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Carbon Steel Rail Shoulder
One-stop Rail Shoulder Factory in China Carbon steel rail shoulders are precision-engineered track components that provide lateral restraint and load transfer in modern rail fastening systems. Manufactured from high-strength carbon steel, these shoulders offer superior durability and performance...
Features
One-stop Rail Shoulder Factory in China
Carbon steel rail shoulders are precision-engineered track components that provide lateral restraint and load transfer in modern rail fastening systems. Manufactured from high-strength carbon steel, these shoulders offer superior durability and performance in demanding railway applications.
Performance Characteristics
| Parameter | Value |
|---|---|
| Yield Strength | ≥345 MPa |
| Tensile Strength | ≥450 MPa |
| Elongation | ≥18% |
| Temperature Range | -40°C to +120°C |
| Wear Resistance | <0.1mm/year |
High Strength-to-Weight Ratio - 30% lighter than cast iron with equal strength
Precision Fit - CNC-machined rail contact surfaces (±0.2mm tolerance)
Impact Resistance - Withstands 50J dynamic loads
Fatigue Life - 10⁷ load cycles at design capacity
Corrosion Protection - 2000h salt spray resistance
Technical drawings available upon request.
Rail Shoulder Material & Manufacturing
Material Grade: ASTM A572 Grade 50 (or equivalent EN 10025 S355J2)
Production Process: Hot forging + CNC machining
Heat Treatment: Normalized for uniform grain structure
Surface Finish: Shot peened + zinc-flake coating (80-100μm)
Hardness: 160-200 HB (matched to rail hardness)
Standard Dimensions
| Type | Height | Width | Length | Weight | Rail Compatibility |
|---|---|---|---|---|---|
| CS-60 | 60mm | 80mm | 150mm | 2.8kg | 50-60kg/m |
| CS-75 | 75mm | 90mm | 180mm | 4.2kg | 60-75kg/m |
| CS-90 | 90mm | 100mm | 200mm | 6.5kg | Heavy haul |
Our factory & quipment
FAQ
Q: How are shoulders protected from corrosion?
A: Best practices:
Hot-dip galvanizing (120μm coating)
Rubberized underlayment for electrolytic isolation
Annual eddy current inspections
Cathodic protection in tunnels
Q: What's the expected service life?
A: Typical lifespan:
Dry climates: 25-30 years
Coastal areas: 12-15 years
Heavy haul: 8-10 years
Tunnels: 15-20 years with protection
Q: How does temperature affect shoulder performance?
A: Critical thresholds:
Steel shoulders: Lose 15% strength at <-40°C
Composites: Max continuous +80°C
All materials: Require 2mm expansion gaps in desert climates
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