Introduction to A182 F53: A high-performance stainless steel for marine applications
What is A182 F53?
A182 F53, also known as UNS S32750 or Super Duplex Stainless Steel 2507, is a high-strength, corrosion-resistant stainless steel alloy designed for use in extreme environments, particularly marine and offshore applications. This super duplex stainless steel offers a unique combination of high mechanical strength, excellent corrosion resistance, and superior durability, making it an ideal choice for harsh marine and chemical processing environments.
ASME B16.9 ASTM A815 UNS S32750 seamless LR 90 degree elbow
Chemical Composition of A182 F53
The chemical composition of A182 F53 is carefully balanced to enhance its corrosion resistance and mechanical properties:
| Element | Composition (%) |
| Carbon (C) | ≤ 0.03 |
| Manganese (Mn) | ≤ 1.20 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.020 |
| Silicon (Si) | ≤ 0.80 |
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 6.0 – 8.0 |
| Molybdenum (Mo) | 3.0 – 5.0 |
| Nitrogen (N) | 0.24 – 0.32 |
| Copper (Cu) | ≤ 0.50 |
| Iron (Fe) | Balance |
This composition provides exceptional resistance to chloride-induced stress corrosion cracking (SCC), pitting, and crevice corrosion, which are common challenges in marine and offshore environments.
Mechanical Properties of A182 F53
The mechanical properties of A182 F53 make it stronger and tougher than standard austenitic stainless steels:
| Property | Value |
| Tensile Strength | ≥ 795 MPa |
| Yield Strength (0.2% offset) | ≥ 550 MPa |
| Elongation | ≥ 15% |
| Hardness (Brinell) | ≤ 310 HB |
These properties allow A182 F53 to withstand high-pressure environments and resist mechanical wear, making it ideal for offshore and subsea applications.
Why is A182 F53 Ideal for Marine Environments?
1.Superior Corrosion Resistance
The high chromium (Cr), molybdenum (Mo), and nitrogen (N) content significantly improves resistance to pitting and crevice corrosion in seawater and chloride-rich environments.
Unlike traditional austenitic stainless steels, A182 F53 has a lower risk of stress corrosion cracking (SCC), which is critical in high-salinity marine conditions.
2.High Strength and Durability
A182 F53 offers twice the strength of standard 316L stainless steel, reducing material thickness and weight for offshore structures.
Its high tensile and yield strength allows it to withstand extreme pressures, making it perfect for subsea pipelines, offshore platforms, and marine fasteners.
3.Excellent Performance in Extreme Temperatures
A182 F53 maintains its strength and corrosion resistance across a wide range of temperatures, making it suitable for deep-sea applications where temperatures fluctuate.
4.Long Service Life and Cost Efficiency
The exceptional durability and resistance to marine corrosion reduce maintenance and replacement costs, making it a cost-effective solution for offshore industries.
A182 F53 Flanges
Applications of A182 F53 in Marine and Offshore Industries
Due to its superior properties, A182 F53 is widely used in marine and offshore applications, including:
- Subsea pipelines and manifolds
- Offshore platforms and FPSOs (Floating Production Storage and Offloading units)
- Seawater desalination plants
- Heat exchangers and pressure vessels
- Marine pumps, valves, and flanges
- Oil and gas exploration equipment
Haihao Group: Your Trusted Supplier of Marine-Grade Materials
As a leading expert in the pipeline system industry, Haihao Group provides high-quality A182 F53 components, including flanges, fittings, and pipeline accessories, for offshore and marine engineering projects. Our products are certified by ABS, DNV, BV, and other major classification societies, ensuring compliance with international standards.
We have extensive experience supplying marine-grade pipeline solutions for various offshore projects. If you require reliable and corrosion-resistant materials for your offshore or subsea operations, contact Haihao Group today! Email:sales@haihaogroup.com