What an MTC can help you verify
A Mill Test Certificate is a record intended to provide information about a material batch. Depending on the document and requirement, it can include producer details, heat or batch references, product form, dimensions, standard designation, chemistry, and mechanical-test results.
It is not a standalone approval. Its value comes from comparing the certificate with the exact material received and the specification the buyer approved for the job.
Eight checks before releasing material
Use a documented receiving process appropriate to the risk of the order. The following sequence is a practical starting point and should be adapted to your own quality requirements.
- Match supplier and purchase-order references
- Check the producer, certificate number, and issue details
- Match heat, cast, lot, or batch identifiers to the delivered material where applicable
- Confirm product form, nominal size, and quantity or weight against the order
- Check the grade and governing standard listed on the certificate
- Review chemistry and mechanical results when the specification requires them
- Check material condition and any required test or inspection references
- Record the review result before releasing the material to production
Manage gaps before machining or fabrication
If the MTC is missing, does not match the order, cannot be traced to the delivery, or contains a result that needs interpretation, hold the material under your internal process and clarify the discrepancy before use. Do not correct the document informally or assume a similar grade is acceptable.
A disciplined check protects the supplier relationship as well as the buyer: it creates a clear basis for resolving a mismatch while the material is still identifiable.
Frequently asked questions
Is an MTC the same as a purchase order?+
No. The PO states the buyer’s requirement. An MTC provides batch-related material information. They should be compared with each other and with the delivered material during receiving.
What should I do if the heat number cannot be matched?+
Follow your internal hold and escalation process. Ask the supplier to clarify the traceability gap before material is released to production.
Can an MTC prove a material is suitable for every component?+
No. It can provide material evidence, but component suitability still depends on the approved design, process, service condition, and buyer quality requirements.
Start with the specification that matters
Send the grade, shape, diameter or section size, quantity, and delivery location via WhatsApp. CV Tanamas can help you check the relevant supply path before you issue a purchase order.