Skytrain GB / T 11264-1989
| Rail Model (kg / m) | Cross-sectional size (mm) | End portion size (mm) | Cross-sectional area (cm ^ 2) | Theoretical Weight (kg / m) | Center of gravity distance c (cm) | Center of gravity distance e (cm) | Moment of inertia | Section modulus | Radius of gyration | |||||||||||
| A high rail | Bottom width B | Head width C | Head height D | Waist high E | Waist thickness t | R1 | r | R | Bottom high F | S1 | S2 | φ | I \ cm ^ 4 | Z \ cm ^ 3 | i \ cm | |||||
| - | QGDA | QGDB | QGDC | QGDD | QGDE | QGXT | QGDR1 | QGXR | - | - | - | - | - | - | - | - | - | - | - | - |
| 9 | 63.5 | 63.5 | 32.1 | 17.48 | 35.72 | 5.9 | 4.76 | 6.35 | 304.8 | 10.3 | 50.8 | 101.6 | 16 | 11.39 | 8.91 | 3.09 | 3.26 | 62.41 | 19.1 | 2.33 |
| 12 | 69.85 | 69.35 | 38.1 | 19.85 | 37.7 | 7.54 | 6.35 | 6.35 | 304.8 | 12.3 | 50.8 | 101.6 | 16 | 15.54 | 12.2 | 3.4 | 3.59 | 98.82 | 27.6 | 2.51 |
| 15 | 79.37 | 79.37 | 42.86 | 22.22 | 43.65 | 8.33 | 6.35 | 7.94 | 304.8 | 13.5 | 50.8 | 101.6 | 20 | 19.33 | 15.2 | 3.89 | 4.05 | 156.1 | 38.6 | 2.83 |
| 22 | 93.66 | 93.66 | 50.8 | 26.98 | 50 | 10.72 | 6.35 | 7.94 | 304.8 | 6.67 | 63.5 | 127 | 24 | 28.39 | 22.3 | 4.52 | 4.85 | 339 | 69.6 | 3.45 |
| 30 | 107.95 | 107.95 | 60.33 | 30.95 | 17.55 | 12.3 | 6.35 | 7.94 | 304.8 | 19.45 | 60.5 | 127 | 24 | 38.32 | 30.1 | 5.21 | 5.59 | 606 | 108 | 3.98 |
|
Steel type |
Trademark |
Model |
Chemical composition (%) |
Mechanical properties |
|||||||
|
/ Kg · m-1 |
C (carbon) |
Si (silicon) |
Mn (manganese) |
P (phosphorus) |
S (sulfur) |
Cu (copper) |
Tensile strength |
Hardness |
Drop test |
||
|
σb / MPa |
HB |
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|
Carbon Steel |
50Q |
≤ 12 |
0.35 to 0.60 |
0.15 to 0.35 |
≥ 0.40 |
≤ 0.045 |
≤ 0.050 |
≤ 0.40 |
- |
- |
- |
|
55Q |
≤ 12 |
0.50 to 0.60 |
0.15 to 0.35 |
0.60 to 0.90 |
≤ 0.045 |
≤ 0.050 |
≤ 0.40 |
- |
- |
- |
|
|
15 ~ 30 |
0.50 to 0.60 |
0.15 to 0.35 |
0.60 to 0.90 |
≤ 0.045 |
≤ 0.050 |
≤ 0.40 |
≥ 685 |
≥ 197 |
Continuously without cracking (hammer high 2.9m) |
||
|
Low-alloy steel |
45SiMnP |
≤ 12 |
0.35 to 0.55 |
0.50 to 0.80 |
0.60 to 1.00 |
≤ 0.12 |
≤ 0.050 |
≤ 0.40 |
- |
- |
- |
|
50SiMnP |
≤ 12 |
0.45 to 0.58 |
0.50 to 0.80 |
0.60 to 1.00 |
≤ 0.12 |
≤ 0.050 |
≤ 0.40 |
- |
- |
- |
|
|
15 ~ 30 |
0.45 to 0.58 |
0.50 to 0.80 |
0.60 to 1.00 |
≤ 0.12 |
≤ 0.050 |
≤ 0.40 |
≥ 685 |
≥ 197 |
Continuously without cracking (Hammerfall High: 22kg / m to 4.4m, 30kg / m to 5.0m) |
||
|
36CuCrP |
15 ~ 30 |
0.31 to 0.42 |
0.50 to 0.80 |
0.60 to 1.00 |
0.02-0.06 |
≤ 0.040 |
0.10 to 0.30 |
≥ 785 |
≥ 220 |
||
|
Cr0.80 ~ 1.20 |
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Note:
1 of the table is based on theoretical weight density of 7.85g/cm ^ 3 calculations.
(2) the length dimension series: 8.0m, 9.0m, 10.0m.
