Mechanical and metallurgical testing ensures cast components meet specified strength, hardness, chemical composition, and structural requirements.
Material properties are the foundation of casting performance. A component may pass dimensional and visual inspection yet fail in service because its tensile strength, hardness, or microstructure does not meet specification. Mechanical and metallurgical testing provides the quantitative, documented evidence that material properties meet design requirements — essential for customer approval, export certification, and failure investigation.
Mechanical testing covers the full property profile required for casting acceptance: tensile testing (UTS, 0.2% proof stress, elongation, reduction of area) per IS 1608 / ASTM E8; hardness testing by Brinell (HBW, per IS 1500 / ASTM E10), Rockwell (HRC, HRB, per ASTM E18), and Vickers (HV, per IS 1501 / ASTM E384); Charpy V-notch impact testing at specified temperatures per IS 1598 / ASTM E23; and bend testing for weld procedure qualification.
Chemical composition analysis uses optical emission spectrometry (OES) for rapid, accurate multi-element analysis of iron, steel, and aluminium alloys. Results are compared against relevant composition standards (IS, ASTM, DIN) to verify charge mix compliance and detect undesirable tramp elements.
Metallurgical examination includes microstructure preparation (cutting, mounting, polishing, etching) and optical microscopy at 50–1000× magnification for graphite morphology assessment (grey and SG iron per IS 7754 / ASTM A247), grain size measurement (ASTM E112), phase identification, heat treatment verification, and failure origin analysis.
Failure analysis services combine fractographic examination, hardness mapping, microstructural assessment, and chemical analysis to determine whether failure was caused by material deficiency, processing error, overload, fatigue, or environmental attack. Applicable to iron, steel, aluminium, and copper alloy castings across all industries requiring material certification.
We coordinate with NABL-accredited testing laboratories to issue test reports carrying NABL endorsement — a requirement for many export markets including GCC countries, the EU, and the USA. We manage sample submission, witness testing where required, and compile the final certificate package on your behalf.
A standard mechanical test certificate covering tensile (3 specimens), hardness (3 readings), and impact (3 specimens) at the heat or batch level requires 6–9 test pieces prepared from separately cast test bars or cut from agreed locations on the casting. Chemical composition requires only a small chip or disc sample from the melt.
Yes. Failure analysis is one of our core metallurgical services. We require the fracture surfaces (protected from cleaning or further damage), background information on the service history, applied loads, and environment, plus any available manufacturing records. We issue a formal failure analysis report with root cause determination and corrective action recommendations.
