Description
Technical Parameters
Railway Dog Spikes - Specifications by Application Scenarios
| Model | Application Scenario | Compatible Rail (kg/m) | Compatible Tie Type | Key Dimensions (mm) | Theoretical Weight (g/pc) | Installation Tool |
|---|---|---|---|---|---|---|
| DS-16×120 | Light Rail (Tram) | 8–15 | Wooden Sleepers | Shank Diameter: 16; Length: 120; Head Width: 32 | 280 | Manual Hammer (1.5kg) |
| DS-18×140 | Urban Metro (Track Siding) | 22–30 | Concrete Sleepers (Pre-drilled) | Shank Diameter: 18; Length: 140; Head Width: 35 | 380 | Pneumatic Hammer |
| DS-20×160 | Heavy-Haul Freight Railway | 43–60 | Wooden/Composite Sleepers | Shank Diameter: 20; Length: 160; Head Width: 38 | 520 | Electric Impact Wrench |
| DS-22×180 | Mining Railway | 30–43 (Heavy-Duty) | Anti-Corrosion Wooden Sleepers | Shank Diameter: 22; Length: 180; Head Width: 42 | 680 | Heavy-Duty Pneumatic Hammer |
| DS-17×130 | Rural Regional Railways | 15–22 | Traditional Wooden Sleepers | Shank Diameter: 17; Length: 130; Head Width: 34 | 330 | Manual/Mechanical Hammer |
Railway Dog Spikes - Material Performance & Quality Inspection Standards
| Material Grade | Chemical Composition (Key Elements, Wt. %) | Mechanical Properties | Surface Treatment | Quality Inspection Item | Inspection Standard | Acceptance Criterion |
|---|---|---|---|---|---|---|
| Q235 (Carbon Steel) | C: 0.14-0.22; Mn: 0.30-0.65; Si≤0.30 | Tensile Strength: ≥375MPa; Yield Strength: ≥235MPa; Elongation: ≥26% | Hot-Dip Galvanizing (≥65μm) | 1. Coating Thickness; 2. Tensile Strength | GB/T 13912; GB/T 228.1 | 1. Coating ≥65μm; 2. Tensile Strength ≥375MPa |
| 45# Steel | C: 0.42-0.50; Mn: 0.50-0.80; Si: 0.17-0.37 | Tensile Strength: ≥600MPa; Yield Strength: ≥355MPa; Elongation: ≥16% | Electroplated Zinc (8–12μm) | 1. Hardness; 2. Bend Test | GB/T 230.1; GB/T 232 | 1. Hardness (HB) 197-241; 2. No crack after 90° bend |
| 20MnTiB Steel | C: 0.17-0.23; Mn: 1.30-1.60; Ti: 0.04-0.10; B: 0.0005-0.0035 | Tensile Strength: ≥1080MPa; Yield Strength: ≥930MPa; Elongation: ≥10% | Zinc-Aluminum Coating (10–15μm) | 1. Fatigue Life; 2. Corrosion Resistance | GB/T 3075; ISO 9227 | 1. Fatigue Life ≥10⁵ cycles; 2. Salt Spray ≥400h (no red rust) |
| SS400 (JIS) | C≤0.20; Mn: 0.30-1.00; Si≤0.35 | Tensile Strength: ≥400MPa; Yield Strength: ≥245MPa; Elongation: ≥25% | Black Oxide + Oil Coating | 1. Dimensional Tolerance; 2. Surface Defects | JIS G3101; GB/T 1958 | 1. Dimension Deviation ±0.5mm; 2. No cracks/pits |
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