100 ARA‑A rail
Product Overview
100 ARA‑A rail is a North‑American ARA profile with an approximate mass of 100 lb/yd, commonly specified for mainline track and heavy-duty yard rails. Offered in standard 39 ft stock with mill drilling options and joint bar compatibility. Ideal for heavy freight and high-axle-load operations.
Technical specifications
| Designation | 100 ARA‑A (100 lb/yd) |
| Weight | ≈ 100 lb/yd (≈ 49.9 kg/m) |
| Overall height | ≈ 152.4 mm (6″) |
| Head width | ≈ 69.85 mm (2‑3/4″) |
| Base width | ≈ 139.7 mm (5‑1/2″) |
| Web thickness | ≈ 14.29 mm (9/16″) |
| Standard stock length | 39 ft (cut-to-order available) |
| Common uses | Mainline, heavy yard, industrial sidings |
| Compatibility | Standard ARA/AREMA joint bars, typical rail‑shoe/clamp sizes for 100 lb section |
Primary applications
Heavy-freight mainline track — used where high axle loads and long freight trains demand a robust section with long life.
Freight yard and classification tracks — stands up to heavy shunting, concentrated wheel loads, and frequent braking.
Industrial sidings & spurs — steelworks, chemical plants, and heavy manufacturing where loads and impact are common.
Ports, terminals & intermodal yards — handles concentrated loads from wagons during loading/unloading and frequent starts/stops.
Bulk-commodity lines (mining/aggregates) — suitable for heavy tonnage, long trains, and harsh operating conditions.
Installation & handling notes
- Store on level cribbing to avoid bending—keep protected from corrosive environments.
- Follow mill drilling drawings for bolt pattern and joint bar preparation.
- Welding/flash-butt procedures should be performed by certified rail welder per client standard.
- Consult local track engineer for fastening systems and sleeper spacing.
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Faqs
Q : Can you cut to non-standard lengths?
A — Yes — we offer cut‑to‑length and drilling services. Minimum quantities may apply.
Q : Do you supply suited joint bars and clamps?
A — Yes — we can quote compatible joint bars, rail clamps and other accessories to match the 100 lb section.