Product Name

Bridge Angle Steel (Heavy-Duty L-Section for Bridgework)

Introduction

Bridge Angle Steel are robust equal- or unequal-leg L-shaped steel members designed specifically for bridge applications. Compared with general-purpose angles, bridge angles are specified with thicker legs, tighter tolerances, fatigue-conscious detailing and durable corrosion protection so they can serve as bracing, splice plates, stringer attachments, guardrail supports, stiffeners and secondary framing in pedestrian, highway and railway bridges.

Typical Materials & Grades

Structural carbon and HSLA steels: S355 / Q345 / A572 Gr.50 (common choices).

Bridge and marine grades: A709 / AH36 / DH36 or equivalent where classification, toughness or marine resistance is required.

Weathering steel (Corten) or stainless (304/316) for special environments.

Standard supply backed by Mill Test Certificates (MTC).

Typical Geometry & Ranges

Leg lengths (a × b): 40 mm – 400 mm (equal or unequal).

Thickness (t): 6 mm – 40 mm (heavy-duty ranges for bridge use).

Lengths: Standard stock 6 m / 12 m; cut-to-length, spliced or pre-assembled kits for long runs.

Mass per metre: varies by size (e.g., 100×100×10 mm ≈ 78.5 kg/m - calculate with side²×0.00785).

Tolerances: contractor/bridge-spec tolerances; tighter dimensional control available for critical nodes.

Key Features & Advantages

Fatigue-conscious detailing: rounded edges, controlled hole radii and smooth weld transitions reduce stress concentrations under cyclic traffic and wind loads.

High local bearing area: wide or unequal legs provide generous plate bearing area for bolted splice plates and gussets.

Robust connection faces: flat, thick legs simplify bolt patterns, splice fabrication and welding of stiffeners.

Durable protection: hot-dip galvanizing, duplex (zinc + paint) systems or marine-grade coatings prolong life in harsh exposures.

Fabrication flexibility: rolled stock or fabricated (plate-welded) angles available to meet non-standard sizes or higher thicknesses.

Typical Bridge Applications

Bracing angles in towers and trusses.

Gusset plates, splice plates and connection angles for main girders.

Deck-edge supports, parapet and guardrail mountings.

Stiffening angles around web openings and service cutouts.

Retrofit strengthening plates and temporary works (falsework) components.

Fabrication & Value-Added Services

Pre-drilling / CNC punching: match-drilled bolt patterns and splice hole kits for rapid field erection.

Notching & coping: accurate copes for bolted/welded connections and splice fit-up.

Welded assemblies: pre-welded gussets, doublers and reinforced nodes.

Cut-to-length & cambering: factory camber or pre-formed angles for special geometries.

Surface treatment: shot-blast + primer, hot-dip galvanize, epoxy/PU topcoats, or duplex systems per spec.

Kitting & sequencing: labelled erection packs (by span/bay) with bolts, washers and splice plates.

Quality Assurance & Testing

Material certification: MTCs with chemical & mechanical test reports.

Welding controls: WPS/PQR, welder qualification and weld records for any shop welds.

NDT: MT/UT/RT available for critical welds or when required by spec.

Dimensional checks: leg length, squareness, hole position, straightness and flatness inspection.

Coating inspection: film thickness, adhesion, salt-spray or holiday testing as required.

Packaging & Delivery

Bundling: strapped bundles with timber/polymer spacers to avoid abrasion.

Protection: end/corner guards, VCI film or temporary oil for storage; crating for painted or precision packs.

Marking: part ID, bay/position number, heat no. and orientation on each piece.

Logistics: pieces sized to transport/crane limits; spliced deliveries and on-site erection kits available.

Ordering Information - What We Need

To provide an accurate proposal and fabrication drawing, please supply:

Angle size (a × b × t) or required section properties (moment/axial capacity).

Intended function in bridge (brace, splice, gusset, deck edge, stiffener).

Material grade and any toughness/low-temperature requirements.

Bolt size/pattern or splice details, and whether holes should be shop-drilled.

Surface protection preference (galvanize, paint, duplex) and any class/owner coating spec.

Quantity, lengths, transport/crane limits and desired lead time.

Any inspection/witness requirements (third-party or class society).

Why Choose Our Bridge Angle Steel?

Our bridge angles are specified and fabricated with fatigue-aware detailing, shop-prepared bolt patterns, and industry-standard corrosion protection to minimize field work and maximize in-service life. Send your member details or typical connection drawing and we'll recommend rolled vs fabricated options, provide section properties, a shop drawing and a competitive quote.

Hot Tags: bridge angle steel, China bridge angle steel manufacturers, suppliers, factory