What are the specific dimensions of Light Rail S18?
The Light Rail S18 is a standardized European light steel rail profile engineered specifically for light-duty transport networks, narrow-gauge material handling tracks, and underground logistical corridors. To summarize its core classification, this S Type Rail is defined by a nominal mass of 18.30 kg/m, a total vertical height of 93.00 mm, a base flange width of 82.00 mm, and a running head width of 43.00 mm, making it highly effective for distributing light-to-medium axle loads. The structural geometry of the S18 profile is meticulously proportioned to provide an optimal balance between bending stiffness and dead weight, allowing rapid track laying and secure joint alignment in confined industrial environments.
- Rail Total Height: 93.00 mm, providing the necessary section modulus to counteract vertical sagging between designated sleeper spacing.
- Base Foot Width: 82.00 mm, establishing a wide foundational surface area that evenly disperses track pressure onto underlying wooden or concrete support ties.
- Head Width: 43.00 mm, machined to accommodate standard European light rail wheel profiles, optimizing traction and reducing flange wear.
- Web Center Thickness: 10.00 mm, structurally rated to absorb lateral impact forces and prevent buckling under concentrated cargo weight.
- Theoretical Mass: 18.30 kg/m, offering a highly practical S18kg rail length weight ratio that allows efficient manual handling in confined mine shafts.
| Product Name | DIN Standard Rail | ||||||
| Standard | DIN5901:1955-11 | ||||||
| Model | DIMENSION | Weight | Material | Length | |||
| A(mm) | B(mm) | C(mm) | t(mm) | (KG/M) | (m/PC) | ||
| S14 | 38 | 80 | 70 | 9 | 14 | 55Q | 6-12 |
| S18 | 43 | 93 | 82 | 10 | 18.3 | 55Q | 6-12 |
| S20 | 44 | 100 | 82 | 10 | 19.8 | RO700 | 6-12 |
| S30 | 60.3 | 108 | 108 | 12.3 | 30.03 | RO700 | 6-12 |
The engineering configuration of this precise European S18 Light Rail ensures uniform wheel-to-rail contact, which significantly limits rolling friction and curtails premature mechanical fatigue on heavy rolling stock components. Manufactured strictly according to the industrial mandates of the DIN 5901 standard, each linear section maintains tight dimensional tolerances and absolute structural continuity across long-term operations. The narrow web thickness combined with a wide base configuration prevents lateral track tipping, ensuring full stability when industrial material skips or light overhead gantry crane systems traverse the completed track alignment.
Which metallurgical properties define the DIN 5901 S18 Rail Material Strength?
The raw chemical composition and yield parameters of the S18 light rails are heavily governed by historical and modern light-duty steel track benchmarks. While heavy passenger or freight rail systems are controlled under separate European standard EN 13674-1 guidelines, the industrial manufacturing sector, short-line logistics, and underground mining industries rely completely on the precise carbon-manganese definitions established within the DIN 5901 S18 steel rails specification.
Selecting the exact steel grade determines how effectively the track structure resists rolling contact fatigue, surface deformation, and environmental oxidation. The underlying metallurgical characteristics of the DIN 5901 Standard Light Steel Rail include:
- Tensile Strength Capacity: Ranging from 680 to 880 MPa minimum, which ensures the rail head can withstand repetitive wheel passage without flattening.
- Manganese-Enhanced Chemistry: The precisely controlled addition of Manganese (Mn) directly increases deep-section hardness and improves overall impact shock absorption.
- Deoxidized Silicon Levels: Silicon (Si) additions are optimized during the furnace process to eliminate internal air pockets, maintaining microstructural density.
- Field Weldability Performance: The carbon equivalent is calibrated specifically to allow standard thermite track welding and localized electric arc joint repairs.
| 55Q | Mechanical property | Chemical composition(%) | |||||||||
| Yield strength | Tensile strength | Elongation | Hardness | C | Si | Mn | S | P | |||
| MPa | kg/mm² | MPa | kg/mm² | min | HBW | ≤ | ≤ | ||||
| ≥ | ≥ | ≥ | ≥ | ≥ | |||||||
| 685 | 69 | 197 | 0.50-0.60 | 0.15-0.35 | 0.60-0.90 | 0.04 | 0.04 | ||||
| Mechanical Property | Chemical Composition (%) | |||||||||||||
| U71Mn | Yield strength | Tensile strength | Elongation | Hardness | C | Si | Mn | S | P | Cr | Ni | Cu | ||
| MPa | kg/mm² | MPa | kg/mm² | min | HBW | |||||||||
| ≥390 | ≥40 | ≥880 | 9% | 0.65-0.76 | 0.15-0.35 | 1.10-1.40 | ≤0.030 | ≤0.030 | ≤0.250 | ≤0.250 | ≤0.250 | |||
Frequently Asked Questions
- What is the exact theoretical mass of the standard S18 profile?
The European standard S18 Light Rail possesses a nominal weight of 18.30 kilograms per linear meter. This structural weight distribution delivers the required rigidity for small-scale industrial transport cars while keeping the track components manageable for quick manual relocation.
- Does the DIN S18 Rail satisfy modern European light track parameters?
Yes, the profile is fully defined under the DIN 5901 standard, which remains the primary benchmark for light steel track manufacturing. While heavy high-speed railways require European standard EN 13674-1 guidelines, light manufacturing and mining tracks utilize the DIN 5901 profile due to its specific optimization for light axle loads.
- What are the common manufacturing lengths available for S18 light rails?
These profiles are typically supplied in standard stock lengths of 6 meters, 8 meters, or 10 meters. Customized lengths can be precision-cut directly during the final mill processing stages to fit precise project track blueprints, minimizing manual on-site cutting and welding tasks.
- Can standard field thermite methods be used to join the S18 Railway Steel Rail?
Yes, the controlled carbon-manganese steel chemistry allows excellent field weldability. The track can be joined seamlessly using standard thermite methods or specialized manual arc welding, provided proper pre-heating temperatures are applied to maintain uniform material hardness across the joint.
- What mechanical properties can be expected from DIN 5901 S18 steel rails?
The DIN 5901 S18 Rail Material Properties provide a high tensile yield strength of 680 to 880 MPa, coupled with balanced surface toughness. This ensures the track effectively resists rolling surface deformation, localized pitting, and rapid cross-section reduction in aggressive, abrasive operating environments.
- Is the Rail S18 profile suitable for installation on sharp curved track zones?
The geometric cross-section of the Profile S18 rail is highly accommodating to cold-bending techniques for tight horizontal curves. This structural adaptability makes it perfectly suited for winding underground mining tunnels and compact factory floor loops where space constraints prevent large radius curves.
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