Five gates, one batch number, and a paper trail that matches the box.
For a material supplier, quality is not a certificate on a wall — it is whether the document that arrives with the pallet describes what is actually inside it. Here is how we build that evidence, and what we can and cannot certify.
Inspection
Five gates before a batch is released.
Incoming material
Grade and batch number are recorded on receipt, the composition is sampled, and material that does not match the stated grade does not enter the furnace.
Composition
Melt composition is verified against the grade specification and, where a customer technical agreement exists, against that agreement as well.
Drawing
Diameter and surface condition are controlled pass by pass. Drift is corrected during the run, not discovered at despatch.
Annealing
Furnace cycles set the delivered temper, so that soft, half-hard or hard condition is consistent from the first metre to the last.
Final check & sample
Dimensional and mechanical verification, resistance per metre for resistance alloys, and a retained sample held against the batch number.
Documentation
What can travel with the shipment.
The right-hand column distinguishes documents we issue as standard from those arranged on request, because the second group adds lead time and a testing cost that belongs in the quotation rather than in a surprise on the invoice.
| Document | What it records | Availability |
|---|---|---|
| Material test certificate | Grade, batch number, chemical composition and mechanical properties of the delivered batch | Standard — issued with every shipment |
| Dimensional verification record | Measured diameter against the agreed tolerance | Standard |
| Sample card | Grade, diameter, batch number and measured resistance | Standard — with sample orders |
| EN 10204 3.1 inspection certificate | Manufacturer's inspection certificate covering the delivered batch | On request — we will confirm the exact wording your receiving QA requires before the order is confirmed |
| Third-party test report | Composition, mechanical properties and resistance tested by an accredited (CNAS) laboratory | On request — quoted per batch; adds to the lead time |
| Thermal EMF pairing data | Matched-pair verification for thermocouple positive and negative legs | On request — carried out with a partner laboratory |
| RoHS declaration | Restricted-substance statement for the supplied material | On request |
| REACH SVHC declaration | Statement on substances of very high concern, per material | On request |
Scroll the table sideways to see all columns.
Certification
Certified to ISO 9001 since 2012 — and scoped to what we actually make.
Fourteen years under the same quality management system, audited by an accredited certification body. We publish the certificate number rather than a badge, so your QA department can check it before the first order instead of after it.
Certificate at a glance
On the registered name. The certificate is issued to our manufacturing entity, Changzhou Xianyu Alloy Decoration Project Co., Ltd. XIANYU ALLOY is the trading name used by the alloy wire division. When you verify the certificate, quote the number above — that is what appears on the issuing body's register.
Verification. The certificate can be looked up on the CNCA national register at www.cnca.gov.cn using certificate number 04324Q31848R4S and unified social credit code 91320402593971725D.
Certification
What we certify, and what we will not pretend to.
Bare alloy wire is a material, not a finished electrical device. That distinction decides which certificates are relevant — and which ones would be a waste of money.
| Certificate | Status |
|---|---|
| Material test certificate per batch | Issued as standard |
| Test evidence to IEC 60584-1 / ASTM E230 (thermocouple types) | Available as test data on request |
| Test evidence to ASTM B160 (nickel wire) | Available as test data on request |
| ISO 9001 quality management system | Certified since 2012 — cert. 04324Q31848R4S |
| EN 10204 3.1 inspection certificate | On request |
| UL / CSA / CE | Not applicable to bare alloy wire — see note |
Scroll the table sideways to see all columns.
Common questions
The questions our customers' QA departments ask.
Do I need UL, CSA or CE for bare alloy wire?
No — and buying them for a bare wire order would be money spent on the wrong thing. Those marks apply to finished electrical products placed on the market as devices. Bare alloy wire is a raw material that goes into someone else's product, so the safety approval attaches to that product, not to our spool.
What your receiving inspection will ask for instead is a material test certificate, dimensional verification, and where applicable test evidence to the named standard such as IEC 60584-1 or ASTM E230. Those we can provide.
Can you certify to IEC 60584 or ASTM E230?
We can supply test evidence against the applicable reference tables and, for thermocouple grades, matched-pair verification through a partner laboratory. Where a customer's specification requires a certificate issued by an accredited third party rather than by the manufacturer, we arrange it per batch and reflect the cost and lead time in the quotation.
Before you place the order, tell us the exact standard, edition and certificate type your quality system needs. It is far cheaper to align on that up front than to discover a mismatch when the pallet arrives.
Can you hold a composition window tighter than the national standard?
Often yes, because we melt the alloy ourselves rather than buying rod on the open market. A tighter window has to be assessed against the grade and the quantity — narrow windows cost yield. Send us the window you need and we will confirm feasibility before quoting.
What happens if the wire is outside tolerance?
Raise it against the batch number on the certificate, with photographs and the measured values. Because a sample of the batch is retained here, we can re-measure it against the agreed specification. Where a batch is confirmed out of specification, we will replace or credit it — the remedy is agreed in the contract, so it is worth settling that wording before the first order rather than after a problem.
Can an independent inspector attend the inspection? (SGS, BV, TÜV)
Third-party inspection can be arranged and, with notice, an inspector can attend the final inspection before packing. Tell us the inspection scope and the date you need, and we will schedule the run so the material is available for inspection and not already packed.
How is traceability maintained after delivery?
Every spool, coil and case carries a label with the grade, size, temper, batch number and net weight, and the same batch number appears on the material test certificate. Retained samples allow us to re-verify a batch long after it has shipped.
Next step
Send us your documentation requirement with the specification.
Tell us which certificate, standard and edition your quality system will ask for. We will confirm what we can issue, what has to be arranged with a third party, and how that affects price and lead time.