Crane rails, railway rail and square steel. The top of the rail is convex, and the bottom is a plate with a certain width, which increases the contact surface with the foundation. The cross section of the track is mostly zigzag, with good bending strength. Square steel can be regarded as the flat top rail, because of the large wear of the wheel, generally used only for the small weight, slow speed, the work less frequent crane.
Steel rail usually consists of carbon and manganese steel (C=015% ~ 018%, Mn=016% ~ 115%). The typical material of crane track is U71Mn steel.
| 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 |
Length of qU crane rail
- The standard length of rail is 9, 9.5, 10, 11, 11.5, 12, or 12.5m.
- A certain ratio of variable size of rails that are 4m to 8.9m long can be provided after the supply and requisitioning parties reach an agreement and note it in the contract. When calculating weight of rails, upgrade every 100mm.
- The allowable deviation of rail length is ±500mm.
| Rail Type | 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 | ||||||
Other specifications of crane rails
- 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.
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.
