Reports on Material Testing from selected projects

Material qualification reports

ID ⇅ ⚙️ Material ⇅ ⚙️ Base/HAZ/Weld ⇅ ⚙️ Specimen type ⇅ ⚙️ Test pressure (bar) ⇅ ⚙️ H2% ⇅ ⚙️ 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 ⇅ ⚙️ Link ⇅ ⚙️ Gas composition ⇅ ⚙️ Testing method ⇅ ⚙️ Test duration ⇅ ⚙️ Applied initial stress intensity factor KIAPP (MPam1/2) ⇅ ⚙️ Crack propagation after hydrogen exposure ⇅ ⚙️ Project name ⇅ ⚙️ Date of publishing ⇅ ⚙️ Taken from ⇅ ⚙️ Diameter (mm) ⇅ ⚙️ Wall thickness (mm) ⇅ ⚙️ Production year ⇅ ⚙️ Production standard ⇅ ⚙️
1 X52 Base Notched 1 0 5,00E-05 4.6 28.62 758 710 Dimples higgsproject.eu Air SSRT HIGGS 14.03.2025
2 X52 Base Notched 80 100 5,00E-05 4.6 11.54 0.4 731 0.96 724 Dimples+cleavage Small higgsproject.eu 99,999 H2 SSRT HIGGS 14.03.2025
3 X60 Base Notched 1 0 5,00E-05 4.6 29.04 979 924 Dimples higgsproject.eu Air SSRT HIGGS 14.03.2025
4 X60 Base Notched 80 100 5,00E-05 4.6 9.71 0.33 903 0.92 903 Dimples+cleavage Small higgsproject.eu 99,999 H2 SSRT HIGGS 14.03.2025
5 X70 Base Notched 1 0 5,00E-05 4.6 22.27 1069 972 Dimples higgsproject.eu Air SSRT HIGGS 14.03.2025
6 X70 Base Notched 80 100 5,00E-05 4.6 9.37 0.42 965 0.90 958 Dimples+cleavage Small higgsproject.eu 99,999 H2 SSRT HIGGS 14.03.2025
7 X52 Base/TL 80 20 higgsproject.eu 20 mol% H2, 80 mol % CH4 80 mol % CH4 Constant displacement (CT-WOL) 2200-3000 32 HIGGS 14.03.2025
8 X52 Base/TL 80 20 higgsproject.eu 20 mol% H2, 4 mol% CO2, 11 ppmv H2S, 76 mol % CH4 Constant displacement (CT-WOL) 2200-3000 32 HIGGS 14.03.2025
9 X70 Base/TL 80 20 higgsproject.eu 20 mol% H2, 80 mol % CH4 Constant displacement (CT-WOL) 2200-3000 41 HIGGS 14.03.2025
10 X70 Base/TL 80 20 higgsproject.eu 20 mol% H2, 4 mol% CO2, 11 ppmv H2S, 76 mol % CH4 Constant displacement (CT-WOL) 2200-3000 41 HIGGS 14.03.2025
11 X70 Base/TL 80 20 higgsproject.eu 20 mol% H2, 4 mol% CO2, 11 ppmv H2S, 76 mol % CH4 Constant displacement (CT-WOL) 2200-3000 41 HIGGS 14.03.2025
12 X70 Base/TL 80 30 higgsproject.eu 30 mol% H2, 4 mol% CO2, 11 ppmv H2S, 66 mol % CH4 Constant displacement (CT-WOL) 2200-3000 55 HIGGS 14.03.2025
13 X70 Base/TL 80 30 higgsproject.eu 30 mol% H2, 4 mol% CO2, 11 ppmv H2S, 66 mol % CH4 Constant displacement (CT-WOL) 2200-3000 41 HIGGS 14.03.2025
14 X70 Base/TL 80 100 higgsproject.eu 100 mol% H2 Constant displacement (CT-WOL) 2200-3000 55 HIGGS 14.03.2025
15 X70 Base/TL 80 100 higgsproject.eu 100 mol% H2 Constant displacement (CT-WOL) 2200-3000 41 HIGGS 14.03.2025
16 X60 Base/TL 80 30 higgsproject.eu 30 mol% H2, 4 mol% CO2, 11 ppmv H2S, 66 mol % CH4 Constant displacement (CT-WOL) 2200-3000 45 HIGGS 14.03.2025
17 X60 Base/TL 80 100 higgsproject.eu 100 mol% H2 Constant displacement (CT-WOL) 2200-3000 45 HIGGS 14.03.2025
18 L290 NE 100 100 dvgw.de Fracture-Mechanical Testing 0 SyWest January 2023 longitudinally submerged arc-welded pipe 711 12 2020 ISO 3183 (2018-09)
19 5L Grade A 100 100 dvgw.de Fracture-Mechanical Testing 0 SyWest January 2023 seamless hot-rolled pipe 406 10 1962 API-STD 5L
20 St35 0/0.2/1/2/5/10/20/100 dvgw.de Fracture-Mechanical Testing 0 SyWest January 2023 pipe 400 10 1930 DIN 1629

Last updated: 05/03/2026
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