12 LB ASCE Rail
12 lb ASCE (American Society of Civil Engineers) Rail yog ib hom kev tsheb ciav hlau siv hauv kev tsim kho tsheb ciav hlau. Qhov "12 lb" qhia qhov hnyav ntawm txoj kev tsheb ciav hlau ib yard, nrog rau ib lub yard sib npaug ntawm kwv yees li 0.9144 meters. Qhov kev tsheb ciav hlau no yog qhov hnyav thiab feem ntau yog ua haujlwm hauv lub teeb lub luag haujlwm lossis cov cuab yeej cuab tam kev tsheb ciav hlau.
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12 LB ASCE Rail Specifications
ASCE rails ua raws li cov qauv tsim los ntawm American Society of Civil Engineers, kom ntseeg tau tias muaj kev sib raug zoo thiab kev sib raug zoo hauv kev lag luam railway. Cov kev qhia tshwj xeeb suav nrog ntau qhov ntev, suav nrog kev tsheb ciav hlau qhov siab, lub hauv paus dav, lub taub hau dav, thiab qhov hnyav tag nrho ntawm ib lub vaj.
| Hom | Qhov Loj (mm) | Qhov hnyav (kg / m) | Txuj | |||
|---|---|---|---|---|---|---|
| Lub taub hau | Qhov siab | Puag | Lub xub pwg | |||
| ASCE 12 LB | 25.4 | 50.8 | 50.8 | 5.95 | ASTM A1 | |