Material Test Report Checklist, EN 10204 3.1

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Certificate type and authenticity

Certificate states EN 10204 type 3.1 (or 3.2 if ordered) exactly as the purchase order requiresCRITICALCertificate is signed or stamped by the manufacturer's authorized inspection representative, independent of production for 3.1CRITICALManufacturer name and plant address match the approved supplier listCRITICALCertificate number and date are present and uniqueDocument is complete, legible and every page is numberedNo handwritten corrections without initials and dateThird party inspector's stamp is present if the PO requires 3.2CRITICAL

Identification and traceability

Heat or cast number on the certificate matches the heat number marked on the materialCRITICALLot or batch, product form, dimensions and quantity match the packing listPurchase order number and line are referencedMaterial grade and specification (for example ASTM A105, A516 Gr 70, A182 F316L) match the POCRITICALSpecification edition or year is statedPiece or bundle markings are legible and match the certificate

Chemical composition

Heat analysis is reported for every element the specification listsCRITICALEach element is inside the specification limitsCRITICALCarbon equivalent is reported and meets the limit if specifiedSulfur and phosphorus meet any tighter customer limitsProduct analysis is provided if the PO requires itSour service limits (for example nickel content) are met when NACE appliesCRITICAL

Mechanical properties

Yield, tensile and elongation are reported with units and meet the specificationCRITICALTest specimen orientation and location match the specificationImpact test values, temperature and specimen size are reported where requiredCRITICALHardness values are reported and within limits if requiredTest results are individual values, not only averages, when the specification asksTest lot covers the supplied heat treatment lot

Heat treatment, NDE and special requirements

Heat treatment condition, temperature and cooling method are stated and match the specCRITICALHeat treatment furnace record or certificate is available if requiredUltrasonic or other NDE results are reported when the PO requires themHydrostatic or other pressure test results are reported for pipe or tube if requiredMelting practice, such as killed or fine grain, is stated if specifiedCountry of origin and any customer-specific restrictions are checkedCertificate conformity statement refers to the specification and the POCRITICAL

Reject or hold the material if any critical item fails. Record the finding on the receiving inspection report and raise a supplier corrective action request.

Heat traceability in your ERP

Optional: ideas for linking heat numbers and certificates to batches.

Optional. The tool and every export work without this. No spam.

How to use the checklist

Pull the certificate, the PO line and the physical material. Work down each group, tick what matches and mark the critical items that fail. Do this at receiving, before material is released to stock. Export the completed list to PDF or Excel and attach it to the receiving record for the heat number. Keep a copy with the traveler so the final data book can reference the certificate.

Verify the heat number on the material, not only the paper
Check the spec edition against the PO
Do not accept a photocopy of a copy

3.1 versus 3.2 in EN 10204

EN 10204 defines inspection documents. Type 3.1 is issued by the manufacturer and validated by an authorized inspection representative independent of the manufacturing department. Type 3.2 is validated by both the manufacturer's representative and either the purchaser's authorized representative or an inspector named in the order. Type 2.2 is only a statement of compliance, and 2.1 is a declaration. Many oil and gas customers require 3.1 as a minimum.

Typical red flags

Watch for heat numbers that do not match the stamped material, chemistry that sits suspiciously at spec limits, missing impact tests for low temperature service, mixed units, and certificates whose layout differs from earlier ones from the same mill. If you doubt the document, request verification from the mill or run positive material identification on the piece.

Missing heat treatment condition
Product form on certificate differs from delivery
Edited fonts or pasted values
No link to the PO

ERP integration

Store heat number and certificate as a batch record in your ERP (batch characteristics in SAP, lot in Oracle, lot or serial in Infor and Epicor). Block the batch until receiving inspection has recorded a pass. That makes traceability from finished vessel back to the heat a query, not a hunt through binders.

Frequently Asked Questions

What does EN 10204 3.1 mean?

It is a certificate issued by the manufacturer with test results from the delivered lot, validated by an authorized representative independent of the production department. It states the product complies with the order.

What is the difference between 3.1 and 3.2?

A 3.2 certificate is also validated by an independent party, either the purchaser's representative or an inspector named in the order, in addition to the manufacturer's representative. A 3.1 is manufacturer validated only.

Should I check chemistry myself?

At least compare the reported values to the specification limits for every listed element. For critical or sour service material, add positive material identification on the received piece.

How long should MTRs be retained?

Retention is set by your customer contract, code and quality system. Pressure equipment often requires keeping them with the data book for the life of the unit or many years; confirm your own requirement.

If you scan MTRs into folders today, Netray can discuss extracting heat numbers and chemistry into your ERP for review. The checklist itself needs no sign-up.

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Material Test Report Checklist (EN 10204 3.1 Certificate Review)