Product Name

Bow Steel (Curved / Arched Steel Members)

Introduction

Bow Steel refers to pre-formed, curved or arched steel members - typically tubes, bent bars or pressed sections - produced to precise radii for use as structural hoops, bows, ribs and frame elements. These curved members are widely used in awnings, trailers and tarp bows, greenhouse hoops, roof crowns, canopies, shelving arches and fitness/utility equipment where a consistent arc and high strength are required. Kampco Steel ProductsDouble Tuff

Typical Specifications

Base materials: Mild/carbon steel (Q235 / S235 / A36), cold-formed low-alloy steels, stainless (304/316) or galvanized steel tube.

Forms: Round tube, oval/elliptical tube, rectangular section, flat bar bent to arc, or custom pressed profile.

Outer diameter / section: Ø12 – Ø76 mm (tube) typical; custom up to Ø219 mm.

Wall thickness: 0.8 – 6.0 mm typical (thin hoops to heavy structural bows).

Radius / Rise: Custom radii from a few centimeters up to multi-meter crowns; arc length and rise per customer drawing.

Lengths: Standard segments 0.5 – 6 m; full bows supplied as single piece or multi-piece spliceable assemblies.

Manufacture: Mandrel bending, roll bending, press-forming or CNC tube bending to control springback and maintain roundness.

Tolerances: Radius ±1–5 mm (depending on size), OD/section ±0.5 mm; straightness/flatness per drawing.

Surface finish / protection: Mill, hot-dip galvanized, electrogalvanized, powder coat, primer + paint, or stainless bright finish.

Features & Advantages

Precision Curving: Mandrel and CNC bending deliver consistent radii with minimal ovality or local thinning.

High Structural Capacity: Choice of tube size and wall thickness provides required bending strength and fatigue life for cyclic loads.

Corrosion Options: Galvanized or stainless choices for long life in outdoor and marine environments.

Easy Integration: Pre-drilled mounting holes, welded brackets or factory swaged ends available for fast installation.

Versatile Manufacturing: Able to supply single-piece bows, spliced longer bows, or modular bolt-together systems for transport and installation.

Optional Spring Action: When produced from spring grades, bow members can be specified to provide controlled flex (useful for fitness devices and some canopy systems). Katy Spring

Typical Applications

Trailer & Tarp Systems: Side-to-side rollover bows, tarp ribs and support hoops. Double Tuff

Roof Crowns & Awnings: Continuous crown tubes or segmented bows for curved roofing and canopy structures. Kampco Steel Products

Greenhouses & Agricultural Hoops: Garden and commercial greenhouse hoops and shade structures.

Architectural Elements: Decorative arches, arc benches, handrail crowns and canopies.

Recreational & Fitness Gear: Bow springs and curved members for exercise equipment and portable workout devices. Katy Spring

Packaging & Delivery

Bundling: Bows nested by arc and size, separated with foam or timber spacers to prevent abrasion.

End Protection: Plastic/steel end caps and wrapped mounting faces for protection during transit.

Crating: Long or finished bows shipped in wooden crates or on skids with bracing to keep shape.

Lead Time: Typical stock/profile bending 7–20 days; custom radii, splices or value-added work 15–35 days depending on quantity.

Why Choose Our Bow Steel?

Advanced Bending Lines: CNC mandrel and roll-bending equipment control springback and wall thinning for tight tolerances.

Material Flexibility: Mild, alloy and stainless options plus coatings to match load and environmental requirements.

Value-Added Options: Pre-punching, bracket welding, end-forming and finish painting available to deliver ready-to-install parts.

Quality Control: Dimensional check of radius/ovalization, surface inspection and mechanical testing on request.

Ordering Info / Technical Data Needed

Please provide: required material grade, section type (tube/bar), outside dimension and wall thickness, required arc radius or rise and span, length or arc-length, quantity, end-preps (holes/brackets), and surface finish. If the bow is load-bearing, include expected loads and fatigue cycles so we can recommend section and wall thickness.

If you want, I can produce a drawing template and a quick quote - tell me the span, rise (or center radius), OD and wall thickness you need and I'll generate section properties and a manufacturing recommendation.

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