Material Certificates and
Import Documents for China-Made Parts
What a mill test certificate really is, which documents you actually need to import machined metal parts into the EU and US, and exactly what Davantech provides.
What a Mill Test Certificate Is
A Mill Test Certificate (MTC), also called a Material Test Report (MTR), is issued by the material producer — the mill. It certifies the chemical composition and mechanical properties of a specific heat or batch of material and identifies the heat number and country of origin. In EN 10204 terms this is a type 3.1 inspection certificate: results from specific testing on the delivered material, validated by a department of the mill independent of manufacturing.
The point that is widely misunderstood: a machine shop does not issue a mill test certificate. It can only pass through the certificate its material supplier provides. The certificate follows the metal, not the machining.
The EN 10204 Document Types
“Material certificate” is not one thing. EN 10204 defines four document types — knowing which you actually need avoids a lot of confusion.
| Type | Name | Issued by | Test results? |
|---|---|---|---|
| 2.1 | Declaration of compliance with the order | Supplier / manufacturer | No — a signed statement of conformity |
| 2.2 | Test report | Supplier / manufacturer | Yes — from non-specific (general) testing |
| 3.1 | Inspection certificate (the “MTC”) | The mill (independent dept.) | Yes — specific testing of the delivered batch |
| 3.2 | Inspection certificate, validated | Mill + independent inspector | Yes — countersigned by a third party |
When people say “MTC” they almost always mean a 3.1. A 2.1 declaration of conformity is a different, lighter document: the supplier declares the material delivered conforms to the specified grade, without attaching batch test data.
Why a Genuine 3.1 Is Often Not Available From Chinese Stock
Precision CNC shops buy bar, plate, and billet from stock distributors, not directly from the mills. In that supply chain a genuine, verifiable 3.1 certificate traceable to the original heat is inconsistent — sometimes it exists, sometimes it does not, and sometimes the paperwork cannot be independently confirmed. A responsible factory will not warrant a mill certificate it did not produce and cannot verify. So we are straight about it: Davantech does not provide EN 10204 3.1 mill test certificates. What we provide instead gives you real, defensible material assurance — set out below.
The Documents Davantech Actually Supplies
For the large majority of commercial and industrial parts, this package is exactly what an importer and a quality system need.
- ✓
Material declaration / Certificate of Conformance (EN 10204 2.1)A signed statement that the material supplied conforms to the grade specified on your order.
- ✓
Independent XRF or laboratory composition testing, on requestA third-party check of the actual alloy chemistry against your specification — objective verification that the metal is what it should be.
- ✓
Inspection documentationFirst-article inspection, CMM data, and dimensional reports against your drawing, with a Certificate of Conformance to the drawing.
- ✓
Certificate of Origin (China)Confirming the parts were manufactured (substantially transformed) in China. A CCPIT- or chamber-certified version is available on request when you need stamped, official proof.
- ✓
Non-Russian origin declarationIncluding EU Article 3g wording for iron and steel (explained below).
- ✓
RoHS and REACH / SVHC declarations, on requestFor EU and electronics programmes, and for coated or finished parts.
Not provided: EN 10204 3.1 mill test certificates. If your programme strictly mandates a genuine 3.1, see the note further down — we’ll tell you honestly at the quote stage rather than promise a document we can’t supply.
The Non-Russian Steel Declaration (Article 3g)
Since 30 September 2023, EU Regulation 833/2014 (as amended by Regulation (EU) 2023/1214, Annex XVII) prohibits importing iron and steel products processed in a third country if they incorporate iron or steel inputs of Russian origin, and importers must be able to prove the inputs are not Russian. Importantly, a mill test certificate is not required for this. The European Commission’s guidance states that origin “may be established through other means, such as a statement or declaration by the exporter or manufacturer confirming that, after exercising due diligence, the imported product does not contain any Russian steel or iron.” Davantech issues exactly that declaration for iron and steel shipments — referencing the air waybill and confirming the goods are not subject to the Article 3g(1)(d) prohibitions.
Iron & Steel, Aluminium, and the US — Three Different Rulebooks
One declaration does not cover everything. The requirement depends on both the material and the destination.
- Article 3g requires proof inputs are not Russian
- A manufacturer’s declaration is accepted — no MTC needed
- Davantech issues this declaration per shipment
- No Article 3g-style input declaration for aluminium
- EU bans specific Russian commodities (wire, foil, tube, pipe) — not machined parts
- Part origin is China by substantial transformation; our Certificate of Origin states it
- Separate regime from the EU
- Certificate of Origin + non-Russian declaration support your filing
- Country of smelt/cast is the importer’s field — confirm with your broker
This page is general information, not legal or customs advice. The importer of record is responsible for confirming documentation requirements with their customs authority or broker.
Matching the Document to Your Requirement
Work out what you actually need, then request it with your order.
| Your requirement | The document |
|---|---|
| Confirm the grade supplied is correct | Material declaration / Certificate of Conformance (EN 10204 2.1) |
| Independently verify the alloy chemistry | Third-party XRF or laboratory composition test |
| Confirm the parts match the drawing | First-article inspection + CMM / dimensional report |
| Prove the parts were made in China | Certificate of Origin (self-issued or CCPIT-certified) |
| Import iron / steel parts into the EU | Article 3g non-Russian-origin declaration |
| EU / electronics environmental compliance | RoHS and REACH / SVHC declarations |
| Regulatory audit mandates mill traceability | EN 10204 3.1 — not available; discuss at RFQ |
If Your Programme Mandates a Genuine Mill 3.1
Some regulated programmes require a traceable mill 3.1 certificate as a condition of qualification. We are honest about this: we cannot supply one. If a genuine 3.1 is a hard requirement for your part, tell us at the RFQ stage and we will say so plainly, so you can plan accordingly — rather than accept the order and disappoint you at incoming inspection. For everything short of that, the material declaration plus independent XRF testing described above is the route we recommend, and it satisfies the large majority of commercial and industrial quality systems.
Material Documentation Questions
Do you provide mill test certificates (EN 10204 3.1)?
What documents do you provide so I can import machined parts from China?
Do I need a mill test certificate to import steel parts into the EU?
Can you certify that the aluminium is not of Russian origin?
Can you provide a Certificate of Origin?
Do you provide RoHS and REACH declarations?
Obtaining Mill Test Certificates (MTC) for Materials Used in Parts Manufacturing in China is a critical step for manufacturers in China who produce parts for various industries. MTCs, also known as Material Test Reports (MTR), provide essential information about the material’s properties and compliance with required standards. These certificates ensure that the materials used meet the necessary quality and safety criteria, which is vital for industries such as automotive, aerospace, construction, and others. Understanding the process of obtaining MTCs in China is crucial for manufacturers aiming to maintain high standards and ensure the reliability of their products.
Importance of Mill Test Certificates
Mill Test Certificates serve as a record that materials used in manufacturing such as CNC machining in China, have been tested and meet specific standards. These standards can include chemical composition, mechanical properties, and other critical parameters. MTCs are essential for verifying that the materials used in parts manufacturing conform to the required specifications and are safe for their intended use. In addition the certificate contains the origin of the raw materials. Which is now necessary information required to import certain materials into the European Union and United states. For manufacturers in China, obtaining MTCs is not just a regulatory requirement; it is also a guarantee of quality. MTCs provide transparency and traceability, which are crucial for maintaining trust with clients and ensuring that the final products are reliable and meet the necessary performance standards. Without these certificates, manufacturers may face issues such as product failures, recalls, or legal liabilities, all of which can have severe consequences for their business.
Steps to Obtain Mill Test Certificates in China
The process of obtaining Mill Test Certificates in China involves several steps, including selecting the right materials, verifying suppliers, conducting tests, and ensuring proper documentation. Each step is essential to ensure that the materials meet the required standards and that the certificates accurately reflect the material’s properties.
1. Material Selection
The first step in obtaining a Mill Test Certificate is selecting the appropriate materials. Manufacturers must choose materials that meet the specific requirements of their products and comply with relevant industry standards. This involves understanding the material’s chemical composition, mechanical properties, and other critical characteristics. In China, manufacturers often source materials from local suppliers. It is essential to ensure that these materials meet the required standards before proceeding with the manufacturing process. This can involve reviewing material specifications, consulting with material experts, and conducting preliminary tests to verify the material’s properties.
2. Supplier Verification
After selecting the appropriate materials, manufacturers must verify their suppliers. Not all suppliers in China have the capability to provide materials that meet the required standards. Supplier verification involves conducting thorough audits of the supplier’s facilities, processes, and quality control measures. During the verification process, manufacturers should review the supplier’s certifications, such as ISO or other relevant quality certifications. On-site inspections may also be necessary to assess the supplier’s production capabilities and adherence to industry standards. Verifying suppliers is a crucial step to ensure that the materials provided are of high quality and meet the necessary standards.
3. Material Testing
Material testing is a critical step in obtaining a Mill Test Certificate. Once the materials have been sourced, they must undergo rigorous testing to ensure they meet the required standards. Testing is typically conducted in accredited laboratories that have the necessary equipment and expertise to perform the required tests. The testing process involves evaluating the material’s chemical composition, mechanical properties, and other relevant characteristics. For example, tests may be conducted to determine the material’s tensile strength, hardness, and corrosion resistance. These tests are designed to ensure that the material will perform as expected in its intended application. In China, manufacturers must work with accredited laboratories that are recognized by the relevant industry authorities. These laboratories must follow strict protocols and use standardized testing methods to ensure the accuracy and reliability of the test results. The test reports generated by these laboratories form the basis for the Mill Test Certificate and provide the necessary evidence to demonstrate that the material meets the required specifications.
4. Certification Process
Once the material testing is complete, the next step is obtaining the Mill Test Certificate. This involves compiling the test reports and other relevant documentation and submitting them to the appropriate certification authority. The certification authority will review the documentation to ensure that the material meets the required standards. In China, Mill Test Certificates are typically issued by the material manufacturer or an accredited testing laboratory. The certificate will include detailed information about the material’s chemical composition, mechanical properties, and other relevant characteristics. It will also provide information about the testing methods used and the standards to which the material conforms. Obtaining the Mill Test Certificate is a crucial step for manufacturers in China. It provides proof that the materials used in parts manufacturing meet the required standards and are safe for their intended use. The certificate also serves as a valuable document for quality assurance and traceability, ensuring that the materials used can be traced back to their source and verified for compliance.
Challenges in Obtaining Mill Test Certificates in China
While the process of obtaining Mill Test Certificates is straightforward, it is not without its challenges. Manufacturers in China may face several obstacles, including difficulties in sourcing high-quality materials, variations in testing standards, and the need to work with international certification authorities. One of the primary challenges is ensuring that the materials sourced from local suppliers meet the required standards. This may require extensive testing and verification, which can be time-consuming and costly. Additionally, manufacturers must navigate the complex regulatory environment, which may involve working with multiple certification authorities and adhering to different sets of standards. Another challenge is the need to work with accredited testing laboratories. In China, not all laboratories have the necessary accreditation to perform the tests required for Mill Test Certificates. Manufacturers must carefully select their testing partners to ensure that the test results are valid and recognized by the certification authorities.
Best Practices for Success
Despite the challenges, manufacturers in China can successfully obtain Mill Test Certificates by following best practices. These include:
- Partnering with Reputable Suppliers: Work with suppliers that have a proven track record of producing materials that meet the required standards. Conduct regular audits and maintain strong relationships with suppliers to ensure consistent quality.
- Working with Accredited Laboratories: Choose testing laboratories that are accredited and recognized by the relevant industry authorities. Ensure that the laboratories follow standardized testing methods and protocols.
- Maintaining Comprehensive Documentation: Keep detailed records of all tests, audits, and certifications. This documentation is essential for the certification process and helps demonstrate compliance with industry standards.
- Staying Informed: Stay up-to-date with the latest industry standards and certification requirements. Regularly review and update internal processes to ensure compliance with changing standards.