| Grade | QSn4-3 (C51100) |
| Width | 300–1200 mm |
| Temper | H01 / Annealed |
| Stock | Contact for stock |
| MOQ | Flexible MOQ · 24h reply |
| Lead Time | 7-10 days |
| Certificate | ISO 9001, SGS, ASTM B152, EN 1172, GB/T 5231 |
Common uses include Springs, switches and connectors. QSn4-3 is a phosphor bronze sheet alloy for springs, contacts and bushings. Current stock covers width 300–1200 mm. Custom sizes are slit or cut to length with a mill certificate on every order; stocked sizes ship within 7-10 days.
| Specification | Value |
|---|---|
| Width | 300–1200 mm |
| Temper | H01 / Annealed |
| Cu | Pb | Fe | Sn | P | Zn |
|---|---|---|---|---|---|
| 92.0–96.0 | ≤0.5 | ≤0.3 | 3.8–5.0 | ≤0.02 | ≤1.0 |
| Property | Value |
|---|---|
| Tensile Strength | ≥450 MPa |
| Yield Strength | ≥350 MPa |
| Elongation | ≥15% |
| Hardness | ≥120 HB |
| Density | 8.80 g/cm³ |
1Each product is covered with PE protective film to prevent scratches and oxidation during transit and storage.
2Products are wrapped with moisture-proof paper and foam to provide cushioning and humidity protection.
3Steel strapping and corner protectors are applied to reinforce the package structure for heavy-duty transport.
4Each package is clearly labeled with product specifications, batch number, weight, and handling instructions.
1Confirm specs, quantity and lead time, sign PI, then schedule production after deposit received.
2Manufacturing with in-line quality checks; SGS/BV third-party inspection available upon request.
3Container booking, factory loading, and departure from Shanghai or Ningbo port.
4Customs declaration, Bill of Lading, and all export documents issued for smooth clearance.
MOQ is flexible and set per project. Tell us your quantity and we will confirm availability and pricing within 24 hours.
Standard lead time is 7-10 days. Exact delivery depends on specification, quantity, and current production schedule. Contact us for a firm delivery date on your order.
QSn4-3 (C51100) are available for this product. We stock a wide range of industrial grades and can source specialty specifications on request. Contact us for the full grade list and availability.
Yes. Every shipment includes a mill test certificate documenting chemical composition and mechanical properties. EN 10204 3.1 inspection documents are available on request, and third-party inspection by SGS, BV, or Intertek can be arranged.
Available surface finishes include 2B (cold rolled, smooth), BA (bright annealed), No.1 (hot rolled, annealed), 2D (cold rolled, dull), HL (hairline), No.4 (brushed), and Mirror polish. Tell us your forming process and we will recommend the right finish for the application.
