309S Stainless Steel Coil for High-Temperature & Heat-Resistant Applications

309S Stainless Steel Coil

Heat-resistant stainless steel for elevated temperature service. 309S stainless steel is an austenitic chromium-nickel stainless steel designed for applications requiring excellent oxidation resistance at high temperatures. With higher chromium and nickel content than 304, 309S maintains structural stability and surface integrity in continuous and cyclic heat environments.

Quick Overview

Why Choose 309S Stainless Steel

• Excellent oxidation resistance: suitable for continuous service at elevated temperatures.
• High chromium & nickel content: improves heat resistance compared to 304/316.
• Good mechanical stability: maintains strength during thermal cycling.
• Good weldability: suitable for fabricated high-temperature components.

Material Considerations

309S stainless steel is primarily designed for high-temperature oxidizing environments. While it offers good general corrosion resistance, it is not intended for severe chloride or marine exposure. For maximum corrosion resistance in aggressive environments, higher alloy grades should be considered.

Why Choose Voyage Metal

• Heat-resistant grade expertise: experience supplying stainless steels for thermal applications.
• Quality consistency: strict control of thickness, flatness, and surface condition.
• Full traceability: EN 10204 3.1 mill test certificates with heat numbers.
• Flexible processing: slitting, cut-to-length, and custom packaging available.

Available Dimensions

Surface Finish Options

• 2B (cold rolled, matte)
• No.1 (hot rolled, annealed & pickled)
• 2D
• No.4 (brushed, decorative where applicable)

Processing Services

• Slitting into narrow coils
• Cut-to-length sheets
• Edge trimming
• Protective PVC film (optional)

Inspection & Documentation

• Chemical composition analysis
• Mechanical property testing
• Surface & dimensional inspection
• Mill Test Certificate: EN 10204 3.1

Typical Applications

• Industrial furnaces and heat treatment equipment
• Heat exchangers and thermal processing systems
• Burners, combustion chambers, and exhaust components
• High-temperature structural and fabricated parts
• Petrochemical and energy industry heat-resistant components

Packaging & Shipping

• Standard export seaworthy packing
• Steel strapping with protective wrapping
• Shipping: containerized sea freight
• Trade terms: EXW, FOB, CFR, CIF, DDP

Request a Quote

To receive an accurate quotation, please provide: thickness, width, surface finish, quantity, and destination port.

Voyage Metal
Website: www.voyagemetal.com
Email: [email protected]