BS90A rAIL
BS90A rail, also known as the 45E1 rail profile, is a flat-bottom steel rail with a nominal mass of 45.11 kg/m (approximately 90 lb/yd). BS90A features a 142.88 mm rail height, 127.00 mm base width, 66.67 mm head width, and 13.89 mm web thickness, providing a balanced combination of vertical stiffness, lateral stability, and wear resistance.
| British Standard | Head Width (mm) | Rail Height (mm) | Base Width (mm) | Waist Thickness (mm) | Nominal Weight (kg/m) | Material | Lenght (m) |
|---|---|---|---|---|---|---|---|
| BS113A | 69.85 | 158.75 | 139.7 | 20 | 56.398 | 900A | 8-25 |
| BS110A | 69.85 | 152.4 | 133.35 | 15.08 | 50.182 | 900A | 8-25 |
| BS90A | 66.67 | 142.88 | 127 | 13.89 | 45.099 | 900A | 8-25 |
| BS80A | 63.5 | 133.35 | 117.47 | 13.1 | 39.761 | 900A | 8-25 |
| BS75A | 61.91 | 128.59 | 114.3 | 12.7 | 37.455 | 900A | 8-25 |
| BS70A | 60.32 | 123.82 | 111.12 | 12.3 | 34.807 | 900A | 8-25 |
| BS60A | 57.15 | 114.3 | 109.54 | 11.11 | 30.618 | 900A | 6-18 |
| BS80R | 63.5 | 133.85 | 127 | 13.49 | 39.374 | 900A | 8-25 |
| BS75R | 61.91 | 128.59 | 122.24 | 13.1 | 37.041 | 900A | 8-25 |
| BS60R | 57.15 | 114.3 | 109.54 | 11.11 | 29.822 | 700 | 6-18 |
| BS50 O | 52.39 | 100.01 | 100.01 | 10.32 | 24.833 | 700 | 6-18 |
The 45E1 / BS90A profile is specified under EN 13674-4, while BS90A is also associated with the British Standard rail designation BS 11. Depending on project requirements, GNEE RAILWAY RAILWAYL can supply BS90A rails in different rail steel grades, including 900A, 700, R260, and R350HT, subject to the applicable manufacturing and inspection requirements.
BS90A rail is commonly considered for regional and branch railway lines, urban transit and metro systems, mining railways, port and logistics tracks, and industrial rail applications, including heavy-duty track and crane rail installations where the required rail profile, steel grade, load conditions, and applicable standard are specified by the project.
GNEE RAILWAY RAILWAYL supplies BS90A / 45E1 steel rail with multiple steel grade options and project-specific technical support. To receive an accurate quotation, please provide the required standard, steel grade, rail length, order quantity, delivery destination, and inspection or certification requirements. GNEE RAILWAY RAILWAYL will review the specifications and confirm the suitable rail configuration and supply terms for your project.
FAQ
Q1: What is the relationship between BS90A and 45E1 rail?
A: BS90A is a traditional British rail designation, while 45E1 is the European profile designation under EN 13674-4.
Q2: What steel grades are available for BS90A rail?
A: GNEE RAILWAY RAILWAYL can supply BS90A / 45E1 rail in grades including 900A, 700, R260, and R350HT, subject to the applicable specification. Grade selection depends on axle load, traffic conditions, curve radius, and wear requirements.
Q3: Where is BS90A rail used?
A: BS90A / 45E1 rail is commonly used for regional railways, metro systems, mining tracks, industrial sidings, port tracks, and crane rail applications. The actual axle-load capacity depends on the complete track system and project design.
Q4: Can GNEE RAILWAY RAILWAYL supply custom BS90A rail?
A: Yes. GNEE RAILWAY RAILWAYL can supply project-specific lengths, custom cutting, pre-drilling, and matching fishplates, bolts, clips, and rubber rail pads according to customer requirements.
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