Quality Certificates, Technical Documents & Project Support
Use this center to understand the quality evidence and documentation available for material supply. Controlled certificate copies and order-specific documents can be provided through our sales team.
Verified Certificates Behind Our Manufacturing & Testing.
TÜV SÜD Quality Management Certificate
Jiangsu Xinhua Alloy Co., Ltd.
Registration TUV100 03 5035
Valid 2024-05-28 to 2027-05-27
Certified scope covers manufacturing and sales of electrical heating alloy, high-temperature alloy, nickel and nickel-alloy welding materials, precision alloy, heat-resistant steel and metal spring.
Request certificate copy →CNAS-Accredited Testing Center
Jiangsu Xinhua Alloy Co., Ltd. Testing Center
Registration CNAS L19319
Effective 2023-10-30 to 2029-10-29
The accredited scope includes defined alloy chemistry, tensile, hardness, impact, grain-size and metallographic testing activities.
Request certificate copy →PT, UT, PMI, thickness, IGC and other order-specific inspections may be available as production or project inspection support; CNAS-accredited claims are limited to the scope formally covered by CNAS L19319.
All Supporting Records Displayed Together — No Carousel.
The certificate and qualification images previously uploaded to the website are now shown in one static overview so procurement and vendor-review teams can scan the available evidence without waiting for a slider. These images are supporting corporate records; current controlled copies and exact validity should be confirmed through our sales team.
Qualifications & Company Records
Our existing company materials include business and enterprise qualification records, honor certificates and other corporate supporting documents. They are presented here as background evidence for supplier review.
Patents & Technical Recognition
The company presentation also includes patent certificates and technical or innovation recognition. For formal vendor qualification, current supporting copies can be provided through the sales team.
Controlled Quality Credentials
ISO 9001:2015 and CNAS L19319 are summarized separately with registration and validity details. Controlled copies should be requested when required for an RFQ, audit or project approval.
What the Accredited Testing Scope Actually Covers.
The Jiangsu Xinhua Alloy Co., Ltd. Testing Center is accredited to ISO/IEC 17025:2017 under CNAS L19319. The table below summarizes the principal accredited testing areas shown in the current certificate schedule; the certificate itself remains the controlling source for exact ranges and method limitations.
| Test Object / Area | Accredited Item | Referenced Method |
|---|---|---|
| Nickel-Based Alloys | Multi-element chemical analysis | GB/T 38939-2020 · defined element/range limits |
| Nickel Alloys | Multi-element chemical analysis | GB/T 11170-2007 · defined scope limits |
| Metallic Materials | Room-temperature tensile testing | GB/T 228.1-2021 · Method B / scope limitations apply |
| Metallic Materials | Elevated-temperature tensile testing | GB/T 228.2-2018 · 300–1000°C within stated scope conditions |
| Metallic Materials | Brinell hardness | GB/T 231.1-2018 · HBW10/3000 |
| Metallic Materials | Rockwell hardness | GB/T 230.1-2018 · HRBW / HRC |
| Metallic Materials | Charpy impact testing | GB/T 229-2020 · certificate scope limitations apply |
| Metallic Materials | Average grain size | GB/T 6394-2017 · comparison / intercept methods |
| Steel Materials | Nonmetallic inclusions | GB/T 10561-2005 · Method A |
| Superalloys | Banding grains & primary-carbide distribution | GB/T 14999.4-2012 · comparative method |
PT, UT, PMI, thickness checks, hydrostatic testing and IGC may be supported as production or project inspection activities, but they are not presented as CNAS-accredited items unless the applicable certificate schedule explicitly covers them.
Documents Commonly Requested with Alloy Supply.
EN 10204 Type 3.1 / 3.2
Material inspection documentation can be supported according to the purchase order and agreed inspection route.
Test & Inspection Reports
Chemistry, mechanical testing, hardness, dimensions and other agreed inspection records can be coordinated with the order.
TPI / Witness Documents
Third-party inspection or witness activities can be coordinated when specified by the project or customer.
Material Identification Records
Heat-number identification, QC records and retained-sample practices support traceability where required.
Product Data & Standards
Grade, standard, product form and manufacturing information can be supplied for project review.
Drawing & Inspection Coordination
For forgings and machined parts, documentation can be aligned with drawings, ITPs and customer specifications.
Request the Current Certificate or Project Document from Sales.
To avoid outdated or uncontrolled document copies, certificate PDFs and order-specific quality documents can be issued through the international sales team. State the document you need and, where relevant, the project or purchase-order reference.
Need Documentation for an RFQ or Vendor Review?
Tell us the required certificate, alloy grade, product form and project standard so we can provide the appropriate supporting documents.