U71Mn U75V QU120 Crane Heavy Rail

Oct 29, 2025 Leave a message

QU120 crane heavy rail is a high-strength rail designed for ultra-heavy-duty crane operations, commonly used in port gantry cranes, shipyard gantry systems, steel mill cranes, and large logistics terminals. As one of the strongest load-bearing models in the QU series, it features exceptional wear resistance and impact toughness. GNEE RAIL supplies the full range of QU series crane rails (QU70, QU80, QU100, QU120) and matching fastening systems such as rail clips, spikes, bolts, fish plates, and base plates to ensure safe and efficient rail operation.

 

crane rail
Classification SIZE(mm) theoretical weight
height bottom width head width waist depth
Crane rail QU70 120 120 70 28 52.8
QU80 130 130 80 32 63.69
QU100 150 150 100 38 88.96
QU120 170 170 120 44 118.1

 

The QU120 crane rail is manufactured from premium U71Mn or U75V carbon-manganese steel, with a height of 170mm, head width of 120mm, base width of 170mm, and web thickness of 24mm, weighing 118.1kg/m. Precision hot rolling and normalizing processes ensure high yield strength and superior fatigue resistance, making it suitable for long-term high-frequency heavy-load operations.

 

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

 

QU120 crane rail is mainly used in crane industry. QU120 rail can be also used for large-scale projects, terminal hoisting containers, and laying of transportation lines for large machinery and equipment etc.

 

GNEE RAIL is a leading railroad track and crane rail supplier in China. Customers from domestic and abroad can choose from a complete range of rails. Our products such as QU70 crane rail, A100 crane rail, 90lbs rail, ASCE rail, 115RE rail, 136RE rail, UIC rail, BS rail, etc. are well accepted worldwide. Other track materials including railway fasteners and crane rail accessories are provided according to the clients' requests.

 

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