Industry data

Industry numbers, with their sources.

Every figure is written with its source and its limits. We do not publish numbers we cannot verify.

Topics

Weld repair rate

How often are welds repaired, and what does repair cost include? Figures with sources.

Data loss at handover

How much construction data is lost on the way to operations? With the limits of the measurement.

Material traceability

How does the wrong material reach the field, and how does a record catch it?

Test package and hydrotest

A test package is not the same as a hydrostatic test; which one is being discussed and when?

Latest articles

Industry data

Rework and scattered data, with their sources

Published studies on the cost of rework and how much of it comes from project data, with their years, samples and limits.

Oct 8, 2026 · 6 min read

Industry data

Industry numbers, with their methods

Published studies on rework, information search, weld repair, material traceability and test packages in industrial construction, with their years, samples and limits.

Sep 30, 2026 · 6 min read

Calculate with your own numbers

Annual repair cost from three numbers in your own records.

Weld volume per year (dia-inch). The thousands separator can be a dot or a comma (6.000 or 6,000 = six thousand).
dia-inch
Repaired dia-inch ÷ total dia-inch. Not the same as the first-radiograph rejection rate. Reference (not a default; not dia-inch based, it is count or length based): in TWI’s industry survey the average weld repair rate in oil-and-gas and power work is 1-3%, local peaks up to 25%; 2011 survey, sample not stated, calculation methods differ. Source: TWI, “Repair statistics of manufacturing and fabrication welding”.
%
Cost to you of one repaired dia-inch (USD). Add up removal/gouging, re-welding, re-radiography, labour and schedule impact from your own records.
USD

Annual repair cost

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Enter all three values.

Values are calculated in your browser and are not sent to a server.

Can you get these numbers from your own records? Weld log, NDE and repair records give them.

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