European Standard DIN5901 S20 Light Steel Rail
An S20 light steel rail is a specific flat-bottomed rail profile designed primarily for light-duty transportation, material handling, and crane runway systems. It is manufactured according to European standardization, specifically conforming to the DIN 5901 (or historical DIN 20501) standard.The designation "S20" indicates its theoretical weight classification, weighing approximately 19.8 kg per meter.
S20 Rail Dimensions
| Type | Dimension (mm) | Weight | Length | |||
| Head | Height | Bottom | Web | (kg/m) | (m) | |
| S7 | 25 | 65 | 50 | 5 | 6.75 | 6m-12m |
| S10 | 32 | 70 | 58 | 6 | 10 | 6m-12m |
| S14 | 38 | 80 | 70 | 9 | 14 | 6m-12m |
| S20 | 44 | 100 | 82 | 10 | 19.8 | 6m-12m |
Click here to obtain technical drawing PDF of S20 Rail
DIN Rail S20 Light Rail Technical Parameters
| Theoretical Weight | 19.8 kg/m (39.91 lb/yd) |
| Cross-sectional Area (A/S) | 25.26 cm² (3.92 in²) |
| Moment of Inertia (Ix) | 346 cm⁴ (8.31 in⁴) |
| Section Modulus (W) – Base/Rail Foot | 66.8 cm³ (4.08 in³) |
| Section Modulus (W) – Rail Head | 66.8 cm³ (4.08 in³) |
What is the material of the Light Rail S20?
The manufacturing material of DIN 5901 S20 light steel rail directly determines its wheel-load capacity and long-term wear resistance. For international rail procurement, S20 rails are primarily supplied in European standard R700 or its functional equivalent, Chinese standard 55Q.
Technical Equivalence: DIN R700 vs. Chinese 55Q
In global steel sourcing, Chinese 55Q and DIN R700 serve as direct functional equivalents. They share a matching metallurgical framework and mechanical performance profile, making 55Q the standard premium substitution choice for international engineering projects originally specified to European standards.
- DIN R700 (Standard Specification): This carbon-manganese rail steel is defined by its minimal tensile strength boundary (≥ 680 MPa). It provides the critical surface hardness required to withstand rolling friction and continuous shear stresses, preventing rail head flattening in light rail transit systems.
| Technical Parameter | DIN 5901 R700 Specification Value |
| Chemical Composition (Mass Fraction) | |
| Carbon (C) | 0.40% – 0.60% |
| Manganese (Mn) | 0.60% – 1.20% |
| Silicon (Si) | 0.15% – 0.35% |
| Phosphorus (P) | ≤ 0.035% |
| Sulfur (S) | ≤ 0.035% |
| Mechanical Properties | |
| Tensile Strength (Rm) | ≥680 MPa |
| Yield Strength (Re) | ≥ 355 MPa |
| Elongation (A5) | ≥ 14% |
| Brinell Hardness (HBW) | 200 – 240 |
- Chinese 55Q (Manufacturing Equivalent): As a high-quality carbon steel rolled by leading export-oriented steel mills, 55Q aligns perfectly with the hardness and strength tolerances expected by European contractors. When international buyers order S20 rail profiles from global production facilities, 55Q is the industry-standard material supplied to guarantee structural integrity.
| Technical Parameter | GB 55Q Specification Value |
| Chemical Composition (Mass Fraction) | |
| Carbon (C) | 0.50% – 0.60% |
| Manganese (Mn) | 0.60% – 0.90% |
| Silicon (Si) | 0.15% – 0.35% |
| Phosphorus (P) | ≤ 0.040% |
| Sulfur (S) | ≤ 0.040% |
| Mechanical Properties | |
| Tensile Strength (Rm) | ≥ 685 MPa |
| Yield Strength (Re) | ≥ 390 MPa |
| Elongation (A) | ≥ 13% |
| Brinell Hardness (HBW) | ≥ 197 |
Applications of STEEL RAIL S20 DIN 5901
The DIN 5901 S20 light steel rail is engineered for light-duty transportation networks, specialized material handling lines, and compact structural crane tracks. Due to its specific cross-sectional geometry (100 mm height, 82 mm base width) and material hardness provided by steel grades like R700 or 55Q, it operates effectively in environments with strict weight limits and light rolling wheel loads.
The primary industrial applications are categorized below by their operational environment and mechanical function:
Overhead Crane Runways and Gantry Systems
- Light-Duty Cranes: Functions as the top rail for light overhead traveling cranes (EOTC), monorail hoist systems, and small workstation gantries.
- Jib and Wall Cranes: Acts as the horizontal guide track for wall-traveling jib cranes handling localized assembly cell loads.
Mining and Underground Haulage Tracks
- Material and Ore Transport: Guides low-tonnage mine tubs, automated muck cars, and material skips moving raw materials from the extraction face to processing plants.
- Corrosion Resistance Applications: Its relatively thick web (10 mm) provides a structural safety buffer against the humid, corrosive environments typical of underground mining galleries.
Construction and Agricultural Logistics
- Tunneling Projects: Deployed as the muck-removal track during the excavation of small-diameter utility tunnels, pipe-jacking operations, and subway construction.
- Agricultural and Forestry Lines: Used in large-scale sugar cane plantations, palm oil estates, and timber logging operations for heavy bulk crop extraction over marshy or unstable ground.
Why Choose GNEE RAIL?
As a dedicated railway component manufacturer and global exporter, GNEE RAIL delivers high-performance S20 rail solutions backed by verified technical expertise, strict quality management, and comprehensive supply chain capabilities.
Strict Quality Compliance: DIN 5901, ISO 9001, and SGS Certified
GNEE RAIL ensures that every metric ton of S20 light rail meets rigorous international standards. Our production processes eliminate manufacturing defects through standardized metallurgy and rolling controls.
- Dimensional Accuracy: All S20 profiles are rolled strictly according to the DIN 5901 standard, ensuring precise geometry for the 100 mm height, 82 mm base width, and 44 mm head width. This structural consistency guarantees perfect alignment during installation.
- System Certification: Our manufacturing facility operates under a audited ISO 9001:2015 quality management system, covering raw material verification, billet heating temperatures, and final cooling cycles.
- Independent Verification: To guarantee objective compliance for international engineering projects, our steel rail batches are fully certified by international third-party inspection authorities, including SGS, BV, or TÜV.
Customized Engineering Solutions
GNEE RAIL provides full-scale processing and material customization to match your specific engineering layouts:
- Length Customization: While standard stock lengths include 5m to 12m segments, we provide precise sawing and abrasive cutting to deliver custom lengths directly to your project site.
- Secondary Processing: Our workshop offers precise structural modifications, including standard 4-hole or custom rail end drilling for fishplate installations, bevel cutting for expansion joints, and specialized miter cuts.
One-Stop Rail Fasteners Supply
To prevent component mismatches that lead to structural track failure, GNEE RAIL manufactures and supplies the complete system of matching accessories designed specifically for the 82 mm base width of the S20 rail:
- S20 Fishplates / Joint Bars: Precision-stamped 4-hole flat fishplates that seamlessly match the S20 web radius.
- Track Fasteners: High-tensile M16 fishbolts, nuts, and spring washers configured for dynamic shock loading.
- Rail Clips: An elastic rail clip (also known as a rail fastening clip or elastic tension clamp) is a crucial track component used to secure steel rails to railway sleepers.
- Elastic Pads: Continuous rubber pads designed to damp vibrations in crane runways and automated warehouses.
Extensive Export Experience and Full Traceability
With over a decade of dedicated foreign trade and logistics execution in the railway sector, GNEE RAIL provides a reliable procurement experience from production to port delivery.
- Global Logistics Competence: We manage secure container stuffing, heavy-cargo anti-rust packaging, and optimized shipping routes to ensure your materials arrive free of surface pitting or oxidation.
- 100% Technical Traceability: We do not supply commercial grade steel without verification. Every shipment is accompanied by a comprehensive Mill Test Certificate (MTC) matching the heat number stamped on the rails. The MTC provides full transparency regarding chemical composition (Carbon, Manganese, Silicon, Phosphorus, Sulfur) and physical testing (Tensile Strength, Yield Strength, Elongation, and Brinell Hardness).
Frequently Asked Questions (FAQ) – S20 Light Rail
Q1: What standard does the S20 rail comply with, and what are its key dimensions?
A: The S20 rail is manufactured according to the German standard DIN 5901, with a nominal weight of approximately 19.8 kg/m. Its standard profile dimensions feature a height of 100 mm, a base width of 82 mm, a head width of 44 mm, and a web thickness of 10 mm.
Q2: What are the primary applications for the S20 light rail?
A: This rail profile is typically utilized for low-to-medium load transportation systems, such as mining tracks, forest railways, and brickyard material lines.It is also commonly installed in light-duty crane runways and automated warehousing systems that do not require heavy crane rail profiles.
Q3: Do you provide matching installation accessories for the S20 rail?
A: Yes, we offer a complete range of compatible jointing and fastening
accessories to facilitate installation.Our inventory includes standard S20 joint bars (fishplates), matching track bolts and nuts, and various rail clips designed for both concrete and steel foundations.
Q4: What are the standard delivery lengths for the S20 rail?
A: S20 rails are generally supplied in standard lengths of 6, 8, or 10 meters to optimize transport and handling. Custom lengths and specific end-drilling configurations can also be provided upon request to match your layout requirements.
Contact now
At GNEE RAIL, we supply S20 rails manufactured to DIN 5901 standards, offeringreliable material options and a full suite of matching accessories to supportyour project. Our team is prepared to assist you with technical specifications,customized length requests, and efficient delivery scheduling. Contact us today to discuss your tracking requirements and receive a detailed quotation for your project.
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