100 ARA‑B rail
Product Overview
100 ARA‑B rail is a variant of the 100‑lb ARA family with geometry optimised for certain fastening systems and joint bar patterns. It offers the same nominal mass (≈100 lb/yd) but with small differences in head and base that affect clip/shoe seating and joint-bar choice. Available in standard 39 ft stock and cut‑to‑length options.
Typical technical specifications
| Designation | 100 ARA‑B (100 lb/yd) |
| Weight | ≈ 100 lb/yd (≈ 49.9 kg/m) |
| Overall height | ≈ 146.27mm |
| Head width | 67.47mm |
| Base width | 130.57mm |
| Web thickness | 14.29mm |
| Standard stock length | 12m (cut-to-order available) |
| Common uses | Mainline, heavy yard, locations requiring specific fastener seating |
| Compatibility | Compatible with certain ARA/AREMA joint bars; verify joint-bar part numbers before ordering. |
Material Properties
Typical applications
Heavy-freight mainline sections requiring high bending strength and fatigue resistance.
Freight yards & classification tracks with concentrated wheel loads and frequent shunting.
Ports, terminals & intermodal yards subject to repeated loading cycles.
Turnouts, frogs & crossing panels where clip seating and joint geometry are critical.
Industrial spurs & mine/aggregate lines — robust section for heavy tonnage.
Purchase options & ordering flow
Request quote — enter quantity, length, destination and any required mill options (drilling, head-hardening).
Technical review — our rail specialists confirm profile/drilling compatibility and issue a final pro-forma.
Sample & CAD — request a sample piece or receive DWG/STEP files for approval (available after NDA if required).
Order & inspection — MTCs attached; third-party inspection available upon request.
Delivery & support — export packing, lift planning and on-site handling guidance provided.
Explore our full range of steel rails solutions and request a quote today. Partner with us for reliable, high-performance rails that drive efficiency in your operations.
Faqs
Q :What’s the difference between 100 ARA-A and 100 ARA-B?
A — Both are nominally 100 lb/yd sections. The B variant has subtle head/base geometry changes that can affect clip seating and joint-bar fit. We always supply the mill drawing and confirm clip/rail-shoe compatibility before supply.
Q : Can you cut to non-standard lengths or supply mill-drilled rails?
A — Yes — cut-to-length and mill-drilled options are standard services. State the required length and drilling option in your RFQ.
Q：Do you supply fish plates, clips and anchors too?
A —Yes — we can quote matched fish plates, rail clamp sets and any other accessories kits to suit the 100 ARA-B rails.