Visual TestMaterial should be free from deep cracks, laps, pits, rust, excessive scaling, peeling, miss-rolls and bends.
Test for Surface Defects of Raw MaterialMaterial should be free from harmful defects like cracks and seam.
Internal SoundnessInternal Finish to have No Pipe, Segregations, Pin Holes, Center Looseness, Flaking, Course Dendrites.
Dimensional AnalysisDimensions of the material are checked with Vernier Caliper.
Brinell Hardness Testing or As Rolled Hardness
Chemical AnalysisTo check % Carbon estimation, % Manganese estimation, % Sulphur estimation and like-wise Silicon, Phosphorous, Nickel, Molybdenum and Chromium estimation is done.
Inclusion Rating TestDetects presence of non-metallic inclusions like Sulphide, Alumina, Silicate and Globular oxide. If these found would destroy the product machinability and performance.
Grain Size Test
Step Down Test
Brinell Hardness Testing.
Rockwell Hardness Testing.
Spark TestFor Testing Carbon content. This test is common for both raw material as well as after hardening .
Spectral TestFor Testing Chromium content. This test is common for both raw material as well as after hardening.
Microstructure Examinationdetects uniform distribution of Ferrite which is soft and Lamellar Pearlite which is hard without harmful continues banding Bainite, if found or present it should be less than 10 %.
Izod Impact Test and Charpy Impact TestThese tests are done to check the Impact strength.
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