What are the Exact Dimensions and Technical Specifications of DIN S30 Rail?
DIN 5901 S30 light steel rail features a symmetrical rail profile with a height of 108.00 mm, base width of 108.00 mm, head width of 60.30 mm, and web thickness of 12.30 mm. The rail has a nominal linear weight of 30.03 kg/m (20.18 lbs/ft) and a cross-sectional area of 38.97 cm². It is commonly used for industrial tracks, mining lines, material handling systems, and other applications requiring higher strength than lighter S-series rail profiles.
Detailed Sectional Dimensions and Tolerances of S30 Steel Rail
DIN S30 Sectional Profile Drawing
Comprehensive Dimension Table
The geometric sectional properties dictate the bending resistance, inertia, and maximum wheel load distribution of the S30 rail profile under operation.
| Parameter Description | Symbol | Metric Value | Imperial Value |
|---|---|---|---|
| Rail Height | H | 108.00 mm | 4.252 in |
| Foot / Base Width | F | 108.00 mm | 4.252 in |
| Head Width | K | 60.30 mm | 2.374 in |
| Web Thickness | S | 12.30 mm | 0.484 in |
| Flange Edge Thickness | h1 / t | 9.00 mm | 0.354 in |
| Cross-Sectional Area | A | 38.97 cm² | 6.040 in² |
| Calculated Mass per Meter | M | 30.03 kg/m | 20.18 lbs/yd (60.54 lbs/yd calculated) |
| Moment of Inertia (X-X Axis) | Ix | 605.30 cm⁴ | 14.54 in⁴ |
| Section Modulus (Head / Base) | Wx | 104.20 cm³ | 6.359 in³ |
Manufacturing Tolerances According to DIN Standards
GNEE RAIL manufactures S30 light rails strict to DIN 5901 dimensional tolerances. Dimensional deviation control ensures accurate fitment with fishplates, rubber pads, and crane rail clips.
| Dimension Property | Standard Profile Size | Permissible Tolerance (DIN 5901) |
|---|---|---|
| Rail Height (H) | 108.00 mm | ± 1.00 mm |
| Base Width (F) | 108.00 mm | ± 1.00 mm |
| Head Width (K) | 60.30 mm | ± 0.50 mm |
| Web Thickness (S) | 12.30 mm | ± 0.50 mm |
| Straightness (Camber / Bow) | Straightness deviation | ≤ 1.5 mm per meter; Total length ≤ 3.0 mm |
| Cutting Length Tolerance | 6m, 8m, 10m, 12m | 0 to +50.0 mm |
| Bolt Hole Diameter & Position | Custom / Standard DIN | Diameter ± 0.5 mm; Hole pitch center ± 1.0 mm |
Material Grades and Mechanical Properties for S30 Light Rail
GNEE RAIL supplies DIN S30 light steel rail in Q235B and 55Q steel grades according to project requirements. These materials provide different levels of strength, hardness, and wear resistance for various industrial track applications.
Q235B is a commonly used carbon structural steel with good weldability and reliable mechanical performance. It is suitable for light-duty industrial tracks, material handling systems, and applications with moderate loading conditions.
| 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 (%) |
| Q235 | 0.12~0.20 | ≤0.3 | 0.3~0.7 | 0.045 | 0.045 | － | Q235 | ≥235 | 375-460 | ≥26 | － |
55Q is a higher-strength rail steel grade with improved tensile strength and wear resistance compared with Q235B. It is commonly selected for mining tracks, industrial transport systems, and applications requiring longer service life under frequent operation.
| 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 final material selection depends on operating load, wheel contact conditions, running frequency, and required service life. GNEE RAIL provides material certificates (MTC) to verify chemical composition and mechanical properties for each S30 rail shipment.
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Typical Industrial Applications of S30 Rail
Underground Mining Transport Systems
S30 rails serve as primary haulage lines in underground coal, metal, and mineral mines. The 108 mm base width provides lateral stability for mine cars, battery locomotives, and shuttle skips operating on narrow gauges (600mm, 762mm, 900mm).
Factory Overhead Crane Rails and Automated Warehouses
Used as runway beams for light to medium-capacity bridge cranes, monorails, stacker cranes, and automated guided vehicles (AGV) in industrial plants, steel processing workshops, and warehouse transfer corridors.
Light Railway Lines & Narrow Gauge Tracks
Integrated into regional light passenger tracks, agricultural transit lines, forestry transport routes, and tourist narrow-gauge railways requiring durable yet manageable steel profiles.
Industrial Material Handling and Port Equipment
Applied in port storage yards, shipyards, brickworks, tunneling projects, and industrial batching plants for heavy duty gantry trolleys, pipe transfer cars, and slag dump cars.
Complete S30 Rail Supply: Accessories, Processing, and Export Support
GNEE RAIL supplies complete DIN S30 rail solutions, including matching track accessories, processing services, quality documentation, and export support. In addition to S30 steel rails, we provide compatible fishplates, fishbolts, rail clips, soleplates, and elastomeric rail pads to ensure proper system compatibility and installation performance.
For different project requirements, DIN S30 rails can be supplied with customized processing services, including cut-to-length, bolt hole drilling, and other machining operations based on technical drawings. This helps reduce field preparation work and simplifies on-site installation.
Each S30 rail shipment can be provided with EN 10204 3.1 Mill Test Certificates (MTC), including material traceability, chemical composition, and mechanical test results. GNEE RAIL also supports export packaging, anti-rust protection, container loading optimization, and international delivery arrangements according to project requirements.
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Frequently Asked Questions (FAQ) - DIN S30 Rail
What is the weight per meter of DIN S30 rail?
Answer: The nominal linear weight of DIN 5901 S30 light rail is 30.03 kg/m (approximately 20.18 lbs/ft).
What is the difference between S30 rail and S24 rail?
Answer: The main differences are rail profile dimensions and linear weight. DIN S30 rail has a higher linear weight of 30.03 kg/m, with a rail height of 108 mm and base width of 108 mm. S24 rail has a lower weight of 24.40 kg/m and a different profile design. The suitable choice depends on the required loading conditions and track application.
What standard lengths are available for DIN S30 rail?
Answer: Common supply lengths for DIN S30 rail include 6 m and 12 m. GNEE RAIL also provides cut-to-length processing according to project requirements.
Can DIN S30 rail be welded?
Answer: Yes, DIN S30 rail can be welded depending on the installation requirements and material grade. Q235B provides good weldability for general applications, while 55Q requires appropriate welding procedures to maintain rail performance.