Technical Scope & Inspection Capabilities
Diffraction-based volumetric weld testing that measures the time of flight of diffracted tip signals rather than reflected amplitude. Delivers the industry's most accurate defect height sizing (accuracy within ±0.5mm), making it the gold standard for Fitness-For-Service (FFS) and fracture mechanics evaluations.
Industrial Applications in Chennai
Heavy wall reactor vessels, thick-walled piping, spherical LPG storage tanks, bridge steel structures, and pre-commissioning baseline scans.
Frequently Asked Questions (Chennai Region)
Why is TOFD superior for defect sizing compared to conventional UT?
Conventional UT relies on echo amplitude which fluctuates with defect orientation and surface roughness. TOFD relies solely on ultrasonic diffraction time from crack tips, enabling sub-millimeter flaw height sizing independent of beam angle. Our teams serve facilities across Chennai, Chennai & Suburban Districts with Same-day Mobilization (< 2 hours).
What is the lateral wave and backwall dead zone in TOFD?
TOFD has near-surface dead zones under the lateral wave and backwall. For complete 100% volumetric coverage, AMEEE combines TOFD with Phased Array (PAUT) in a single integrated scan. Our teams serve facilities across Chennai, Chennai & Suburban Districts with Same-day Mobilization (< 2 hours).
Can TOFD inspect austenitic stainless steel welds?
TOFD is highly effective on carbon and low-alloy steels. On austenitic materials, grain scattering requires specialized low-frequency longitudinal wave probes, which our Level III team configures and qualifies. Our teams serve facilities across Chennai, Chennai & Suburban Districts with Same-day Mobilization (< 2 hours).