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DIN 536 Standard A55 Crane Rail
The DIN 536-1:1991 standard specifies the dimensions, material properties, and tolerances for hot-rolled, flat-bottom crane rails. The A55 profile is a specific designation within the "Type A" family, characterized by a wide base and a short, stout web designed to withstand heavy vertical and lateral loads from industrial machinery and overhead gantry cranes.
Dimensions of A55 Crane Rail
A55 Rail Specifications
Key Features Dimensions:
| Height: 65 mm | Base Width: 150 mm |
| Head Width: 55 mm | Web Thickness: 31 mm |
| Length: 6m-12m | Material: 900A/50Mn/U71Mn |
| Weight: 31.8 kg/m | Standard: DIN536 P1:1991 |
If you have special customization requirements for the A55 rail profile, please contact us.
What is the material grade of Rail A55?
A55 crane rails are primarily manufactured from high-strength carbon steel, most commonly 50Mn (manganese steel). Compliant with the DIN 536 P1:1991 standard, these rails provide high durability, wear resistance, and a tensile strength of ≥ 645 MPa. They are suitable for light-to-medium-duty crane systems and industrial applications.
- Material Grades: Typically 50Mn, 900A, or U71Mn.
- Tensile Strength: ≥ 645 MPa.
- Yield Strength: ≥ 390 MPa.
- Hardness: ≥ 260 HB .
| 50Mn | Element | C (Carbon) | Mn (Manganese) | Si (Silicon) | P (Phosphorus) | S (Sulfur) | Cr (Chromium)* | Ni (Nickel)* | Cu (Copper)* |
| Content (%) | 0.47 – 0.55 | 0.70 – 1.00 | 0.17 – 0.37 | ≤ 0.035 | ≤ 0.035 | ≤ 0.25 | ≤ 0.30 | ≤ 0.30 |
| 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 | |||
| 900A | Mechanical Property | Chemical Composition(%) | |||||||||
| Yield strength | Tensile strength | Elongation | Hardness | C | Si | Mn | S | P | |||
| MPa | kg/mm² | MPa | kg/mm² | min | HB | ≤ | ≤ | ||||
| - | - | 880-1030 | - | 10% | - | 0.60-0.80 | 0.10-0.50 | 0.80-1.30 | 0.040 | 0.040 | |
What are the application of DIN 536 A55 crane rail?
DIN 536 A55 crane rail (31.80 kg/m) is primarily used as a light-duty to medium-duty rail for overhead cranes, gantry cranes, trolley rails, and automated material handling systems in industrial environments. It is widely deployed in shipping ports, shipyards, steel fabrication plants, and large-scale, automated warehouses, offering high durability and stability.
Key Application Areas for A55 Crane Rails:
- Overhead Cranes and Factories: Common in manufacturing plants, steel fabrication facilities, and assembly workshops to support overhead lifting equipment.
- Logistics and Warehousing: Ideal for automated material handling systems, stacker cranes, and automated storage/retrieval systems (AS/RS).
- Port and Marine Services: Used for smaller gantry cranes in ports, warehouses, and shipyards for efficient cargo handling.
- Mining and Heavy Industry: Suitable for specialized transportation, excavation machinery, and heavy engineering production facilities.
- Specialized Transport: Used in industrial applications like pier operations, workshop lifting, and moving heavy transformers.
Customization Services for DIN 536 A55 Rail
GNEE RAIL provide end-to-end processing and customization services for the A55 crane rail profile, ensuring that every track segment is engineered to meet the specific mechanical and environmental demands of your project site.
| Service Category | Customization Options & Technical Specifications |
| Precision Machining |
• Standard Lengths: 5–12 m • Specialized Lengths: Up to 25 m • Technical Drilling: Web or base drilling per client drawings • Custom Cutting: Angled cuts and beveling for weld fit |
| Surface Treatments |
• Corrosion Protection: Epoxy, zinc coating, or anti-rust oil • Wear Resistance: Phosphating for coating adhesion • Localized Hardening: Quenching up to HRC 50–55 |
| Structural Forming |
• Precision Bending: Hot or cold bending per track layouts • Alignment Accuracy: Strict tolerance to prevent distortion • Custom Curvature: Engineered for site-specific compatibility |
A55 Crane Rail：Packaging & Delivery
A55 crane rail, manufactured in accordance with the DIN 536 P1:1991 standard, is primarily used for medium-load bridge and gantry crane systems. It is often produced in steel grades like 900A or 50Mn with a weight of 31.8 kg/m. At GNEE RAIL, we understand the precision required for these industrial applications, so every step of packaging and delivery is handled with the utmost care to prevent surface damage and ensure structural integrity.
- Method: Rails are typically bundled using steel straps for secure handling.
- Protection: Moisture-resistant film or specialized wrapping is applied to protect against rust during storage and transit.
- Components: Small accessories like clips and pads are packed separately or secured to prevent loss.
- Customization: GNEE offer customized packing options depending on the, distance, and method of transportation.
FAQ
- What are the primary technical specifications of the A55 Rail?
The A55 crane rail is a specific profile designed according to European standards (often associated with DIN 536). It features a wide base and a low center of gravity to ensure stability under heavy loads. Specifically, an A55 section typically has a head width of 55mm and a weight of approximately 31.8 kg/m, making it ideal for medium-duty industrial tracks.
- In which industries is the A55 hot-rolled rail most commonly used?
The A55 hot-rolled rail is a staple in logistics and manufacturing sectors. You will frequently find it used for overhead crane tracks, automated warehouse retrieval systems, and gantry crane runways. Because of its durable profile, it is also preferred for port machinery and heavy-duty workshop floor tracks where precision movement is required.
- How is the A55 DIN 536 rail typically installed?
Installation of the A55 DIN 536 rail involves securing it to a concrete or steel foundation using specialized rail clips and rubber pads. For permanent setups, the rail ends are often joined via aluminothermic welding or flash butt welding to create a seamless joint, reducing vibration and mechanical wear on the crane wheels.
- What is the difference between A55 and other A-series crane rails?
The main difference lies in the dimensions and load-bearing capacity. While the A45 rail is lighter and used for smaller hoists, the A55 steel track offers a wider running surface and higher vertical load limit. If your project scales up to heavy-duty container handling, you might jump to an A65 or A75 profile.
GNEE RAIL is a leading expert in providing high-performance A55 Crane Rail (DIN 536-1). We offer more than just steel-we provide integrated track solutions tailored to your project.
✅ Full Range & Global Standards 🏗️
We supply the complete DIN A Series (A45 to A150) and a wide variety of rails meeting ASTM, EN, JIS, and GOST standards. No matter the specification, we have the stock to meet your needs.
✅ Bespoke Customization Services 🛠️
Get rails exactly how you need them. We provide professional customized cutting, drilling, and specialized heat treatments based on your specific engineering drawings.
✅ One-Stop Fastener Solutions 🔩
Eliminate compatibility issues. We provide a full suite of matching fasteners, including adjustable rail clips, resilient rubber pads, and high-strength bolts specifically designed for the A55 profile.
✅ End-to-End Logistics & Shipping 🚢
Our professional logistics team ensures secure packaging and efficient global delivery. From seaworthy packing to customs clearance, we ensure your materials arrive on-site, on time, and in perfect condition.
📜 Certified Quality & Authority
Our rails undergo rigorous testing to ensure 100% compliance with international safety standards:
⭐ SGS Certified: Every batch is verified by SGS for chemical composition, mechanical properties, and dimensional accuracy.
⭐ TSI Compliant: Our products meet the TSI (Technical Specifications for Interoperability) standards, ensuring high-level safety and performance for critical rail infrastructure.
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