Paul Industries fabricates and installs sanitary and high-purity process piping across South Carolina. On projects for European-owned plants, the question that stops a handover is rarely the welding. It is the paperwork attached to the metal. European quality organizations ask for material test certificates to EN 10204, and they ask for a specific type. Supplying the wrong type means the tubing is fine, the welds are fine, and the traceability chain is broken anyway.
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The birth certificate of the metal
A material test certificate records the chemical and mechanical properties of a material, and EN 10204 is the European standard governing what those certificates must contain and who is entitled to sign them. The 2004 revision reduced the types to four, and the difference between them is not formatting. It is whether the numbers on the page describe the metal on your dock.
| Type | Results | Endorsed by |
|---|---|---|
| 2.1 | A declaration of compliance with the order, no test results | The manufacturer |
| 2.2 | Test results, but non-specific to your batch | The manufacturer |
| 3.1 | Results from your actual heat or batch | The maker’s QA, independent of production |
| 3.2 | Results from your actual heat or batch | Also countersigned by an independent party |
The line that matters is between 2.2 and 3.1. A 2.2 report contains real test results, which is why it looks reassuring, but those results may come from a reference heat rather than from the material supplied. For decorative or structural work of low consequence that is acceptable. For pressure piping, for regulated process systems, for anything where a deviation investigation might one day need to establish what the metal actually was, it is not, because it breaks the traceability chain at the first link.
Type 3.1 is the working standard for stainless process piping. The results are from the heat supplied and they are endorsed by a QA function within the manufacturer that is required to be independent of the manufacturing process. Type 3.2 adds a countersignature from a third-party inspector or the purchaser’s representative, which is specified where the consequence of a material error is severe enough to justify the cost and the lead time.
Why this bites harder in South Carolina than elsewhere
South Carolina’s manufacturing base carries an unusually high proportion of European ownership. The state’s Department of Commerce reports more than 160 German companies employing nearly 27,000 people, with German capital investment exceeding $4.1 billion since 2011, and that is one country among several. A great many plants here take their quality expectations from a parent organization that has always specified to EN 10204.
An American fabricator working mostly for American owners will not necessarily ask about it, because the domestic convention is a mill test report which is substantively similar to a 3.1 but is not labelled or structured as one. The mismatch surfaces at handover, when the receiving quality organization looks for a type designation that is not on the document, and the resolution at that point is slow: the tubing is installed, the heat numbers have to be traced backwards through the supply chain, and in the worst case the certificates cannot be reconstructed to the required type at all.
The fix is entirely procedural and costs almost nothing if it happens at the right moment. Establish at the order stage which certificate type the receiving organization requires, specify it to the supplier in writing, and check on receipt that what arrived carries the type designation rather than assuming it does.
The rest of the documentation package, and where it is kept
Material certification is one strand of a records package that has to survive the project and then survive the plant.
Weld records. Every weld identified, mapped to a drawing, with the welder or operator, the procedure, the machine, the parameters and the acceptance result. Coupons retained per the project convention. Orbital welding to AWS D18.1, with visual acceptance per AWS D18.2 for tube welds where that applies.
Procedure and performance qualification. ASME Section IX documentation for the procedures used and for the personnel using them, current and traceable.
Surface and passivation records. Surface finish specified and verified per ASME BPE, cleaning per ASTM A380, passivation per ASTM A967, with the method and the verification recorded rather than asserted.
Slope and drainability. Verified as built, not as designed. A line that was designed to drain and does not is a finding, and it is far cheaper to discover before insulation than after.
Pressure testing and code compliance. ASME B31.3 for process piping, with the fluid service category determined and documented, and B31.5 where refrigeration piping is in scope.
| Load | Per 40-hour week | Per year |
|---|---|---|
| 10 kW | $27.36 | $1,423 |
| 25 kW | $68.40 | $3,557 |
| 50 kW | $136.80 | $7,114 |
Energy is a small line on a piping project and we include it for completeness rather than as a decision input. South Carolina’s 6.84 cents per kilowatt-hour sits below the 8.13 cent national average (EIA, 2024). The costs that actually move on these projects are rework and schedule, and both are driven by documentation gaps far more often than by welding quality.
Standards referenced: ASME BPE · ASME B31.3 · EIA electricity price data · ASTM A967 · ASTM A380 · ASME Boiler and Pressure Vessel Code · AWS D18.2
Frequently asked questions
Do you fabricate sanitary process piping in South Carolina?
Yes, across Greenville, Charleston, Columbia, Spartanburg and statewide: shop and field orbital welding, ASME BPE installations, slope and drainability verification, pressure testing, passivation and the full documentation package including material certification to the type your quality organization requires.
What is EN 10204?
The European standard governing material test certificates, revised in 2004 to four types: 2.1, 2.2, 3.1 and 3.2. It defines what each certificate must contain and who is entitled to endorse it, which is the part that decides whether the numbers on the page describe the metal you actually received.
What is wrong with a 2.2 certificate?
Its results are non-specific. They may come from a reference heat rather than the material supplied, which is why it can look reassuring while breaking traceability at the first link. For pressure piping and regulated process systems, where a deviation investigation may need to establish what the metal was, that is not acceptable.
Should we specify 3.1 or 3.2?
Type 3.1 is the working standard for stainless process piping: results from your heat, endorsed by a QA function independent of production. Type 3.2 adds a countersignature from a third-party inspector or your representative, and is worth its cost and lead time where a material error would have severe consequences.
Is a US mill test report the same as a 3.1?
Substantively it is usually close, but it is not labelled or structured as one, and that is where the problem starts. A receiving quality organization looking for an EN 10204 type designation will not find it, and reconstructing certificates to the required type after installation is slow and sometimes impossible.
When should this be settled?
At the order stage. Establish which certificate type the receiving organization requires, specify it to the supplier in writing, and verify on receipt that the documents carry the type designation rather than assuming. Handled then it costs almost nothing; handled at handover it costs schedule.
Why does this come up so often in South Carolina?
Because so many plants here take their quality expectations from a European parent. The South Carolina Department of Commerce reports over 160 German companies employing nearly 27,000 people in the state, with more than $4.1 billion of German investment since 2011, and Germany is one country among several with a substantial presence.
What else is in the documentation package?
Weld records mapping every weld to a drawing with welder, procedure, parameters and acceptance; ASME Section IX procedure and performance qualification; surface finish and passivation records per ASME BPE, ASTM A380 and ASTM A967; as-built slope verification; and pressure testing with the ASME B31.3 fluid service category documented.
Do you verify slope as built?
Yes, and it matters more than it sounds. A line designed to drain that does not drain is a finding, and correcting it before insulation goes on is a fraction of the cost of correcting it afterwards. Designed slope and achieved slope are different numbers often enough to be worth measuring.
How do I get a quote for South Carolina piping work?
Use the form on this page or call 201-450-8280. Useful inputs are line sizes and materials, the surface finish required, approximate weld count, which ASME B31.3 fluid service category applies, and which EN 10204 certificate type your quality organization expects.
How does the European Pressure Equipment Directive bear on US-built piping?
Where a European parent applies its own standards or where equipment will be relocated, the directive's conformity assessment and documentation expectations can be requested, even though the installation is in the United States. Whether it applies is settled with the parent before design.
Are EN and ASTM stainless grades interchangeable?
Grades such as 1.4404 and 316L are close but not identical in composition limits, so a specification that names the EN grade is met by material certified to it or by material shown to meet both. The equivalence is documented rather than assumed.
What weld examination percentage does a European reviewer expect?
Often full borescope inspection of product-contact welds and a defined radiographic or dye penetrant sample, agreed at the start, rather than the minimum the American code allows. The percentage is written into the specification so that the bid and the package match.
How is the documentation package formatted for a European parent?
In the parent's document structure and language where required, with an index that cross-references each record to the requirement it satisfies, and in a format the parent's quality system can archive. A complete package in the wrong structure is returned for rework.
How is traceability maintained from certificate to installed tube?
By heat number marking on the tube, by recording the heat number of every spool and every weld on the weld map, and by keeping the certificates with the installation records. The chain has to be unbroken from mill to weld.
How is pressure testing documented for European review?
With the test method, pressure, duration, medium, instrument calibration and witnessing recorded on a form that identifies the tested system and its boundaries, because European reviewers expect the test record to stand alone. A signature on a drawing is not a test record.
How are as-built drawings controlled?
With isometrics and process diagrams revised to match the installed system, issued under the site's document control with revision history, and with redlines from the field incorporated before turnover. The as-built is the drawing the qualification refers to, and a European reviewer checks that it matches the plant.
What is a Qualified Person's role in reviewing piping?
In the European system the Qualified Person certifies batch release and relies on the facility's qualification, so the piping documentation has to support that certification. The QP's expectations shape the package's completeness.
How do you handle a parent's own piping standard?
By reviewing it against ASME BPE and B31.3 at the start, identifying where it adds requirements, and building those into the specification and the documentation. Differences discovered at handover are the expensive kind.
What about fittings and valves under EN 10204?
Fittings, valves and instruments also carry material certificates, and the specification states the type for each. Fittings are where 2.2 certificates slip in unnoticed.
How does orbital welding documentation meet European expectations?
Weld logs with parameters for every weld, borescope inspection records, coupon records and welder identification, referenced to the weld map. European reviewers expect this level of record and are unforgiving of gaps.
Does the aerospace and automotive base here use EN 10204 as well?
Yes. European-owned plants in those sectors ask for the same certificate types on their process and utility piping, and South Carolina fabricators serving them have the same specification questions.
How is passivation documented for a European reviewer?
With the procedure, the chemistry, the parameters, the verification results and the sign-off, referenced to the system, in the same form as the rest of the package. The record is what the reviewer wants; the treatment itself is standard.
What about the FDA side of a dual-regime site?
FDA expects the same traceability and documentation in substance, and a package built to European expectations satisfies FDA. Building to the stricter reader covers both.
What is the commonest documentation failure on South Carolina piping projects?
Tube and fittings bought with 2.2 certificates because nobody specified the type, discovered at handover by a European reviewer who will not accept them. The specification at purchase prevents it.
The Qualified Person, and the document set nobody budgets for
There is one European requirement with no American counterpart at all, and it reshapes what a piping records package has to look like. In the European Union every batch released to market must be certified by a Qualified Person, typically a pharmacist or scientist with defined qualifications and personal legal responsibility for the certification. The FDA has no equivalent role.
That single structural difference changes the character of the documentation. An FDA investigator examines a quality system and samples its records to judge whether it is in control. A Qualified Person has to personally attest, batch by batch, that manufacture complied, and personal accountability produces a demand for records that are complete and self-evident rather than merely retrievable.
For process piping the practical consequences are narrow but real. Equipment qualification records supporting batches the QP certifies need to be complete and current rather than substantially complete. Changes to a system, including ones an American site would treat as like-for-like maintenance, need a change record the QP can follow. And the traceability chain from installed component back to material certificate has to be walkable by someone who was not on the project, which is exactly why the EN 10204 type designation matters as a label and not only as a set of test results.
None of this makes the piping different. It makes the handover package different, and it is much cheaper to assemble it in the right shape during the project than to reconstruct it afterwards for a person who is legally exposed by signing.
Piping a South Carolina plant with European quality expectations?
Tell us which EN 10204 type your quality organization requires and we will specify it at the order stage rather than discover it at handover. Call 201-450-8280 or use the form below.