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Inspection technician working on pipework at an industrial processing plant

Global NDT & inspection portal

Find your next NDT job. Hire certified inspectors.

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Integrity Solutions DOO

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ForTest Air Leak Testing

ForTest designs and manufactures air leak testing and flow testing equipment for industrial inspection and quality control. They are modern, fast, reliable and traceable. The new

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RAYSONIC NDT

RAYSONIC NDT Services is a pioneer service provider since 2012 in oil and gas industries globally, providing Non-Destructive Testing, Heat Treatment and related services. We also manufacture NDT Flaw Implanted Specimens, various Heat…

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NDT Exhibition

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Magnaflux Magnaflux Visit stand → RAYSONIC NDT RAYSONIC NDT Visit stand → NDT Level 3 Services NDT Level 3 Services Visit stand → Integrity Solutions DOO Integrity Solutions DOO Visit stand → ForTest Air Leak Testing ForTest Air Leak Testing Visit stand → Global Pageant Global Pageant Visit stand → NDT Service LLP NDT Service LLP Visit stand → Max Nexus Singapore Pte Ltd Max Nexus Singapore Pte Ltd Visit stand → SIUI SIUI Visit stand → NDT Inspect NDT Inspect Visit stand →
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NDT Forum

Technical threads on UT, RT, PAUT, TOFD, MPI, PT and ECT, plus certification and procedure questions.

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Product exhibition

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Company directory

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News & insight

Technical articles and industry updates

Written for people who do the work, not for search engines.

Careers

NDT Jobs for Freshers: How to Get Hired

Read: NDT Jobs for Freshers: How to Get Hired

Method

PAUT Total Focusing Method (TFM)

Read: PAUT Total Focusing Method (TFM)

Industry

The Future of Non-Destructive Testing: What Every Professional and Company Needs to Know

Read: The Future of Non-Destructive Testing: What Every Professional and Company Needs to Know

Certification

NDT Certification and Career Pathways: A Comprehensive Guide

Read: NDT Certification and Career Pathways: A Comprehensive Guide
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NDT Calculators

Check your numbers before the job

Near field, beam paths, TOFD depth, exposure and dose, prod spacing, dwell times, remaining life and more. Each calculator shows its formula, a worked example and the standard it comes from.

  • UTBeam and sound field

    Near field length, circular probe

    Near-field (Fresnel zone) length N = D²f/4c for a circular single-crystal probe, with the wavelength it is built on.

    General engineeringFree

  • PAUTSensitivity, scanning and data

    Maximum PAUT scan speed

    Highest encoded scan speed that still records every acquisition point, from the frame rate and the scan axis resolution.

    General engineeringFree

  • TOFDDepth and sizing

    ToFD depth from time of flight

    Converts a measured ToFD arrival time into the depth of the diffracting tip below the scanning surface.

    ISO 10863 · ASME VFree

  • RTSources and exposure

    Source decay

    Calculates the present activity of a gamma radiography source from its assay activity and the elapsed time, for any of the common industrial isotopes.

    IAEAFree

  • MTCoils and cable wraps

    Coil shot current, low fill factor

    Ampere-turns and coil current for longitudinal magnetisation in a low fill factor coil - part against the coil wall, NI = 45 000/(L/D), or suspended in the coil centre, NI = 43 000 R/(6 L/D - 5).

    ASME V · ASTM E1444Free

  • PTDwell and process times

    Penetrant dwell time

    Minimum penetrant and developer dwell times from ASME V Table T-672 by material and product form, with the standard temperature range check.

    ASME V · ASTM E165Free

  • ETFrequency and depth

    Standard depth of penetration

    Eddy current standard depth of penetration (skin depth) from resistivity, relative permeability and test frequency, with field strength at the far surface.

    ASNTFree

  • LTUnit converters

    Leak rate unit converter

    Converts a leak rate between mbar·L/s, Pa·m³/s, atm·cc/s, Torr·L/s, sccm and scfh so acceptance criteria and instrument readings can be compared.

    ISO 20484 · ISO 2533Free

  • MATWelding

    Carbon equivalent CE(IIW), Pcm and CET

    Calculates the IIW carbon equivalent, the Ito-Bessyo Pcm cracking parameter and the EN 1011-2 CET from steel chemistry, with a weldability band.

    EN 10025 · APIFree

  • FFSMetal loss and remaining strength

    API 579 Level 1 general metal loss

    Runs the API 579-1 Part 4 Level 1 assessment for general metal loss: length for thickness averaging, the two acceptance checks and the MAWP from the averaged wall.

    API 579-1 · ASME FFS-1

Open all 193 calculators 12 free, no account needed

Videos

Equipment and inspection videos

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