QU70 Rail
The QU70 rail is a specialized heavy – duty rail type, engineered to meet the rigorous demands of industrial and heavy – load transportation systems. As a key component in various applications, it stands out for its unique design and high – quality construction, providing reliable and long – lasting service.
Every rail delivered with traceable quality assurance
QU70 Rail Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Rail Size | QU70 | Rail Type | Crane Rail |
| Standard | YB/T5055-2025 | Material | U71Mn |
| Rail Height | 120 mm | Head Width | 70 mm |
| Bottom Width | 120 mm | Web Thickness | 28 mm |
| Weight | 52.80 kg/m | Length | 12 m or customized |
For custom lengths or higher-strength materials, please contact our team for tailored production solutions.
QU70 Rail Material Strength
The superior qualities of U71Mn steel, which is often used to make QU70 crane rails, are advantageous. High strength, strong wear resistance, and adequate toughness are characteristics of U71Mn steel. It is capable of withstanding the high-stress conditions and frequent hits found in industrial settings, such heavy-haul railroads and crane operations.
| U71Mn | Mechanical Property | Chemical Composition(%) | |||||||||
| Yield strength | Tensile strength | Elongation | Hardness | C | Si | Mn | S | P | |||
| MPa | kg/mm² | MPa | kg/mm² | min | HBW | ≤ | ≤ | ||||
| — | —- | ≥880 | — | 9% | 260 | 0.65-0.76 | 0.15-0.35 | 1.10-1.40 | 0.030 | 0.030 | |
Applications of QU70 Rail
QU70 crane rails’ robust construction and high load – bearing capacity make them essential across multiple industries. Their ability to endure heavy, repetitive loads while maintaining stability ensures seamless operations in even the most demanding environments.
Industrial Cranes
Used in manufacturing plants, steel mills, and warehouses, QU70 crane rails support overhead cranes lifting heavy loads. Their wide head and thick waist handle concentrated forces from crane wheels for safe operation, like in automotive plants assembling heavy vehicle parts.
Port Operations
Crucial for port gantry cranes and container transfer vehicles, QU70 crane rails withstand high-intensity use. In busy international ports, they enable efficient container handling, facilitating global trade and ensuring smooth, uninterrupted terminal operations and logistics efficiency.
Heavy - Haul Railways
Suitable for low-speed, high-load heavy-haul railways, QU70 crane rails carry bulk materials over short–medium distances. Their strength and durability support heavy trains transporting coal, iron ore, construction materials, aggregates, and other industrial commodities.
Glory Rail Custom Processing Services
Manufactured according to YB/T 5055-2025 QU series crane rails (QU70, QU80, QU100, QU120) are ideal for port cranes, overhead cranes, gantry cranes, and heavy-duty industrial applications. We offer tailored processing services to adapt each rail to your installation and project needs.
End machining: Rail ends are chamfered or precision-milled to improve joint fit and eliminate edge damage during wheel transition.
Curved rail forming: Cold or hot bending is applied under controlled stress conditions to achieve stable alignment for curved track sections.
Trolley rail preparation: Short rail sections and matching accessories are prepared for crane trolley systems used in port and heavy-duty handling applications.
Bevel cutting: Non-standard cutting angles, including 45° and project-specific geometries, are produced to suit complex installation layouts.
Surface protection treatment: Sandblasting, painting, or hot-dip galvanizing is applied to improve corrosion resistance in outdoor and marine environments.
Special end fabrication: Rail ends can be manufactured according to drawings for welded joints or custom structural connections.
Based on my extensive engineering experience in rail manufacturing, Glory Rail focuses on delivering precision-engineered crane rail systems designed for demanding industrial applications. Operating under the established YB/T 5055-2025 standard and with ISO 9001 certified quality management, we integrate controlled steel processing and rigorous in-process inspections. This ensures consistent dimensional accuracy, mechanical performance, and long-term operational reliability for all QU series rails, including QU70, QU80, QU100, and QU120
Complete Crane Rail Accessories for QU70 Rail
One-Stop Sourcing, Hassle-Free Installation
As a dedicated supplier of QU-series crane rails, Glory Rail offers not only high-quality QU70 crane rails but also a full range of matching installation accessories — all under strict quality control to ensure perfect compatibility and reliable system performance. Experience the convenience of one-stop procurement and worry‑free installation.
Fishplate (Joint Bar) — Manufactured from Q235B steel with hot‑dip galvanized finish. Designed to connect QU70 rail sections with a precision fit tolerance of +0.3 mm. Creates a gap‑free bolted joint and ensures stable load transfer across rail ends.
Rail Clip — Specifically engineered for QU‑series rail seats. Made from forged 45# steel with a dual anti‑corrosion coating. Available in two configurations: welded type and bolted type. Features an integrated spring washer to minimize vibration transmission between the rail and supporting structure.
High‑Strength Bolt Kits — Grade 8.8 and 10.9 assemblies, manufactured to ISO/GB standards. Finished with Dacromet coating, delivering 500+ hours of salt spray resistance per ASTM B117 — three times more durable than standard bolts. 10.9 grade bolts are required for QU70 rail joints under heavy crane loads; we recommend torque‑tension calibration per ISO 16047 during installation.
Rubber Rail Pad — Installed beneath QU‑series rails. Made from natural rubber blended with nitrile butadiene rubber (NBR) for enhanced oil resistance and reinforced with carbon black. Hardness: 72–80 Shore A. Available in 5mm, 8mm, and 10mm thicknesses. Provides effective load cushioning and noise reduction.
Rail Clamping Plate — Cast from QT400‑18 ductile iron (hot‑dip galvanized, tensile strength ≥400 MPa, elongation ≥18%). Features an arc‑shaped design that precisely matches the QU‑series rail base profile, minimizing stress concentration under heavy‑duty applications.
Thermite Welding Kit for QU Rails — Glory Rail supplies a complete thermite welding system purpose‑built for crane rail installation. Our solution utilizes an exothermic reaction between aluminum and iron oxide to form high‑strength, fatigue‑resistant joints. With reaction temperatures reaching ≥2500°C and weld strength exceeding 95% of the base rail’s tensile strength [10†L9-L10]. No external power source is required, enabling rapid field installation — the preferred jointing method for heavy‑duty crane runways.
QU70 Crane Rail Clamps
QU70 rail clamps are welded-type fasteners designed for QU70 crane rails. The assembly includes a base plate, cover plate, adjusting plate, and T-bolts. The base plate is welded to steel structures or embedded steel plates, while T-bolts seated in the base groove help absorb torsional and shear forces, ensuring secure rail fastening. The clamping distance is adjusted by tightening the cover plate with the adjusting plate.
The plates are made of ductile cast iron or cast steel. Bolts, nuts, and flat washers use Q235 steel, and spring washers are made from 60Mn or 60Si2Mn.
System Integration Notes:
For an optimally performing QU70 runway system, we recommend matching the rail clip selection (welded vs. bolted) to your specific support beam configuration, and pairing the rubber pad thickness with your anticipated crane duty cycle and wheel load conditions. Full torque specifications and installation guides are available upon request.
Quality Assurance & Inspection
All QU series crane rails (QU70, QU80, QU100, QU120) are manufactured to YB/T 5055-2025, using high-strength carbon‑manganese steels such as U71Mn (≥880 MPa tensile strength) or U75V (≥980 MPa tensile strength).
Each rail undergoes the following inspections:
Ultrasonic testing (UT) – according to GB/T 4162
Magnetic particle inspection (MPI) – according to GB/T 15822 series
Dimensional and visual check – straightness tolerances per YB/T 5055
Mill Test Certificate EN 10204 Type 3.1 (manufacturer‘s inspection, no third‑party witness) or Type 3.2 (with third‑party witnessing upon agreement) is available.
Full traceability is ensured by heat/ladle number stamped on each rail end, linking back to the melt and rolling batch.
Third‑party inspection (SGS, BV, TUV) is welcome at any production stage, subject to prior agreement on inspection scope and standards.
Global Shipping & Logistics: Your Partner in Reliable QU Crane Rail Delivery
In Glory Rail, shipments of crane rails are coordinated through established logistics networks to ensure timely delivery to major ports worldwide, supported by flexible transport arrangements tailored to project schedules.
We ship crane rails from China to major industrial ports worldwide, including Rotterdam, Hamburg, Singapore, and other global terminals, via sea, air, or multimodal transport.
Seaworthy Packaging: Rails are coated for corrosion protection and secured with waterproof wrapping and steel strapping for ocean transport stability. Small components such as clamps and bolts are packed separately with reinforced protection.
Supply Chain & Custom Production: With over 20 years of export experience, Glory Rail works with leading steel mills such as Ansteel and Baowu Group, supporting customized rail production including length adjustment and drilling, with direct factory-to-port shipment.
Other Crane Rail for Sale
- DIN536 crane rail: A45, A55, A65, A75, A100, A120, A150.
- ASTM759 crane rail: CR104, CR105, CR135, CR171, CR175.
- ISCR crane rail: ISCR50, ISCR60, ISCR70, ISCR80, ISCR100, ISCR120.
- JIS crane rail: CR73, CR100.
Glory Rail is a professional supplier of railroad tracks and crane rails in China, serving customers both domestically and internationally. We offer a comprehensive range of rail products, including QU70 and A100 crane rails, 90 lbs rails, ASCE rails, 115RE and 136RE rails, as well as UIC and BS rails, all of which are widely recognized in global markets. In addition, we supply railway fasteners and crane rail accessories tailored to customer requirements.