Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of u71mn qu70 overhead crane steel in China, also supports customized service with low price. Please feel free to buy cheap u71mn qu70 overhead crane steel made in China here from our factory.
Product Introduction
GB crane rails are special rails that are tested by non-destructive testing methods such as ultrasonic flaw detection and magnetic particle flaw detection to ensure that there are no hidden defects inside. Strict quality control makes them safe and reliable.
Hardness is closely related to the bearing capacity of the material. The high hardness of QU70 rails enables them to withstand greater wheel pressure and is suitable for heavy cranes. In the heavy industrial field, such as large steel enterprises, cranes that lift heavy goods such as steel billets and steel coils can have wheel pressures of hundreds of kilonewtons or even higher. With the high strength and high bearing capacity brought by high hardness, QU70 rails can safely carry heavy cranes and the heavy objects they lift, ensuring the smooth operation of the crane.
As a high-carbon manganese steel, the higher carbon content in U71Mn is conducive to enhancing the hardness of crane rails. When the rails bear the weight of the crane and heavy objects, they are not easy to deform, ensuring the safe operation of the crane. At the same time, the manganese content in the material improves the comprehensive performance of the rail, extends the service life of the rail, and reduces the subsequent maintenance costs.
Product Specifications
| type | weight(mm) | material | length(m) | ||||
| QU70 | 52.8 | U71Mn | 12 | ||||
| rail height(mm) | bottom width(mm) | head width(mm) | web thickness(mm) | ||||
| 120 | 120 | 70 | 28 | ||||
The QU70 bridge crane steel supplied by GNEE RAIL is made of high-quality U71Mn material. U71Mn is a medium-carbon alloy steel with excellent comprehensive mechanical properties. Its moderate carbon content gives the steel a high strength, and the addition of manganese effectively improves the toughness and hardenability of the steel, so that the QU70 track can still maintain good structural integrity when subjected to frequent heavy pressure and impact of the bridge crane, greatly reducing the risk of deformation and fracture, and ensuring the safe and stable operation of the crane. After testing, the QU70 crane steel made of U71Mn material has a yield strength of ≥880MPa, high tensile strength, and good elongation, which can meet the use requirements in various harsh industrial environments.
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