What are the sample sizes required for DSS testing?
The following are the samples sizes required for various testing on a DSS material. – Pitting Test: 25mm X t X 50 mm where t (thickness) should be 10 mm. If the material has more thickness then you should cut the sample to 10mm in thickness. – Crevice Test: 25mm X t X 50 mm where t (thickness) should be 10 mm. If the material has more thickness then you should cut the sample to 10mm in thickness. – Chloride Stress Test: 15mm X 15mm X 125mm – Ferrite Test: 1 inch X 1inch – Sulphide Stress Corrosion Test (SSCC): 15mm X 15mm X 150mm – Intergranular Corrosion (IGC): 25mm X t X 25mm (where thickness can be anything) – Hardness Test: 25mm X t X 25mm (where thickness can be anything) – Impact Test: We will need 6 samples from the same material of the size 15mm X 15mm X 55 mm – Tensile Test: 16mm X 16mm X 150mm With respect to Hydrogen Induced Cracking (HIC) testing on a flange, we will need to get a sample of the following size: 20 mm width X 100 mm length X T. Please note that T (thickness)
