High Alloy Corrosion Resistant 2507 Stainless Steel Bar Uns S32750 Super Duplex Stainless Steel Solid Round Bar

High Alloy Corrosion Resistant 2507 Stainless Steel Bar UNS S32750 Super Duplex Stainless Steel Solid Round Bar

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Material Type‌
‌S32750 is a duplex stainless steel, also known as super duplex stainless steel‌. It combines excellent corrosion resistance with high strength, making it an ideal choice for a variety of extreme environments.

Chemical Composition
The chemical composition of S32750 stainless steel includes:

Chromium (Cr): 22.0%～26.0%
Nickel (Ni): 6.0%～8.0%
Molybdenum (Mo): 3.0%～4.5%
Nitrogen (N): 0.20%～0.35%
Iron (Fe): Balance

Other elements such as carbon (C), silicon (Si), phosphorus (P), sulfur (S), etc. also have specific content limits.

Physical properties

Density: 8.03 g/cm³
Melting point: 1300-1390 ℃

Magnetic properties: None
Heat treatment process

Keep at 1000-1052℃ for 1-2 hours, then quickly cool in air or water.
Mechanical properties

Tensile strength: σb ≥ 795 MPa
Yield strength: σb ≥ 550 MPa
Elongation: ≥ 15%
Hardness: ≤ 310 HB

Performance Characteristics
S32750 stainless steel has the following performance characteristics:

‌Excellent corrosion resistance‌: High chromium, molybdenum and nitrogen content give it excellent resistance to pitting, crevice corrosion and general corrosion, especially in environments containing chlorides.
‌High strength‌: Its yield strength is generally twice that of austenitic stainless steel, which can meet some application scenarios with high material strength requirements.
‌Good welding performance‌: It can be joined to itself or other materials by a variety of welding methods, and no preheating is required during welding.
‌Good resistance to chloride stress corrosion cracking‌: The duplex structure gives it excellent resistance to chloride stress corrosion cracking.
‌Good machinability and weldability‌: S32750 stainless steel has good machinability and welding properties, and is suitable for parts and components that require precision machining and welding.
Application areas
Due to its excellent comprehensive performance, S32750 stainless steel is widely used in the following fields:

‌Petrochemical‌: Used to manufacture pipes, valves, pressure vessels and other components in petrochemical equipment.
‌Chemical processing‌: Can be used to manufacture chemical reactors, storage tanks, pipelines and other equipment.
‌Offshore and marine‌: Used for offshore platforms and equipment, seawater desalination plants, seawater cooling heat exchangers, etc.

S32750 Super Duplex Stainless Steel is a high-performance material suitable for applications requiring high strength and excellent corrosion resistance. Its wide application has proven its value in the industrial field, especially in the oil, gas, chemical processing and energy industries. With the development of technology and the increase in demand for high-performance materials, the application prospects of S32750 are promising.

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