QU70 Rail
Product Overview
The QU70 Crane Rail is a high-strength, heavy-duty steel rail designed specifically for crane systems in demanding industrial environments. Crafted from U71Mn steel (a high-carbon, medium-manganese alloy), this rail offers exceptional load-bearing capacity, wear resistance, and stability. With a weight of 52.8 kg/m and dimensions optimized for crane operations, the Qu70 rail ensures smooth and safe movement of cranes, even under extreme loads.
Key features
Rail height: 120mm ; base width: 120mm
Web thickness: 28mm; head width: 70mm.
Material:
U71Mn High-Strength Rail Steel (default): Tensile strength ≥880MPa, hardness ≥260HBW, ideal for heavy freight and high-speed applications.
Key Specifications:
Profile: Symmetrical wide-flange design (52.8kg/m)
Extreme Load-Bearing Capacity
Supports axle loads up to 30 tons, ideal for container cranes and heavy machinery.
Reinforced head and web design prevents deformation under cyclic stress.
Corrosion & Wear Resistance
Zinc-coated or thermal-sprayed aluminum (TSA) options for harsh environments (coastal/chemical plants).
Surface hardness ≥300 HB reduces wear rate vs. standard rails.
Precision Manufacturing
Strict tolerance control (±0.5mm in height/width).
Pre-drilled holes available for fast bolt-on installation.
Applications
Port & Shipyard Cranes
Seamlessly integrates with RTG cranes, STS cranes, and rail-mounted gantries.
Steel Mills & Foundries
Handles molten metal transfer cars and slag pot carriers (temperature resistance up to 150°C).
Heavy Machinery Workshops
Used in rolling mill equipment and large assembly line transporters.
Warehouse Logistics
Supports automated guided vehicles (AGVs) in mega distribution centers.
Material Composition:
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| U71Mn | Mechanical Property | Chemical Composition | ||||||||||||
| Yield strength | Tensile strength | Elongation | Hardness | C | Si | Mn | S | P | Cr | Ni | Cu | |||
| MPa | kg/mm² | MPa | kg/mm² | min | HB | ≤ | ≤ | ≤ | ≤ | ≤ | ||||
| ≥880 | 9% | 0.65-0.76 | 0.15-0.35 | 1.10-1.40 | 0.030 | 0.030 | 0.25 | 0.25 | 0.25 | |||||
Why Choose Us?
As a leading crane rail Supplier in China, we use localized manufacturing expertise to offer competitive pricing and rapid delivery. Our Qu70 crane rail is trusted globally for its consistent quality, safety, and we have more than 15 years experience focused on steel rails.
Explore our full range of steel rails solutions and request a quote today. Partner with us for reliable, high-performance rails that drive efficiency in your operations.