QU70, QU80, QU100, QU120, etc. are sizes of crane rail. QU70 is a specific size of QU crane rail series according to Chinese standard. The number "70" refers to the head width of the crane rail. Thus the QU70 rail head is 70mm wide.
Size: QU70 rail
Material: U71Mn
Weight: 52.8kg/m
Length: 12m (other lengths available as per clients' requirement)
Standard: YB/T5055-93
| Dimension/mm | QU70 | QU80 | QU100 | QU120 |
|---|---|---|---|---|
| b | 70 | 80 | 100 | 118.1 |
| b1 | 76.5 | 87 | 108 | 120 |
| b2 | 120 | 130 | 150 | 129 |
| s | 28 | 32 | 38 | 170 |
| h | 120 | 130 | 150 | 44 |
| h1 | 32.5 | 35 | 40 | 170 |
| h2 | 24 | 26 | 30 | 45 |
| R | 400 | 400 | 450 | 35 |
| R1 | 23 | 26 | 30 | 500 |
| R2 | 38 | 44 | 50 | 34 |
| r | 6 | 8 | 8 | 56 |
| r1 | 6 | 6 | 8 | 8 |
| r2 | 1.5 | 1.5 | 2 | 2 |
QU Crane Rail Dimensions
| Size | Nominal Weight Kg/m | Sectional area/cm2 | y1 cm | y2 cm | Ix Moment of inertia | Iy Moment of inertia | W1= Ix/ y1 | W2= Ix/ y2 | W3= Iy/(b2÷2) |
|---|---|---|---|---|---|---|---|---|---|
| QU70 | 52.80 | 67.30 | 5.93 | 6.07 | 1081.99 | 327.16 | 182.46 | 178.12 | 54.53 |
| QU80 | 63.69 | 81.13 | 6.43 | 6.57 | 1547.40 | 482.39 | 240.56 | 235.52 | 74.21 |
| QU100 | 88.96 | 113.32 | 7.60 | 7.40 | 2864.73 | 940.98 | 376.94 | 387.12 | 125.45 |
| QU120 | 118.10 | 150.44 | 8.43 | 8.57 | 4923.79 | 1694.83 | 584.08 | 574.54 | 199.39 |
Chemical composition & mechanical properties
| Material | C | Si | Mn | P | S | tensile strength kg/mm2(Mpa) |
|---|---|---|---|---|---|---|
| U71Mn | 0.65-0.77 | 0.15-0.35 | 1.10-1.50 | ＜0.040 | ＜0.040 | 90(880) |
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.
