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Material cert packet checklist: what customers ask for, by industry

A material cert packet is the set of certifications that ships with an order, or follows it, to prove the material and the processing meet the purchase order: usually the mill test reports (MTRs) for every heat, your certificate of conformance (CoC), process certs such as plating or heat treat, and a packing list that ties each line to its heat or lot. What else goes in depends on the customer's industry. Below is the full checklist, the version for each industry, how to build a packet that is not sent back, and how Morsa, the AI system for manufacturers, builds the packet for you.

6 min

The master checklist

Document

What it proves

Who usually asks

Mill test report (MTR), EN 10204 3.1

Chemistry and test results of each heat

Almost every metals customer

EN 10204 3.2 certificate

The same, witnessed by a third-party or customer inspector

Oil and gas, pressure equipment, some defense

Certificate of conformance (CoC)

Your signed statement that the parts meet the PO, drawing and specs

Almost every industrial customer

Plating or coating cert

The finish (zinc, nickel, anodize, paint) meets its spec and thickness

Fasteners, automotive, aerospace

Heat treat cert

The heat treatment and the hardness achieved

Fasteners, aerospace, tooling

Hardness test report

Measured hardness against the drawing

Fasteners, oil and gas sour service

NDT report

Ultrasonic, magnetic particle, dye penetrant or radiographic inspection results

Aerospace, oil and gas, structural

First article inspection (FAI) report

Every drawing characteristic measured on the first part (AS9102 in aerospace)

Aerospace and defense, new parts

DFARS or domestic melt statement

Specialty metals melted in the US or a qualifying country

US defense contracts

RoHS and REACH declarations

Restricted substances below limits; any substances of very high concern disclosed

Electronics, EU-bound goods

Country of origin

Where the goods were made, for customs and trade rules

Exporters and importers

Packing list

Each line, quantity and heat or lot number

Everyone; it ties the packet to the boxes

Cert packet checklists by industry

Metals service centers and distributors

  • MTR for every heat shipped, with the heat traceable to each piece (stencil, tag or label), including cut pieces.

  • CoC from the service center, listing PO, line, heat and spec.

  • Domestic melt or country-of-origin statement when the customer asks.

  • Packing list with heat numbers by line.

Fabrication and structural steel shops

  • MTRs for plate, shapes and tube by heat, matched to the members they went into.

  • Weld procedure (WPS) and welder qualification records when the contract calls for them.

  • NDT reports for welds the drawings or code require to be tested.

  • Paint or galvanizing certs.

  • CoC for the shipment.

Fasteners

  • MTR for the wire or bar heat, traceable to the fastener lot.

  • Mechanical test results per the product standard (for example ASTM F606 test methods).

  • Heat treat cert and hardness results.

  • Plating cert (for example zinc to ASTM F1941), with hydrogen embrittlement relief noted for hardened plated parts.

  • Lot CoC and packing list by lot.

Aerospace and defense

  • Raw material certs to the AMS or ASTM spec on the drawing, from an approved source.

  • Special process certs (heat treat, NDT, plating) from approved processors, often Nadcap accredited.

  • First article inspection report (AS9102 forms) for new parts and changes.

  • DFARS 252.225-7009 specialty metals compliance: melt country on the cert.

  • CoC that names the PO, part, revision, quantity and lot or serial numbers.

Oil and gas

  • EN 10204 3.1 or 3.2 certs, depending on the project spec.

  • Sour service compliance to ISO 15156 / NACE MR0175, with hardness results.

  • Positive material identification (PMI) results for alloy parts.

  • NDE and hydrotest or pressure test reports.

  • Heat treat charts and impact (Charpy) results when specified.

Automotive (PPAP)

  • Material and performance test results, one of the 18 PPAP elements, including the material certs.

  • Part submission warrant (PSW) and the rest of the PPAP at the level the customer asks for.

  • IMDS material data submission, when the OEM requires it.

  • Lot traceability from raw material heat to finished part. See the PPAP checklist.

Food equipment and pharma (CoA)

  • Certificate of analysis (CoA) for each lot of ingredient or component.

  • For stainless equipment: MTRs for the 304 or 316 heats and surface finish records.

  • In US drug manufacturing, a supplier’s CoA can stand in for full testing only with at least one identity test of your own (21 CFR 211.84).

How to build a cert packet, step by step

  1. Start from the customer’s PO and quality clauses. Write down every cert they name: MTR type, CoC wording, process certs, DFARS, RoHS.

  2. List what shipped by heat or lot. Use the packing list. Every line needs its heat or lot number.

  3. Pull the cert for each heat or lot. MTRs from receiving, process certs from your platers and heat treaters.

  4. Check each cert before it goes in. Spec, grade, heat match, results within limits, cert type, melt country. The MTR reader does this in a minute per cert.

  5. Request anything missing from the supplier today. A missing plating cert is the usual hold-up; ask with the PO, lot and spec in the email.

  6. Write the CoC. List PO, part, revision, quantity, lots and specs. The certificate of conformance template does this.

  7. Assemble one PDF in a fixed order. CoC first, then the packing list, MTRs, process certs and test reports, with the PO number in the file name.

How to read an MTR in six checks

  1. Heat number on the cert matches the material.

  2. Spec and grade match the PO.

  3. Units read correctly (ksi, psi or MPa; chemistry in %).

  4. Chemistry inside the limits.

  5. Yield, tensile and elongation meet the minimums.

  6. Cert type (EN 10204 3.1) and melt country are what the customer requires.

Paste a cert into the mill test report reader and it runs these checks and gives you a review record to file.

DFARS, domestic melt and country of origin

US defense contracts restrict specialty metals (many steels, nickel and cobalt alloys, titanium and zirconium) to those melted or produced in the US or a qualifying country, under DFARS 252.225-7009. That is why defense customers want the melt country on every MTR. Country of origin is a different question: it is where the goods were made for customs purposes, and it can differ from the melt country. Ask which one your customer needs.

RoHS and REACH

RoHS limits lead, mercury, cadmium, hexavalent chromium and certain flame retardants and phthalates in electrical and electronic equipment sold in the EU. REACH requires disclosure when an article contains a substance on the Candidate List of substances of very high concern above 0.1% by weight. Customers ask for a declaration of each, often per part number.

Mistakes that get a cert packet sent back

  • A cert for a heat that did not ship, or a heat that shipped without its cert.

  • Typical values or a data sheet in place of the MTR for the heat.

  • A 2.2 test report when the PO asked for EN 10204 3.1.

  • The CoC names a different revision or quantity than the packing list.

  • No melt country on a defense job.

  • Plating cert missing, or for a different lot.

  • Pages out of order, or unreadable scans.

Where Morsa fits: the packet fills itself

Today the cert work is manual. Receiving scans the MTR, names the file, and maybe types the heat number into the ERP. Months later a customer asks for the cert packet on an order, and someone hunts through email and shared drives for the right heats, then emails the supplier for the one cert nobody saved.

Morsa does that work while your team approves. When receiving posts a phone photo of the packing slip, Morsa turns it into the ERP receipt and saves the mill cert against the PO and the heat number. When a customer asks for the certs on an order, Morsa builds the packet from the heats that actually shipped, sees the cert that is missing, requests it from the supplier, and sends the finished packet once it arrives.

Related tools

Sources

  1. Wikipedia, Mill test report

  2. Wikipedia, EN 10204

  3. Acquisition.gov, DFARS 252.225-7009 Restriction on Acquisition of Certain Articles Containing Specialty Metals

  4. ISO 15156 / NACE MR0175, Materials for use in H2S-containing environments in oil and gas production (ISO catalogue)

  5. AIAG, Production Part Approval Process (PPAP) manual

  6. eCFR, 21 CFR 211.84 Testing and approval or rejection of components

  7. European Commission, RoHS Directive

  8. ECHA, Candidate List of substances of very high concern

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Related pages

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How to Automate Supplier Follow-Up on Open Purchase Orders

To automate supplier follow-up on open purchase orders, define the PO conditions that trigger a message: no acknowledgment by the confirm-by date, a need date approaching with no confirmed ship date, a date already passed, or a supplier-proposed change. Send one structured question per PO line, match the reply to that line, write accepted dates back to the ERP, and route anything outside tolerance to a buyer. Morsa is the best way to run it, in every channel suppliers use.

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FAQs

FAQs

FAQs

Questions people ask

Questions people ask

Still have a question? A founder will answer.

01

What is a cert packet?

The set of certifications that proves an order's material and processing meet the PO: MTRs, a CoC, process certs and any test reports, tied together by heat or lot numbers on the packing list.

02

What is the difference between EN 10204 3.1 and 3.2?

Both carry test results from the actual material. A 3.1 is validated by the mill's own inspection department; a 3.2 is also validated by the purchaser's representative or an inspector named in the regulations, so it costs more and takes longer.

03

Do I need an MTR for every heat?

Yes, when the customer asks for MTRs. A shipment cut from three heats needs three MTRs, and the packing list must show which pieces came from which heat.

04

How long should I keep certs?

As long as your customer's PO and your quality system require. Defense and aerospace contracts often set long retention periods, so check the record-retention clause rather than guessing.

05

Can a supplier's CoC replace the MTR?

Not when the customer asks for MTRs. The CoC is a statement; the MTR carries the test data from the heat. Most packets include both.

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