Crane heavy rail is a specialized, robust steel track system designed to support and guide heavy industrial cranes (like overhead gantry cranes in factories or ship-to-shore cranes in ports) for precise horizontal movement, unlike standard railway tracks for trains, featuring a specific profile (wider head, thicker web) to handle extreme, concentrated point loads, impacts, and frequent stop-start cycles, ensuring stable, durable material handling.
What are crane rails made of?
Crane rails are primarily made from high-strength, hardened carbon and alloy steels, specifically designed for heavy loads, featuring high manganese content (like U71Mn or U75VX grades) for superior wear resistance and hardness, ensuring stability and durability in demanding industrial environments.
Key Materials & Properties
- High Carbon Steel: Provides essential hardness to resist wear from crane wheels.
- Manganese (Mn): Added to enhance hardness, strength, and wear properties, with typical content ranging from 1.1% to 1.5% in grades like U71Mn.
- Alloy Steels: Low-alloy steels with elements like Manganese (Mn) and Silicon (Si) improve wear and corrosion resistance.
- Killed Steel: A high-quality steel (often from open-hearth smelting) with controlled gas content, preventing defects like cracks and bubbles for improved safety and performance.
| Steel Grade | C(%) | Si | Mn | Cr | V | P | S | Tensile Strength (Rm/MPa) |
|---|---|---|---|---|---|---|---|---|
| U71Mn | 0.65~0.76 | 0.15~0.58 | 0.70~1.40 | – | – | ≤0.035 | ≤0.030 | ≥880 |
| U75V | 0.71~0.80 | 0.50~0.80 | 0.75~1.05 | – | 0.04~0.12 | ≤0.035 | ≤0.030 | ≥980 |
| U78CrV | 0.72~0.82 | 0.50~0.80 | 0.70~1.05 | 0.30~0.50 | 0.04~0.12 | ≤0.035 | ≤0.030 | ≥1080 |
| U77MnCr | 0.72~0.82 | 0.10~0.50 | 0.80~1.10 | 0.25~0.40 | – | ≤0.035 | ≤0.025 | ≥980 |
| U76CrRE | 0.71~0.81 | 0.50~0.80 | 0.80~1.10 | 0.25~0.35 | 0.04~0.08 | ≤0.035 | ≤0.025 | ≥1080 |
Common Grades & Standards
- U71Mn: A widely used standard grade for crane rails (e.g., QU70, QU80, QU100, QU120), with QU indicating head width in mm.
- DIN 536: A European standard specifying rail grades (like Grade 1, 2, 3) for varying load capacities.
Manufacturing & Design
- Hot Rolling: The process used to form the rails, resulting in a smooth, durable surface.
- Specialized Shapes: Designed with wide flanges (soles) for stability against vertical and horizontal forces.
GNEE RAIL Supply A Full Range of Crane Rails
In addition to the Chinese standard crane rail, we also provide various types of rail products in the following other national standards.
| Crane Rail Type | Standard | Size | Material | Standard Length |
|---|---|---|---|---|
| QU Series | Chinese YB/T 5055-2014 |
QU70, QU80, QU100, QU120 |
U71Mn, U75V | 12m |
| A Series | German DIN536 |
A45, A55, A65, A75, A100, A120, A150 |
50Mn,U71Mn | 10/12/15m |
| ASCE Series | American ASTM, AREMA |
ASCE25, ASCE40, ASCE60, ASCE75, ASCE85, ASCE90, ASCE115, ASCE136 |
700/900A/1100 | 6-12m, 12-25m |
| UIC Series | International Union of Railways UIC860-0, EN-13674-1 |
UIC50, UIC54, UIC60 | 900A/1100 | 12-25m |
| BS Series | British BS11-1985 |
BS50'O',BS60A,BS60R, BS75A,BS75R,BS80A, BS100A,BS113A |
700/900A | 8-25m |
| JIS Series | Japanese JIS E1103/1101 |
15kg, 22kg, 30A, 37A, 50N, CR73, CR100 |
According to JIS | 9-10m |
| AS Series | Australian AS 1085 |
31kg, 41kg, 47kg, 50kg, 53kg, 60kg, 66kg, 68kg, 73kg, 86kg, 89kg |
900A/1100 | 8-25m |
| ISCOR Series | South African ISCOR |
15kg, 22kg, 30kg, 40kg, 48kg, 57kg |
700/900A | 9-25m |
Since 2008, GNEE RAIL has been supplying steel rails of different grades for more than 18 years, steel rails from GNEE is highly recommened in China and abroad.Wtih cutting edge equipment, GNEE produces high quality steel rails that meet with requirements of most countries. Standard rail, head hardened rail, heavy rail,light rail,crane rail and other types are all available here, as one of the China main rail supplier, GNEE RAIL has been working on supplying economical green railway products all over the world.
| Classification | Height(mm) | Head (mm) | Bottom (mm) | Thick(mm) | Weight (kg/m) | |
| Light Rail | 8 KG/M | 65 | 25 | 54 | 7 | 8.42 |
| 9 KG/M | 63.5 | 32.1 | 63.5 | 5.9 | 8.94 | |
| 12 KG/M | 69.85 | 38.1 | 69.85 | 7.54 | 12.2 | |
| 15 KG/M | 79.37 | 42.86 | 79.37 | 8.33 | 15.2 | |
| 18 KG/M | 80 | 40 | 80 | 10 | 18.06 | |
| 22 KG/M | 93.66 | 50.8 | 93.66 | 10.72 | 22.3 | |
| 24 KG/M | 107 | 51 | 90 | 10.9 | 24.46 | |
| 30 KG/M | 107.95 | 60.33 | 107.95 | 12.3 | 30.1 | |
| Heavy Rail | 38 KG/M | 134 | 68 | 114 | 13 | 38.733 |
| 43 KG/M | 140 | 70 | 114 | 14.5 | 44.653 | |
| 45 KG/M | 145 | 67 | 126 | 14.5 | 45.546 | |
| 50 KG/M | 152 | 70 | 132 | 15.5 | 51.514 | |
| 60 KG/M | 176 | 73 | 150 | 16.5 | 60.64 | |
