Round Stainless Steel Tubing (ASTM A554)

Application Compatibility: Direct fit for standard balustrade elbows, post saddles, wall brackets, and 180° rotary tube bending.

Key Engineering & Tolerance Highlights:

• Ovality tolerance: ≤ 0.05mm across all standard diameters.
• High ductility weld seam: withstands 180° mandrel bending without seam splitting.
• Ra surface roughness: ≤ 0.2µm on 600# / 8K mirror polished options.
• Wall thickness uniformity: strictly held within ±0.05mm margin.

Dimensions / Scope:
Φ 6.0 mm – Φ 219.1 mm (0.24" – 8.62" OD)

Wall / Gauge:
0.5 mm – 4.0 mm (±0.05 mm precision control)

Lead Time & MOQ:
15 - 20 Days | MOQ: 1 Metric Ton per Size

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Technical Specifications & Direct Mill Services

Technical Parameter	Factory Specification Data
Material / SKU	ST-A554-RD-SERIES
Manufacturing Standard	ASTM A554
Available Grades	316L, 304, 2205, 201
Profile Form	round
Dimensional Scope	Φ 6.0 mm – Φ 219.1 mm (0.24″ – 8.62″ OD)
Wall & Tolerance	0.5 mm – 4.0 mm (±0.05 mm precision control)
Surface Finishes	180 Satin, 320 Brushed, 600 Mirror, 8K Mirror
Export Length	5800 mm / 6000 mm (20ft) / Custom Laser Cut-to-Length (500–12000mm)
HS Tariff Code	7306.40.00
Export Packaging	Single PE Protective Film Sleeve + Hexagonal Waterproof Bundle + Heavy-Duty Steel Strapping

🏭 SANON Mill Direct Capabilities

Direct manufacturer pricing with full OEM customization and quality assurance for commercial projects:

✂️ Custom Cut-to-Length: Precision factory sawing to job-site dimensions (-0 / +2mm).
📜 Full Traceability: Heat number matched with official EN 10204 3.1 MTR certificates.
🎨 Custom Finishes: 180# Satin, 8K Mirror, and PVD Matte Black / Gold titanium coating.
📦 Seaworthy Packing: Individual plastic sleeve + steel-framed wooden crates for transit.

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⚙️ Shape-Specific Manufacturing Process

High-Frequency Automated TIG/Plasma Welding, online continuous bright annealing, and 32-head multi-stage outer diameter polishing.

🔍 Quality Assurance & Flaw Detection

100% inline ASTM E426 eddy current testing, digital laser OD micrometer inspection, flaring/flattening mechanical audits, and EN 10204 3.1 MTC verification.

Technical Compliance & Documentation Hub

📄 Technical Datasheet (PDF)

Detailed dimensional tolerances, mechanical properties, and cut-length specs.

Download Datasheet (PDF)

📜 EN 10204 3.1 MTR Sample

Official Mill Test Report verifying chemical composition and tensile strength.

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📦 Export Packaging Spec

Anti-scratch individual sleeves and heavy-duty steel frame crate packing overview.

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Compatible Hardware & Architectural Systems

SANON stainless steel materials and tubing are dimensionally calibrated to integrate with our modular components and pre-engineered balustrade systems.

🔩 Matching Hardware & Connectors

Explore precision-cast handrail brackets, flush elbows, tube joiners, and post bases dimensionally calibrated for this profile.

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🏗️ Full Architectural Railing Systems

Discover pre-engineered glass, cable, and post balustrade solutions that utilize SANON heavy-wall stainless steel tubing.

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