Railway Dog Spikes - Cross-Regional Standard Parameter Comparison
| Regional Standard | Model Code | Shank Type | Key Dimensions (mm) | Material Requirement | Mechanical Performance | Corrosion Resistance | Compatible Sleeper/Rail | Mandatory Certifications |
|---|---|---|---|---|---|---|---|---|
| GB/T 152-2019 (China) | DS-GB20×160 | Ribbed | Shank Diameter:20; Length:160; Head Height:18 | Q345B (C≤0.20wt%; Mn:1.00-1.60wt%) | Tensile Strength≥510MPa; Yield Strength≥345MPa | Hot-dip galvanizing (≥85μm); Salt spray≥500h | Wooden/composite sleepers; 43-60kg/m rail | GB Product Qualification; ISO 14001 |
| AREMA (USA) | DS-AREMA18×140 | Knurled | Shank Diameter:18; Length:140; Head Height:16 | A36 (C≤0.25wt%; Mn:0.80-1.20wt%) | Tensile Strength≥400MPa; Yield Strength≥250MPa | Zinc-nickel plating (10-12μm); Salt spray≥400h | Pressure-treated wood sleepers; 30-50kg/m rail | AREMA Approval; ASTM A36 Compliance |
| BS EN 13481-4 (EU) | DS-BS19×150 | Smooth | Shank Diameter:19; Length:150; Head Height:17 | S355JR (C≤0.20wt%; Si≤0.55wt%) | Tensile Strength≥470MPa; Yield Strength≥355MPa | Dacromet coating (15-20μm); Salt spray≥550h | Precast concrete sleepers; 35-55kg/m rail | CE Marking; BS EN 15048-1 |
| JIS E 2015 (Japan) | DS-JIS21×170 | Hexagonal | Shank Diameter:21; Length:170; Head Height:19 | SM490A (C≤0.20wt%; Mn:1.00-1.60wt%) | Tensile Strength≥490MPa; Yield Strength≥325MPa | Zinc-aluminum coating (12-15μm); Salt spray≥580h | Fiber-reinforced plastic sleepers; 40-60kg/m rail | JIS Certification; ISO 9001 |
| UIC 864-2 (Int'l) | DS-UIC20×160 | Ribbed | Shank Diameter:20; Length:160; Head Height:18 | S355NL (C≤0.18wt%; Mn:1.00-1.60wt%) | Te |
Railway Dog Spikes - Material Process & Quality Acceptance Standards
|
Material Grade |
Chemical Composition (Key Elements, Wt. %) |
Manufacturing Process |
Surface Treatment |
Quality Inspection Items |
Acceptance Criterion |
|
20MnTiB Alloy Steel |
C:0.17-0.23; Mn:1.30-1.60; Ti:0.04-0.10; B:0.0005-0.0035 |
Hot forging → Normalizing → Shot peening → Thread rolling (if needed) |
Zinc-Aluminum Coating (10–15μm) |
1. Impact Toughness; 2. Fatigue Life |
1. Impact Toughness≥63J (-20℃); 2. Fatigue Life≥10⁵ cycles |
|
SS400 (JIS) |
C≤0.20; Mn:0.30-1.00; Si≤0.35 |
Hot rolling → Cutting → Surface grinding |
Black Oxide + Oil Coating |
1. Dimensional Tolerance; 2. Surface Defects |
1. Dimension Deviation±0.5mm; 2. No cracks/pits |
|
304 Stainless Steel |
C≤0.08; Cr:18.00-20.00; Ni:8.00-11.00 |
Cold rolling → Forming → Passivation treatment |
Electropolishing |
1. Corrosion Resistance; 2. Chemical Composition |
1. Salt Spray≥1000h (no red rust); 2. Cr content≥18wt% |
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