Corten Steel Tubes & Pipes | APH Tubes, IRS M-41 | Pannani Tubes

Corten Steel Tubes

Weathering Steel & Air Preheater (APH) Tubes.
High resistance to flue gas corrosion.

Product Range

APH Tubes
Best Seller

Air Preheater (APH) Tubes

ASTM A423 Gr 1 & BS 3059. Available in ERW and Seamless. Designed to recover heat from boiler flue gases in power plants and sugar mills.

IRS M-41 Tubes
Railway Grade

IRS M-41 Steel Tubes

Indian Railway Standard (IRS M-41) corrosion-resistant steel. Widely used in railway wagons, coaches, and related structural fabrication.

Corten SHS RHS
Architectural

Corten Square & RHS

ASTM A847. Weathering steel hollow sections. Forms a stable, rust-like appearance. Highly desired for architectural facades, bridges, and landscaping.

Corten Exhaust Pipe

Exhaust & Chimney Tubes

High resistance to sulfur-bearing gases. Ideal for industrial chimneys, exhaust stacks, and ducting systems exposed to extreme weather.

Finned Corten Tubes
Heat Transfer

Finned Corten Tubes

Corten tubes fitted with MS or Corten fins (welded or extruded) to maximize heat transfer surface area in economizers and heat exchangers.

Corten Steel Plates

Corten Steel Plates

We also stock Corten A, Corten B, and IRS M-41 Plates/Sheets to complement your piping and structural requirements.

Material Grades

Corten steel forms a stable rust-like protective layer when exposed to the weather, eliminating the need for painting.

Standard Grade Type Primary Application
ASTM A423 Grade 1 & Grade 2 Seamless / ERW Tube Air Preheaters (APH) & Economizers.
IRS M-41 Corrosion Resistant Tube / Pipe / Plate Indian Railway wagons & coaches.
ASTM A847 High-Strength Low-Alloy Square & Rectangular Welded bridges, buildings, architecture.
BS 3059 Part 1/2 Steel Boiler Tubes Seamless / ERW British standard for boiler tubing.
EN 10219 S355J0WP, S355J2WP Structural Hollow European standard weathering steel structures.

Capabilities & Benefits

Round Tube Sizes

31.75 mm to 114.3 mm OD

Wall Thickness: 1.6mm to 6.0mm

Square & RHS Sizes

25x25 mm to 300x300 mm

Wall Thickness: 2.0mm to 10.0mm

Key Advantages

High Dew Point Corrosion Resistance

Longer lifespan in sulfur-rich flue gas environments.

Looking for a Quote?

We can supply Corten tubes cut to exact lengths for your APH bundles or structural projects.