Quality, at
every stage.
Inspection is part of the manufacturing routine at ESTM: from incoming steel coils to completed tube profiles, with dimensional, visual and mechanical checks.
Checks built into our process.
Our team regularly examines incoming coil condition, measures tube thickness and dimensions, visually checks finished profiles, and performs bending and flattening checks.
These procedures are established factory practices. We're improving how individual results are recorded, so we do not claim that every check already has a fully traceable inspection report.
Ask about testing & documents ↗
From coil to finished tube.
Performed according to production needs. Test sampling and acceptance criteria are agreed based on the relevant order and specifications.
Raw material inspection
Incoming steel coils are inspected for suitability and visible surface condition before production.
Dimensional control
Wall thickness, outside dimensions and profile consistency are checked during manufacturing.
Weld & surface inspection
Visual checks assess weld-seam appearance, surface finish and visible imperfections.
Bending checks
Physical bending checks are used to assess tube behavior under deformation.
Flattening checks
Flattening tests help evaluate tube performance and identify visible weld-related issues.
Additional water checks
Water-tank checks are carried out selectively. Their test method and purpose should be confirmed for each order.
ISO-certified operations.
Our management systems support quality, environmental responsibility and occupational health and safety.
Quality management
Management systems for consistent processes and improvement.
Environmental management
Structured management of environmental responsibilities.
Occupational health & safety
Structured management of workplace health and safety.
ISO management-system certification is not certification of individual tube grades or product standards. Request current certificate copies and scopes when needed.
Need additional inspection or test documentation?
Send the target standard, acceptance criteria and document requirements with your RFQ for review.