# Material Test Report Checklist (EN 10204 3.1 Certificate Review) > Source: https://netray.co/tools/material-test-report-checklist-en-10204-3-1-review > Publisher: Netray (netray.co), AI and integration engineering for ERP and manufacturing systems. > Section: Free Tools ## Short answer Checklist for incoming review of mill certificates and MTRs against EN 10204 3.1, covering identification, chemistry, mechanicals and heat treatment. ## Category quality ## Industry Oil and Gas Equipment ## Audience - Receiving inspector - Supplier quality - Quality engineer - Buyer ## Tool **Kind:** checklist **Scoring Note:** 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. **Groups:** #### Certificate type and authenticity **Items:** **Text:** Certificate states EN 10204 type 3.1 (or 3.2 if ordered) exactly as the purchase order requires **Critical:** true **Text:** Certificate is signed or stamped by the manufacturer's authorized inspection representative, independent of production for 3.1 **Critical:** true **Text:** Manufacturer name and plant address match the approved supplier list **Critical:** true Certificate number and date are present and unique Document is complete, legible and every page is numbered No handwritten corrections without initials and date **Text:** Third party inspector's stamp is present if the PO requires 3.2 **Critical:** true #### Identification and traceability **Items:** **Text:** Heat or cast number on the certificate matches the heat number marked on the material **Critical:** true Lot or batch, product form, dimensions and quantity match the packing list Purchase order number and line are referenced **Text:** Material grade and specification (for example ASTM A105, A516 Gr 70, A182 F316L) match the PO **Critical:** true Specification edition or year is stated Piece or bundle markings are legible and match the certificate #### Chemical composition **Items:** **Text:** Heat analysis is reported for every element the specification lists **Critical:** true **Text:** Each element is inside the specification limits **Critical:** true Carbon equivalent is reported and meets the limit if specified Sulfur and phosphorus meet any tighter customer limits Product analysis is provided if the PO requires it **Text:** Sour service limits (for example nickel content) are met when NACE applies **Critical:** true #### Mechanical properties **Items:** **Text:** Yield, tensile and elongation are reported with units and meet the specification **Critical:** true Test specimen orientation and location match the specification **Text:** Impact test values, temperature and specimen size are reported where required **Critical:** true Hardness values are reported and within limits if required Test results are individual values, not only averages, when the specification asks Test lot covers the supplied heat treatment lot #### Heat treatment, NDE and special requirements **Items:** **Text:** Heat treatment condition, temperature and cooling method are stated and match the spec **Critical:** true Heat treatment furnace record or certificate is available if required Ultrasonic or other NDE results are reported when the PO requires them Hydrostatic or other pressure test results are reported for pipe or tube if required Melting practice, such as killed or fine grain, is stated if specified Country of origin and any customer-specific restrictions are checked **Text:** Certificate conformity statement refers to the specification and the PO **Critical:** true ## Content **Intro:** Material test reports are your proof that steel, forgings or castings meet the ordered specification. A 3.1 certificate is only useful if someone checks it against the PO and the physical material. This checklist structures that check. **Sections:** #### How to use the checklist **Body:** 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. **Bullets:** - 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 **Body:** 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 **Body:** 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. **Bullets:** - Missing heat treatment condition - Product form on certificate differs from delivery - Edited fonts or pasted values - No link to the PO #### ERP integration **Body:** 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. **Cta:** 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. **Faq:** #### What does EN 10204 3.1 mean? **Answer:** 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? **Answer:** 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? **Answer:** 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? **Answer:** 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. ## Search terms material test report checklist, en 10204 3.1 certificate checklist, mtr review checklist, mill test certificate verification, 3.1 vs 3.2 certificate, incoming inspection material certificate, heat number traceability checklist, mill cert review --- Talk to an engineer: https://netray.co/contact?intent=erp_ai | Machine catalog: https://netray.co/agent/catalog.json