S, 66 mol % CH4 | 30 | 2200-3000 | 41 | <0.25mm (no crack growth) | |||||||||||||||
| 14 | HIGGS | 14.03.2025 | higgsproject.eu | Constant displacement (CT-WOL) | X70 | Base/TL | 80 | 100 mol% H2 | 100 | 2200-3000 | 55 | <0.25mm (no crack growth) | |||||||||||||||
| 15 | HIGGS | 14.03.2025 | higgsproject.eu | Constant displacement (CT-WOL) | X70 | Base/TL | 80 | 100 mol% H2 | 100 | 2200-3000 | 41 | <0.25mm (no crack growth) | |||||||||||||||
| 16 | HIGGS | 14.03.2025 | higgsproject.eu | Constant displacement (CT-WOL) | X60 | Base/TL | 80 | 30 mol% H2, 4 mol% CO2, 11 ppmv H2S, 66 mol % CH4 | 30 | 2200-3000 | 45 | <0.25mm (no crack growth) | |||||||||||||||
| 17 | HIGGS | 14.03.2025 | higgsproject.eu | Constant displacement (CT-WOL) | X60 | Base/TL | 80 | 100 mol% H2 | 100 | 2200-3000 | 45 | <0.25mm (no crack growth) | |||||||||||||||
| 18 | SyWest | January 2023 | dvgw.de | Fracture-Mechanical Testing | L290 NE | 100 | 100 | 0 | longitudinally submerged arc-welded pipe | 711 | 12 | 2020 | ISO 3183 (2018-09) | ||||||||||||||
| 19 | SyWest | January 2023 | dvgw.de | Fracture-Mechanical Testing | 5L Grade A | 100 | 100 | 0 | seamless hot-rolled pipe | 406 | 10 | 1962 | API-STD 5L | ||||||||||||||
| 20 | SyWest | January 2023 | dvgw.de | Fracture-Mechanical Testing | St35 | 0/0.2/1/2/5/10/20/100 | 0 | pipe | 400 | 10 | 1930 | DIN 1629 |
Last updated: 20/05/2025
