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Premium 1.4529 Super Austenitic Stainless Steel Square & Rectangular Pipes
Product Name: Large Diameter 1.4529 Stainless Steel Square & Rectangular Pipe
Category: Super Austenitic Stainless Steel Pipes / Industrial Structural Pipes
Category: Super Austenitic Stainless Steel Pipes / Industrial Structural Pipes
Product Overview:
Engineered for the most demanding corrosive environments, our Large Diameter 1.4529 (UNS N08926) Stainless Steel Square and Rectangular Pipes are manufactured from premium super austenitic stainless steel. Featuring a high alloy composition of 25% Nickel, 20% Chromium, and 6% Molybdenum, combined with nitrogen strengthening, these pipes offer exceptional resistance to pitting, crevice corrosion, and chloride stress corrosion cracking. They are the ideal structural and piping solution for marine engineering, flue gas desulfurization (FGD) systems, and chemical processing plants where standard 316L or 904L stainless steels fail.
Engineered for the most demanding corrosive environments, our Large Diameter 1.4529 (UNS N08926) Stainless Steel Square and Rectangular Pipes are manufactured from premium super austenitic stainless steel. Featuring a high alloy composition of 25% Nickel, 20% Chromium, and 6% Molybdenum, combined with nitrogen strengthening, these pipes offer exceptional resistance to pitting, crevice corrosion, and chloride stress corrosion cracking. They are the ideal structural and piping solution for marine engineering, flue gas desulfurization (FGD) systems, and chemical processing plants where standard 316L or 904L stainless steels fail.
Key Features:
- Superior Corrosion Resistance: With a Pitting Resistance Equivalent Number (PREN) >40, our 1.4529 pipes provide outstanding protection against seawater, halide media, and acidic environments (such as sulfuric and phosphoric acid).
- High Mechanical Strength: The addition of nitrogen (0.15-0.25%) significantly enhances tensile strength (≥650 MPa) and yield strength (≥295 MPa) while maintaining excellent ductility (≥35% elongation).
- Excellent Weldability & Fabrication: Designed for easy fabrication, these pipes can be readily welded using standard TIG/MIG methods with ERNiCrMo-3 filler metals, ensuring robust structural integrity in complex assemblies.
- Wide Temperature Range: Suitable for extreme conditions, maintaining stable performance from cryogenic temperatures (-196℃) up to 400℃.
- Customizable Dimensions: Available in large diameter square and rectangular profiles with various wall thicknesses to meet specific structural and flow requirements.
Applications:
Widely used in flue gas desulfurization (FGD) systems, seawater desalination plants, marine hydraulic piping, chemical reactors, heat exchangers, and pollution control equipment.
Widely used in flue gas desulfurization (FGD) systems, seawater desalination plants, marine hydraulic piping, chemical reactors, heat exchangers, and pollution control equipment.
Why Choose Our 1.4529 Pipes?
- Unbeatable Durability: Resists pitting and crevice corrosion in harsh chloride-rich environments, far outperforming 316L and 904L.
- Structural Integrity: High nitrogen content provides superior strength without compromising toughness, ideal for heavy-duty structural applications.
- Cost-Effective Solution: Offers performance comparable to high-end nickel alloys at a fraction of the cost.
- Versatile Profiles: Available in large-diameter square and rectangular shapes, perfect for both fluid transport and structural support frames.
Technical Specifications (Customizable):
- Material: 1.4529 / UNS N08926 / Alloy 926 / X1NiCrMoCuN25-20-7
- Product Type: Square Pipe, Rectangular Pipe (Seamless or Welded)
- Size Range: Large diameter profiles (Customizable side lengths and wall thicknesses)
- Chemical Composition: Ni: 24-26%, Cr: 19-21%, Mo: 6-7%, N: 0.15-0.25%
- Mechanical Properties: Tensile Strength ≥650 MPa, Yield Strength ≥295 MPa
- Surface Finish: Pickled, Polished, or as required
- Standard: ASTM B673, B674, DIN 1.4529