Description

SS 347 Sheet

Our SS 347 Sheet is a niobium-stabilized austenitic stainless steel, ideal for welded structures, heat exchangers, and high-temperature chemical equipment. With enhanced resistance to intergranular corrosion, this stainless-steel sheet performs consistently under thermal cycling and extreme pressure environments. It also resists polythionic acid stress corrosion cracking, making it ideal for power plants, refineries, and aerospace systems.

These SS 347 sheets are commonly used in industries such as aerospace, chemical processing, petroleum refining, and food production due to their superior welding characteristics and resistance to creep and corrosion. Whether you’re manufacturing exhaust manifolds, pressure vessels, or chemical tanks, SS 347 Sheet ensures long-term performance and reliability.

📋 Technical Specifications:

• Material Grade: AISI 347 / UNS S34700

• Standards: ASTM A240 / ASME SA240

• Thickness Range: 0.5 mm to 50 mm

• Width: Up to 1500 mm (custom sizes available)

• Length: Up to 6000 mm or as required

• Available Finishes:

  • 2B (Mill Finish)

  • No. 1 (Hot Rolled, Annealed & Pickled)

  • No. 4 (Brushed / Satin)

  • BA (Bright Annealed)

  • No. 8 (Mirror Finish), Hairline, PVD Coated

  • PVC Protective Coating (optional)

⚙️ Key Features:

• Excellent resistance to intergranular corrosion after welding

• Stable at high temperatures (up to ~870°C / 1600°F)

• Enhanced creep strength and stress rupture properties

• Resistant to polythionic acid stress corrosion cracking

• Good formability, weldability, and mechanical properties

• Especially suitable for cyclic thermal conditions

🏭 Applications:

• Heat exchangers, boilers, and superheaters

• High-temperature chemical processing equipment

• Aircraft exhaust systems, engine components

• Power generation and refinery units

• Furnace parts, thermal oxidizers, and mufflers

• Piping systems exposed to high temperatures and pressure

🧰 Customization & Services:

• Laser cutting, waterjet cutting, plasma cutting

• Brushed, polished, and coated surface options

• Custom sizes, thicknesses, and finishes

• Mill Test Certificate (EN 10204 3.1 / 3.2) provided

• Export-grade packing and labeling solutions