410S Stainless Steel Sheet & Plate

410S stainless steel, designated as UNS S41008, is a low-carbon version of the standard 410 martensitic stainless steel. It is primarily known for its improved weldability and resistance to sensitization, making it an ideal choice for high-temperature applications. Although it maintains the strength and wear resistance characteristic of 410 stainless steel, its low carbon content enhances its corrosion resistance, especially in welded structures, while also offering good formability.

Key Features

• Corrosion Resistance: 410S stainless steel offers better corrosion resistance than the standard 410 due to the reduction in carbon content. However, it is still not as resistant to corrosion as austenitic grades like 304 and 316. It performs well in mild atmospheric conditions, water, and some mild chemical environments.
• Weldability: One of the primary benefits of 410S is its high weldability. The low carbon content reduces the risk of carbide precipitation during welding, which can lead to intergranular corrosion. This makes it an ideal choice for welded applications in high-temperature environments.
• Heat Resistance: 410S can endure temperatures of up to 650°C (1200°F) in continuous usage. It retains its strength and oxidation resistance at moderate temperatures, though its resistance to oxidation is limited compared to more corrosion-resistant alloys.
• Strength and Hardness: While 410S has good strength, especially in the annealed condition, it is not as hard or wear-resistant as higher-carbon martensitic grades like 410. However, it can still be hardened through heat treatment to a moderate level.
• Machinability: 410S has good machinability in the annealed condition. The alloy is easy to fabricate and form before it is hardened, making it suitable for a variety of applications requiring complex shapes.

Technical Specifications:

• UNS Number: S41008
• DIN/EN Designation: 1.4000