Description
Technical Parameters
Railway SKL Clips - Cross-Standard Performance Comparison
| International Standard | SKL Model | Material Requirement | Key Mechanical Indicators | Corrosion Resistance Standard | Fatigue Test Criteria | Dimensional Tolerance | Certification Requirement |
|---|---|---|---|---|---|---|---|
| UIC 864-3 (Int'l) | SKL UIC-1 | 55SiMnMo (min. 95% purity) | Tensile Strength: ≥1450MPa; Hardness: HRC 43–48; Elastic Modulus: 200–210GPa | ISO 9227 (NSS): ≥600h (no red rust) | 10⁷ cycles (40–60N·m load, no crack) | Wire Diameter: ±0.1mm; Height: ±0.3mm | UIC Product Certificate; ISO 9001 |
| DIN 536 (Germany) | SKL DIN-3 | 60Si2MnA (C: 0.56–0.64wt%) | Tensile Strength: ≥1500MPa; Hardness: HRC 44–49; Yield Strength: ≥1300MPa | DIN EN ISO 9227: ≥550h (no red rust) | 8×10⁶ cycles (45–55N·m load, no crack) | Wire Diameter: ±0.08mm; Height: ±0.25mm | DIN Certification; IEC 61373 |
| GB/T 12611 (China) | SKL GB-12 | 60Si2MnA (Si: 1.50–2.00wt%) | Tensile Strength: ≥1570MPa; Hardness: HRC 45–50; Elongation: ≥8% | GB/T 10125: ≥500h (no red rust) | 10⁷ cycles (35–50N·m load, no crack) | Wire Diameter: ±0.12mm; Height: ±0.35mm | GB Product Qualification; ISO 14001 |
| AREMA (USA) | SKL AREMA-14 | AISI 9260 (Mn: 0.70–1.00wt%) | Tensile Strength: ≥1600MPa; Hardness: HRC 46–51; Impact Toughness: ≥55J (-20℃) | ASTM B117: ≥400h (no red rust) | 6×10⁶ cycles (50–60N·m load, no crack) | Wire Diameter: ±0.1mm; Height: ±0.3mm | AREMA Approval; ASTM A913 Compliance |
| BS EN 13146 (EU) | SKL BS-24 | S600MC (yield strength ≥600MPa) | Tensile Strength: ≥1400MPa; Hardness: HRC 42–47; Elastic Recovery: ≥95% | BS EN ISO 9227: ≥520h (no red rust) | 9×10⁶ cycles (30–50N·m load, no crack) | Wire Diameter: ±0.09mm; Height: ±0.28mm | CE Marking; BS EN 15048-1 |
Railway SKL Clips - Compatibility with Track System Components
| SKL Model | Compatible Rail Profile (kg/m) | Matching Fastener System | Suitable Rail Pad (Material/Thickness) | Matching Base Plate (Material/Spec) | Required Sleeper Type | Installation Tool Compatibility | Critical Compatibility Check Point |
|---|---|---|---|---|---|---|---|
| SKL UIC-1 | UIC 54, UIC 60 | UIC Standard Fastener (FP-60) | EPDM rubber / 8mm | Q345B steel / 280×150×16mm | Pre-stressed concrete | Pneumatic torque wrench (40–60N·m) | Rail pad compression rate (10%–15%); Base plate hole-clip alignment (≤0.5mm) |
| SKL DIN-3 | DIN 50E, DIN 60E | Vossloh 300-1 Fastener | SBR rubber / 10mm | S355JR steel / 300×160×18mm | Composite sleeper | Electric torque wrench (45–55N·m) | Clip-to-rail shoulder fit (gap ≤0.3mm); Fastener preload (≥120kN) |
| SKL GB-12 | GB 50, GB 60 | WJ-8 High-Speed Fastener | Silicone rubber / 6mm | Q355B steel / 290×155×17mm | High-strength concrete | Digital torque wrench (35–50N·m) | Insulator-resistor matching (≥10⁸Ω); Clip elastic deformation (≤0.4mm) |
| SKL AREMA-14 | AREMA 115RE, AREMA 136RE | Pandrol Fastclip HD | High-density polyethylene / 12mm | A572 Gr.50 steel / 320×170×20mm | Wooden (pressure-treated) | Heavy-duty pneumatic wrench (50–60N·m) | Clip-to-bolt thread fit (no slip); Base plate-sleeper adhesion (≥5MPa) |
| SKL BS-24 | BS 50, BS 75 | Railtech FE Fastener | Nylon-composite / 9mm | S355NL steel / 310×165×19mm | Concrete (pre-drilled) | Manual torque wrench (30–50N·m) | Rail pad lateral displacement (≤1mm); Clip fatigue resistance (≥9×10⁶ cycles) |
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