What is the weight of a QU100 rail per meter?
The standard weight of a QU100 crane rail per meter is 88.96 kg, as defined under the Chinese YB/T5055-2014 standard for crane rails. This figure is widely recognized across industry references and technical documentation, serving as the baseline for load calculation, structural design, and procurement planning for heavy-duty crane track systems. The 88.96 kg/m weight corresponds to a cross-sectional area of 113.32 cm², which gives the rail its high load-bearing capacity for heavy lifting and material handling applications.
-
QU100 Rail Specification Overview
As a core member of the GB crane rail series, the QU100 rail is engineered for heavy-duty crane operations, positioned between the QU80 and QU120 models in the QU product range. It is manufactured in compliance with YB/T5055-2014, the current industry standard that replaces the older YB/T5055-93 version. The default material grade is U71Mn, a high-strength manganese steel that delivers a tensile strength of at least 880 MPa, a yield strength of no less than 390 MPa, and an elongation rate of 9% or higher, with a delivery hardness of at least 260 HBW. For projects requiring higher strength, U75V steel with a minimum tensile strength of 980 MPa is available upon request.
| 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 |
The standard delivery length for QU100 rail is 12 meters, with custom length options ranging from 6 meters to 12.5 meters available to suit specific project layouts. Standard rails are supplied without pre-drilled holes, and custom drilling, end chamfering, end milling, and weld preparation can be performed according to customer drawings. The rail is designed to support crane systems with a load capacity of 100 to 125 tons, making it a standard choice for heavy bridge cranes, gantry cranes, and port handling equipment.
GNEE RAILWAY RAILWAY supplies QU100 rails with full traceable quality documentation, including Mill Test Certificates conforming to EN 10204 Type 3.1, and supports third-party inspection arrangements to ensure specification compliance.
Contact GNEE RAILWAY RAILWAY for detailed QU100 rail specification sheets and customized solution recommendations.
-
QU100 Rail Dimensions and Structural Design
The QU100 rail dimensions follow a standardized profile optimized for heavy wheel loads and repeated impact from crane start-stop cycles. Key dimensional parameters include a head width (flat top section) of 100 mm, a total rail height of 150 mm, a base width of 150 mm, and a web thickness of 38 mm. The maximum outer width of the rail head is 108 mm, with 1:10 sloped sides, and the top surface features a 450 mm radius arc for smooth wheel contact. The rail head has a height of 40 mm, with R8 rounded corners at the top and bottom edges, while the web transitions to the head with an R50 arc and to the base with an R30 arc. The base has a height of 30 mm, with 1:4 sloped upper sides, R8 outer corners, and R2 edge fillets, and the neutral axis is located 76 mm below the top of the rail.
| type | weight (kg/m) | material | length (m) |
| QU100 | 88.96 | U71Mn | 12 |
| rail height (mm) | bottom width (mm) | head width (mm) | web thickness (mm) |
| 150 | 150 | 100(108) | 38 |
This dimensional profile gives the QU100 rail excellent resistance to plastic deformation under extreme wheel pressures, superior impact toughness during frequent braking and acceleration cycles, and stable hardness performance that extends the service life of the rail head. The design is compatible with most mainstream European and American crane and railway wheel systems, making it a versatile option for both domestic and international projects.
It is important to note that while the QU100 rail is often compared to the DIN 536 A100 crane rail, the two are not directly interchangeable: the A100 has a base width of 200 mm, 50 mm wider than the QU100, requiring different clamp mounting distances and fastening systems. The QU100 is widely accepted as a cost-effective alternative to the A100 in Asian, Middle Eastern, and South American port expansion projects.
| STANDARD LENGTH: | 12.00m |
| ELONGATION (%): | 8 min. |
| CALCULATED MASS: | 74.3 kg/m |
| Tensile Strength (Min) N/mm2: | 880 |
| YIELD POINT (Min) N/mm2: | 440 |
Request QU100 rail compatible fastening system proposals from GNEE RAILWAY RAILWAY for your project.
GNEE RAILWAY RAILWAY can provide official dimensional drawings and tolerance data for QU100 rails to support engineering review and installation planning, along with compatible fastening accessories to ensure proper fit.
FAQ
Q1: What standard does the QU100 crane rail follow?
The QU100 crane rail complies with the YB/T5055-2014 standard, which is the current Chinese industry standard for crane rails, replacing the earlier YB/T5055-93 version. This standard defines the dimensional tolerances, mechanical properties, chemical composition, and testing requirements for QU series crane rails including QU70, QU80, QU100, and QU120.
Q2: What material grades are available for QU100 rail?
The default material for QU100 rail is U71Mn steel, which provides a minimum tensile strength of 880 MPa, a minimum yield strength of 390 MPa, and a delivery hardness of at least 260 HBW, offering excellent toughness and wear resistance for heavy-duty applications. For projects requiring higher strength, U75V steel with a minimum tensile strength of 980 MPa can be supplied upon custom request.
Q3: Can QU100 rail directly replace DIN 536 A100 rail?
No, QU100 rail cannot directly replace DIN 536 A100 rail without adjusting the fastening system, as the two profiles have different base widths: the A100 has a 200 mm base while the QU100 has a 150 mm base, a difference of 50 mm. When replacing A100 with QU100, compatible forged adjustable rail clamps and 150 mm base width rubber pads must be used to ensure proper installation.
Q4: What are the standard and custom length options for QU100 rail?
The standard stock length for QU100 rail is 12 meters, which is the most commonly used length for most crane track installations. Custom lengths ranging from 6 meters to 12.5 meters are available to accommodate specific project layouts, including common intermediate lengths such as 9 m, 9.5 m, 10 m, 10.5 m, 11 m, and 11.5 m.
Q5: What types of custom processing are available for QU100 rail?
Available custom processing for QU100 rail includes custom drilling patterns, end chamfering, end face milling for smooth joints, cold or hot bending for curved track sections, 45-degree miter cuts, special end preparation for welded joints, and high-precision butt joint groove machining with tolerances as tight as 0.3 mm. Surface treatments such as sandblasting, painting, and hot-dip galvanizing are also available upon request.