Description
Technical Parameters
Core Chemical Composition & Mechanical Property Correlation
| Model No. | Chemical Composition (Key Elements, %) | Material Grade | Hardness (HRC) | Tensile Strength (MPa) | Fatigue Life (Cycles) | Core Mechanical Advantage | Compliance Standards |
|---|---|---|---|---|---|---|---|
| SKL-12 | C: 0.56-0.64, Si: 1.60-2.00, Mn: 0.60-0.90 | 60Si2MnA | 42-45 | ≥1200 | ≥3,000,000 | Balanced elasticity for mixed traffic | DIN 17221, UIC 864-1 |
| SKL-14 | C: 0.56-0.64, Si: 1.40-1.80, Cr: 0.70-1.00 | 60Si2CrA | 43-47 | ≥1300 | ≥4,000,000 | High tensile strength for heavy loads | GB/T 1222, EN 10025 |
| SKL-3 | C: 0.52-0.60, Si: 1.50-2.00, Mn: 0.60-0.90 | 55Si2Mn | 42-46 | ≥1100 | ≥2,800,000 | Cost-effective fatigue resistance | ISO 898-1, NF F 500-50 |
| SKL-21 | C: 0.35-0.42, Si: 1.50-1.80, Mn: 0.50-0.80 | 38Si7 | 41-44 | ≥1000 | ≥2,500,000 | Stable stiffness for ballastless track | EN 10139, GB/T 1222 |
| SKL-15 | C: 0.58-0.66, Si: 1.70-2.10, Cr: 0.40-0.60 | 60Si2CrA | 44-47 | ≥1350 | ≥4,500,000 | Enhanced wear resistance for high speed | UIC 515-4, EN 13146 |
Noise Reduction & Vibration Damping Performance
| Model No. | Vibration Damping Coefficient (mm/s²) | Noise Reduction Effect (dB(A)) | Matching Rail Pad Material | Applicable Track Speed (km/h) | Vibration Absorption Advantage | Target Track Type | Service Life with Damping (Years) |
|---|---|---|---|---|---|---|---|
| SKL-12 | ≤150 | 8-12 | EVA | ≤200 | Balances damping for passenger/freight | Mixed traffic lines | 25-30 |
| SKL-14 | ≤140 | 10-14 | Rubber | ≤160 | Reduces heavy-load vibration | Freight mainlines | 20-25 |
| SKL-21 | ≤130 | 12-16 | Silicone | ≤350 | High-speed vibration absorption | High-speed rail | 28-32 |
| SKL-3 | ≤160 | 7-10 | EPDM | ≤120 | Cost-effective noise control | Regional lines | 22-28 |
| SKL-19 | ≤120 | 14-18 | Composite rubber | ≤250 | Enhanced damping for urban rail | Subway/light rail | 30-35 |
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