Description
Technical Parameters
Key Specification of Common Railway E Clip Models
| Item | E1609 | E1809 | E2007 | E2056 |
|---|---|---|---|---|
| Diameter | φ16mm | φ20mm | φ20mm | φ20mm |
| Base Material | 60Si2MnA | 60Si2MnA | 60Si2MnA | 60Si2MnA |
| Min. Clamping Force | ≥950 kg | ≥950 kg | ≥950 kg | ≥950 kg |
| Hardness | 44–48 HRC | 44–48 HRC | 44–48 HRC | 44–48 HRC |
| Mass per Clip | ~0.43 kg | ~0.61 kg | ~0.80 kg | ~0.80 kg |
| Surface Treatment | Oil, zinc-plated, hot-dip galvanized, Dacromet | Oil, zinc-plated, hot-dip galvanized, Dacromet | Oil, zinc-plated, hot-dip galvanized, Dacromet | Oil, zinc-plated, hot-dip galvanized, Dacromet |
| Typical Application | Light rail, tram | Mainline passenger/freight | High-speed railway | Heavy-haul railway |
Essential Inspection Checklist for Railway E Clips
| Inspection Item | Method | Acceptance Criteria | Sampling Plan |
|---|---|---|---|
| Material Composition | Handheld PMI spectrometer | Key elements (C: 0.56–0.64%, Si: 1.50–2.00%) meet 60Si2MnA standard | 3 pcs/batch |
| Hardness | Rockwell hardness tester (HRC) | 44–48 HRC; 2 test points/pc | 5 pcs/batch |
| Surface Defects | Visual check + 10× magnifier | No cracks, burrs, or peeling coating; rust ≤ Grade A | 100% inspection |
| Dimensional Accuracy | Digital caliper (0.01mm) | Diameter deviation ≤±0.2mm | 10 pcs/batch |
| Fatigue Performance | Fatigue testing machine | No fracture after 3–5 million cycles | 2 pcs/batch (per shift) |
| Packaging Integrity | Visual inspection | Anti-rust packaging intact; no moisture | 3 packages/batch |
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