Ultrasonic Testing (UT) Services in Kolkata 2026 — ASNT Level III Led

Why Kolkata generates UT demand

Kolkata anchors eastern India's industrial corridor: IOCL's Haldia refinery and the petrochemical complex beside it downriver, Garden Reach's warship building, the Kolkata and Haldia port systems, and the Durgapur–Burnpur steel belt inland — an old industrial base whose ageing plant needs more examination, not less.

In refining, UT is the backbone of the corrosion programme — thickness monitoring at condition monitoring locations across crude, vacuum and coker circuits, shear-wave and phased array on repair welds, and high-temperature techniques where insulation cannot come off.

Marine work is thickness gauging at scale — hull plating diminution against class allowables, tank internals, and shaft and rudder stock examination during docking.

Steel producers run automated UT on plate and bar as a mill process, and maintenance teams use manual UT on mill housings, rolls and crane structures.

Power plant UT ranges from boiler tube thickness campaigns to turbine rotor bore and blade root examination, where phased array brings coverage a single-angle probe cannot.

What typically gets examined

In practice that means UT work across refinery and petrochemical equipment at Haldia, warship and commercial hulls at Garden Reach, port infrastructure and cargo gear, blast furnaces and mills in the steel belt, and legacy thermal power plant — with scope set by the damage mechanisms each asset actually runs, not by a standard menu.

Certification and acceptance in Kolkata

IBR governs the boiler stock, classification societies and naval rules the shipbuilding, and IOCL and SAIL their own agency approvals; personnel certification is ISNT (NCB) — whose national office sits in Kolkata — or ASNT where contracts import it.

Examinations themselves are performed to ASME Section V Articles 4 and 5, ISO 17640 and ISO 16810, with thickness data feeding API 510, 570 and 653 remaining-life calculation. The evidence chain — technician certification current on the day, instrument and reference block calibration, and the procedure revision in force — travels with every report, because that bundle is what an audit actually checks.

Working with Atlantis in Kolkata

Atlantis delivers ultrasonic testing through inspection teams mobilised to site, working under Atlantis procedures with ASNT Level III oversight — we are straightforward that this is a mobilised model rather than a walk-in local office, because for planned inspection work that is usually the better arrangement anyway: the crew, procedures and equipment arrive matched to your scope. Read the UT service overview, see how results are recorded and retrieved, or tell us about the Kolkata scope and we will respond with an honest view on mobilisation.

What Atlantis provides in Kolkata is set out in full on the ultrasonic testing services page — thickness surveys, weld examination, corrosion mapping and phased array performed to a qualified procedure.