90 lbs rail or 90-pound rail is defined by the Association of American Railroads (or ARA). The ARA sets the standard from 60 lb/yd (4.96 kg/m) in increments of 10 lb/yd (4.96 kg/m) and from 60 lb/yd to 100 lb/yd (29.8 to 49.6 kg/m).
90 pound rail is also a profile recommended by AREA (American Railroad Engineering Association). This is a type of rail sold mainly in the North American market.
As a specialist rail supplier, Kingrail Parts offers 90 lb rails.
Specification:
Type: Heavy Rail
Material: 900A/1100
Weight: 44.65kg/meter
Length: 12-25m
| Rail Type | Hight width (mm) | Base width (mm) | Head width (mm) | Web thickness (mm) | Weight Kg/m | Material |
| 90 ARA-A | 142.88 | 130.18 | 65.09 | 14.29 | 44.65 | 900A/1100 |
Size:
| Rail Type | 90 RA |
| Section Number | 9020 |
| Nominal Weight | 90 lbs/yd (44.65kg/m) |
| Standard Length | 39’ |
| Area in2 | 8.82 |
| Section Modulus in3 | Head: 12.6 Base: 15.2 |
| Moment of Inertia in4 | 38.7 |
Drawing:
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