ASTM A182 F6NM (S41500) Supermartensitic Stainless Steel Bar

F6NM Stainless Steel Bar Performance Characteristics and Applications

1. Performance Characteristics

1.1 Corrosion Resistance
F6NM stainless steel bar exhibits excellent corrosion resistance, especially in environments containing corrosive media such as sulfuric acid and hydrochloric acid, and is resistant to attack by chlorides and acids. Its high chromium, nickel, and molybdenum content forms a dense oxide layer, significantly enhancing its oxidation resistance.

1.2 High-Temperature Strength and Toughness
This material maintains high strength (yield strength ≥620 MPa, tensile strength ≥790 MPa) and good toughness even at high temperatures, with an elongation ≥15% and a reduction of area ≥45%, making it suitable for high-stress and heavy-load applications.

1.3 Processing and Weldability
F6NM bar exhibits excellent cold working properties and weldability. It can be formed through forging, heat treatment, and other processes. Its stable performance after welding makes it suitable for the manufacture of complex structures.

1.4 Wear and Fatigue Resistance
Its outstanding wear resistance results in low wear rates under harsh operating conditions. Combined with appropriate heat treatment (such as annealing and aging), it can significantly improve fatigue life and extend component service life.

2. Main Applications

2.1 Energy Sector
Widely used in nuclear power reactor components, hydropower station runners, and turbine components, withstanding high water pressure, high flow rates, and complex stresses.

2.2 Petrochemical Industry
Used in oil and gas pipelines, valves, and chemical reactors, it withstands high-temperature, corrosive environments, ensuring long-term, stable operation of the equipment.

2.3 Food and Medical
Suitable for food processing equipment (such as mixers) and medical devices, meeting hygiene standards and corrosion resistance requirements.

2.4 Industrial Equipment
Manufacturing high-strength parts (such as bearings and pump bodies) and pressure vessels, ensuring a balance between mechanical performance and reliability.