What Are the Dimensions of the S20 Light Rail?
DIN S20 light rail is a DIN 5901 profile with a nominal linear mass of 19.80 kg/m. Its main dimensions are 100 mm rail height, 82 mm base width, and 44 mm head width.
GNEE RAIL supplies S20 light rail with dimensional inspection and project-specific technical documentation. S20 rail is used for light-duty industrial tracks, mining and material-handling systems, workshop tracks, and other applications where the DIN 5901 S20 profile is specified. Rail selection should be based on the required axle load, support spacing, wheel profile, and fastening system rather than rail weight alone.
Standard Technical Dimensions & Specifications of DIN 5901 S20 Rail
The DIN 5901 S20 rail profile is defined by its cross-sectional geometry, linear mass, and dimensional requirements. These parameters are essential for checking compatibility with rail clips, joint bars, rail pads, and wheel profiles.
S20 Rail Dimensional Parameters Table
| Rail Profile | Standard Weight (kg/m) | Height H (mm) | Foot Width B (mm) | Head Width A (mm) | Web Thick C (mm) | $I_x$ ($cm^4$) | Recommended Max Wheel Load |
|---|---|---|---|---|---|---|---|
| DIN 5901 S14 | 14.00 | 80.00 | 70.00 | 38.00 | 9.00 | 171.0 | ≤ 2.5 Tons |
| DIN 5901 S18 | 18.30 | 93.00 | 82.00 | 43.00 | 10.00 | 304.0 | ≤ 4.0 Tons |
| DIN 5901 S20 | 19.80 | 100.00 | 82.00 | 44.00 | 10.00 | 398.2 | ≤ 5.5 Tons |
| DIN 5901 S24 | 24.43 | 115.00 | 90.00 | 53.00 | 10.00 | 684.0 | ≤ 7.5 Tons |
| DIN 5901 S30 | 30.03 | 108.00 | 108.00 | 60.30 | 12.30 | 605.0 | ≤ 10.0 Tons |
Material Grade & Mechanical Properties of DIN 5901 S20 Rail
GNEE RAIL supplies DIN 5901 S20 rail primarily in 55Q rail steel, providing a suitable balance of strength, hardness, and wear resistance for light-duty industrial, mining, and material-handling applications.
| Chemical Composition of Chinese Standard(%) | Mechanical Properties of Chinese Standard | ||||||||||
| Grade | C | Si | Mn | ≤ P | ≤ S | V | Grade | Yield strength (Mpa) | Tensile strength (Mpa) | Elongation (%) | Hardness (%) |
| 55Q | 0.50-0.60 | 0.15-0.35 | 0.60-0.90 | 0.045 | 0.045 | － | 55Q | － | ≥685 | － | ≥197 |
The required steel grade should be selected according to axle load, operating conditions, wear requirements, and welding requirements. GNEE RAIL can provide the corresponding material documentation and MTC according to the specified grade.
S20 Rail Compatible Fasteners & Turnkey Track Accessories
GNEE RAIL supplies S20-compatible rail fastening components and track accessories matched to the DIN 5901 S20 rail profile and its 82 mm rail foot width. Components can be supplied individually or as a matched set according to the rail profile, support structure, fastening layout, and project drawings.
| Component | Technical Specification | Function |
|---|---|---|
| Fishplates / Joint Bars | S20-compatible 4-hole / 6-hole joint bars | Connect and align rail ends |
| Rail Clips | Weldable clips or bolted clamp assemblies | Secure the 82 mm rail foot to the supporting structure |
| Sole Plates / Base Plates | Fabricated or cast steel plates with required hole patterns | Distribute wheel loads to beams, sleepers, or foundations |
| Track Bolts & Nuts | M14 / M16 high-strength bolts and matching nuts | Secure rail joints and fastening components |
| Resilient Rail Pads | Synthetic rubber / EVA pads matched to the S20 rail base | Reduce vibration and distribute rail-seat loads |
GNEE RAIL can also provide matched fastening components based on the S20 rail profile, support structure, and installation requirements.
Request S20 Fastening Solution
Frequently Asked Questions
Q1: What is the nominal weight per meter of DIN 5901 S20 rail?
The nominal linear mass of DIN 5901 S20 rail is 19.80 kg/m. Actual supplied weight may vary within the applicable manufacturing tolerance.
Q2: What is the difference between DIN S20 and GB 22 kg rail?
The profiles have different dimensions. S20 is 100 mm high with an 82 mm base, while GB 22 kg is approximately 93.66 mm high with a wider base. Their joint bars, rail clips, and other fastening components should not be assumed interchangeable.
Q3: Can S20 rail be bent for curved tracks?
S20 rail can be mechanically bent for curved track applications, but the minimum bending radius and bending method should be determined according to the rail material, section properties, and project requirements. GNEE RAIL can provide bending services subject to the required radius and drawings.
Q4: What standard lengths are available for S20 rail?
GNEE RAIL can supply S20 rail in standard or project-specific lengths, including custom cut-to-length requirements. Available lengths and cutting tolerances should be confirmed when requesting a quotation.
