Following checks are conducted in round bars and reported in the TEST CERTIFICATE as per customer requirements:
Surface inspection (Magnetic Particle Inspection) is carried out end to end.
Positive Material Identification using XRF to certify in-process chemistry of each bar.
100%-dimensional verification using calibrated Verniers and Go/No-Go gauges.
Step down testing
Upset forging test
NMIR (Nonmetallic Inclusion Rating)
Macrostructure testing
Microstructure phase analysis
Grain size analysis
Ultrasonic Testing for internal defects
Radioactivity test
Gas analysis (O, N, H)
Mechanical properties, including impact (-190°C to 660°C)