How much is the tin price today?
| Today's price of tin ingots exported from China | |||||
| Product Name | Specification |
price
|
Increase/Decrease | unit | Way |
| Tin ingots | 99.95%min | 284000-286000 | 1000 | Yuan/ton | Factory price |
What does the tin ingot quality assurance (QA) procedure include?
Tin Ingot Quality Assurance (QA) Protocols
To maintain high purity & consistency, manufacturers follow strict QA measures:A. Raw Material Control
- • High-grade tin concentrate (Sn ≥ 70%) or recycled tin (tested for impurities).
- • Impurity limits (Pb < 0.01%, Bi < 0.05%, As < 0.01%).
B. Refining & Casting Process
- • Electrolytic refining (for ultra-high purity Sn ≥ 99.99%).
- • Inert atmosphere casting (to prevent oxidation).
- • Controlled cooling (slow solidification for uniform structure).
C. In-Process Inspections
- • Spectrometer checks during melting.
- • Visual inspection for dross, cracks, and discoloration.
D. Final Quality Checks
- • Lab testing (chemical & physical properties).
- • Third-party certification (SGS, Intertek, etc.).
- • Documentation (MTC, test reports, traceability records).
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