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Stainless Steel Pipes | 2507 Duplex for Extreme Environments

$550.00 SGD

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Quantity 5 - 14 tons 15 - 19 tons >= 20 tons

Stainless Steel Pipes | 2507 Duplex for Extreme Environments

Property	Duplex 2507 (UNS S32750)
Material Grade	UNS S32750 / EN 1.4410
Chemical Composition	25% Cr, 7% Ni, 4% Mo, 0.27% N, ≤0.03% C
Tensile Strength	800–1000 MPa
Yield Strength	≥550 MPa
Hardness (Brinell)	290 HBW
Temperature Resistance	Up to 300°C (continuous)
Corrosion Resistance	Exceptional resistance to chloride stress corrosion cracking (SCC), pitting, crevice, and organic acids
Standard Compliance	ASTM A790, A789, EN 1.4410
Dimensions (OD)	6–2500 mm
Wall Thickness	0.5–150 mm
Surface Finish	Annealed, Pickled, Polished
Applications	Offshore oil platforms, chemical reactors, stainless steel muffler pipe systems, desalination plants

Extreme Environment Performance
- Superior Strength: With a tensile strength of 800–1000 MPa, Duplex 2507 outperforms standard austenitic grades like 316L, making it ideal for stainless steel pipe clamp systems in high-pressure oil and gas pipelines.
- Corrosion Resistance: The high chromium (25%), molybdenum (4%), and nitrogen (0.27%) content ensures resistance to chloride-induced SCC, organic acids (e.g., formic, acetic), and seawater.
Thermal and Mechanical Stability
- Maintains structural integrity at temperatures up to 300°C, suitable for stainless steel muffler pipe in automotive and industrial exhaust systems.
- Low thermal expansion coefficient minimizes deformation under thermal cycling, critical for stainless steel pipe coupling in chemical processing.
Versatility in Fabrication
- Seamless and welded options available, compatible with stainless steel pipe clamp and coupling solutions for modular installations.
- Excellent weldability and machinability, reducing downtime in offshore and petrochemical projects.

The weight of stainless steel pipes is calculated using:
$Weight (kg/m) = \frac{( O D - W T ) \times W T \times 0.02466}{1000}$
Where:

Example: A stainless steel muffler pipe with 100 mm OD and 5 mm wall thickness weighs 11.69 kg/m.

Laser Etching: ASTM/EN standards, heat number, and alloy grade (e.g., "UNS S32750").
Color Coding: Optional bands for rapid identification in industrial inventory systems.

Despite their corrosion-resistant properties, rust can occur due to:

Chloride Exposure: Coastal or industrial environments degrade passive oxide layers, especially in welded joints without post-weld cleaning.
Intergranular Corrosion: Improper welding of Duplex 2507 without nitrogen stabilization leads to chromium carbide formation at grain boundaries.
Surface Contamination: Iron particles from cutting tools or grease disrupt the protective chromium oxide layer.
Low-Quality Alloys: Substandard nickel or molybdenum content reduces resistance to reducing acids like hydrochloric.

Oil & Gas: Subsea pipelines, brine injection wells, and stainless steel pipe coupling networks.
Chemical Processing: Reactors, heat exchangers, and stainless steel muffler pipe for acid handling.
Marine: Seawater cooling systems and offshore platform structural components.

Certified Excellence: Compliance with ASTM, EN, and ISO standards, backed by SGS and TUV certifications.
Customization: Tailored stainless steel pipe clamp and coupling designs for modular installations.
Global Reliability: Proven performance in extreme environments, from Arctic oil fields to tropical desalination plants.
Sustainability: 100% recyclable materials with a 50+ year lifespan, reducing environmental impact.
Technical Support: 25+ years of metallurgical expertise, offering welding guides and corrosion prevention strategies.

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