Rail
Using advanced technologies, Rocky Mountain Steel produces the highest quality standard carbon and high-strength, deep head-hardened rail available—and is the only domestic producer of DHH 390, DHH390s (micro-alloy), HCP 410 and OCP425 rail.
Rail Products
The Rail Mill consistently exceeds stringent AREMA specifications for premium head-hardened rail, making our products the hardest rails, with the greatest depth of hardness, produced anywhere.
The facility produces both standard carbon, and head-hardened grades of American Railway Engineering and Maintenance-of-Way Association (AREMA), in sizes 115, 119, 132, 133, 136, and 141 lb./yd
The facility also produces International Union of Railways rail in 54 to 60kg/m, in lengths ranging from 39 ft. to 80 ft. (12m to 24m), continuously welded strings.
| Section | Head Width (in.) | Height (in.) | Web (in.) | Base (in.) |
|---|---|---|---|---|
115 RE | 2 23/32 | 6 5/8 | 5/8 | 5 1/2 |
119 RE | 2 21/32 | 6 13/16 | 5/8 | 5 1/2 |
132 RE | 3 | 7 1/8 | 21/32 | 6 |
133 RE | 3 | 7 1/16 | 11/16 | 6 |
136 RE | 2 15/16 | 7 5/16 | 11/16 | 6 |
141 RE | 3 1/16 | 7 7/16 | 11/16 | 6 |
| (mm) | (mm) | (mm) | (mm) | |
54 UIC | 72.2 | 159 | 16 | 140 |
60 UIC | 74.3 | 172 | 16.9 | 150 |
Rocky Mountain Steel Rail Ultrasonic Rail Inspection (UT) System
The Rocky Mountain Steel Rail Mill’s industry-leading Ultrasonic Rail Inspection (UT) System combines the latest in ultrasonic and computer technology. The 64-element Array produces 32 virtual probes in an overlapping configuration for optimum, no-gap inspection coverage.
The UT system’s rolling search unit provides excellent coupling efficiency, and readily conforms to the inspection surfaces.
Top Head Inspection
The Rail Mill's UT system utilizes phased array technology, detecting defects oriented parallel to the top surface of the head at depths of 0.250” to 1.250”.
Side Head Inspection
Using three transducers with 50% overlapping coverage, the UT system detects defects oriented parallel to the side head within 1.125” on either side of the vertical centerline.
Web Inspection
Detects defects oriented parallel to the web surface. The system's transducer configuration minimizes sources of false defect indications.
Base Inspection
The UT system detects base surface cracks and seams and subsurface defects located within 0.750” on either side of the base centerline.
Through-rail inspection
Detects defects in the head, web and base, oriented parallel to the top head of the rail.