Batch Traceability for Tendering: What a Utility Will Ask For

A consumable tender from a utility reads differently from a fabricator's enquiry, and the difference is not in the product specification. It is in the paperwork. The buyer is not only asking whether the electrodes or the wire will do the job. They are asking whether, years from now, they will still be able to prove which material went into which weld.

That question is answered before the tender is submitted, not after it is won. The sections below set out what the requests actually consist of, where they most often break down, and what is worth settling in advance.

1. Why the question is asked at all

A fabricator's interest in traceability ends when the job is handed over. An asset owner's interest begins there. The consumable becomes part of a structure, a pressure part or a support that will be inspected, repaired and eventually decommissioned, and each of those stages can ask the same question again.

That is why the documentation request in a utility tender is not a formality. It is a request for a capability: the ability to answer the same question again in five or fifteen years, without the person who handled the delivery being available to explain it.

2. The document levels, and which one the tender names

Inspection documents for metallic products are classified by EN 10204. The four levels are worth knowing by name, because a tender will specify one of them, and the level changes what a supplier has to be able to produce.

Type 2.1 is a declaration of compliance with the order: the manufacturer states that the material meets the order, with no test results. Type 2.2 is a test report: the same statement, with results from non-specific inspection. Type 3.1 is an inspection certificate: a statement of compliance with results from specific inspection, validated by the manufacturer's inspection representative, who is independent of the manufacturing department. Type 3.2 is an inspection certificate at that same level, additionally endorsed by the purchaser's authorised inspection representative or by the inspector designated under official regulations.

The step that matters commercially is the one between 2.2 and 3.1. Non-specific inspection is not the same as specific inspection: 3.1 carries results from the products actually supplied, on the test unit that the product specification defines. A supplier who can issue 2.2 as a routine document but has to make arrangements for 3.1 needs to know that before the price is fixed, not after the order is placed.

3. The numbers have to line up three ways

A traceability chain has three links, and a tender will test all three: the heat or batch number on the inspection document, the number printed on the boxes or the spool label, and the number recorded on the delivery note or packing list.

Put the three side by side before the documents are submitted. If the inspection document quotes a heat number that does not appear on any package in the delivery, the chain is broken: the document describes the right product but not this material. If it was issued against a product family or a general specification, the batch that actually shipped is not identified at all.

Neither failure is visible from the document alone. Both are obvious the moment someone compares it with the labels, which is exactly what the buyer's inspector will do.

4. Who issued it, and who signed it

The name on the inspection document matters as much as its contents. If the tender names a manufacturer, the document has to be issued in that manufacturer's name. A document issued by a trading company is not the same document, however accurate its content.

The signature matters for the same reason. On a 3.1 certificate the validating signature has to come from an inspection function that is independent of the manufacturing department. That independence is part of what the certificate level means; it is not an administrative detail that can be waived because the plant is small.

5. Retention, and the test that answers it

The requirement that is easiest to overlook is retention. An asset owner can come back for the documentation during a shutdown, an inspection or a failure investigation, long after the project file has been closed on both sides.

There is a simple way to find out whether the capability exists. Pick a delivery from three years ago and try to re-issue its full document set. If the answer depends on finding a person rather than opening a file, the capability is not really there. Filing by delivery note is the usual root cause: the link to the heat number is lost as soon as the delivery note is filed by date and the certificate is filed by supplier.

6. What to settle before quoting, not after winning

For each product family you intend to offer, the following is worth having confirmed in writing before the bid goes in: the standard the product is manufactured and tested to; the inspection document level issued as standard, and the level that has to be arranged in advance; the lead time for the higher level; where the heat or batch number appears on the product, on the carton and on the delivery note; and the retention period you are able to commit to, together with the process for re-issuing a document set.

None of this is difficult to produce. It is difficult to assemble under tender deadlines, and that is usually the whole difference between a bid that clears clarification and one that does not.

If you are preparing a bid and want the certificate package, the inspection document level and the traceability route for your consumables confirmed in writing before you submit, or if you are setting the documentation requirements for a project and want to know what can be committed to, contact us at info@steeltoolschina.com.